Ipomoea triloba is a species of Ipomoea morning glory known by several common names, including littlebell and Aiea morning glory. It is native to the tropical Americas, but it is widespread in warm areas of the world, where it is an introduced species and often a noxious weed. This is a fast-growing, vining, annual herb producing long, thin stems with ivy-like, petioled, heart-shaped leaves 3 to 6 centimeters long. The leaves sometimes, but not always, have three lobes. The vines produce tubular bell-shaped flowers, each about two centimeters long. They are quite variable in color, in shades of pink, red or lavender, with or without white markings.
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I. triloba is considered a serious weed in Australia and the Philippines; a principal weed in Cuba, Hawaii, and Honduras; and a common weed in Argentina, Jamaica, and Indonesia (Holm et al., 1979). Like other 'morning-glories', it competes with crop plants for nutrients and water. Due to its twining nature, it also fouls mechanical harvesters. It has been noted as one of three morning-glory weeds of cotton fields in Arizona, USA (G Yatskievych, University of Arizona, personal communication, 1981).
In Java, I. triloba is a weed of brushwoods, living fences, sugarcane fields, roadsides, fields and waste places (van Ooststroom, 1965). A nematode assessment survey of the vegetable-growing areas of Barangay Sicsican in Talavera, Neuva, Ecija, Philippines found that I. triloba and several other weeds serve as alternative hosts for root-knot nematodes (Meloidogyne javanica and M. incognita). Such alternative hosts play an important role in the nematodes' ability to survive and persist during the rice season before the vegetable season (Mamari and Alberto, 1989).
In the Philippines, I. triloba is one of the main weeds of monoculture maize (Pamplona, 1988), one of the most common weeds in intercropped maize, sorghum, sunflowers, coconuts, tomatoes, and sesame (Moody, 1986), and has been listed there as one of 21 common weeds of cotton (Paller and Lijauco, 1981).
In one study, varying densities of I. triloba were maintained in monocultures of soyabeans or maize and maize-soyabean intercrops. Weed density did not normally have a significant effect on insect pest populations, but the presence of I. triloba tended to increase damage by insects in soyabeans and to act as a pest attractant in maize (Mercado et al., 1980).
I. triloba was first reported in Israel in 1986 as a weed in cotton (Joel and Liston, 1986).
Studies in the Solomon Islands showed that I. triloba and two other species are alternative hosts for witches' broom disease of sweet potatoes (Jackson and Zettler, 1983).
Ipomoea pes-caprae, also known as Beach Morning Glory or Goat's Foot, is a common pantropical creeping vine belonging to the family Convolvulaceae. It grows on the upper parts of beaches and endures salted air. It is one of the most common and most widely distributed salt tolerant plants and provides one of the best known examples of oceanic dispersal. Its seeds float and are unaffected by salt water.
Originally described by Linnaeus, it was placed in its current genus by Robert Brown in 1818.
This species can be found on the sandy shores of the tropical Atlantic, Pacific, and Indian Oceans. Goat's Foot is common on the sand dunes of Australia's upper north coast of New South Wales and can also be found along the entire Queensland coastline.
Goat's Foot is a primary sand stabilizer being one of the first plants to colonise the dune. It grows on almost all parts of the dune but is usually found on the seaward slopes sending long runners down towards the toe of the dune. The sprawling runners spread out from the woody rootstock but the large two-lobed leaves are sparse and a dense cover on the sand is rarely achieved except in protected situations. This plant grows in association with sand spinifex grass and is a useful sand binder thriving under conditions of sand blast and salt spray.
The whitestar potato, Ipomoea lacunosa, is a species that belongs to the Ipomoea genus. In this genus most members are commonly referred to as "morning glories". The name for the genus, Ipomoea, has root in the Greek words ips and homoios, which translates to worm-like. This is a reference to the plant's vine-like growth. Lacunosa comes from a Latin word meaning air spaces, correlating with the veination of the leaves. Ipomoea lacunosa is native to the United States and grows annually. The flowers of this species are usually white and smaller than most other morning glories.
Since Ipomoea lacunosa is a native species to the United States, the plant can be found in multiple areas throughout the country. Ipomoea lacunosa occurs in almost every state on the east coast, as well as some states in the Midwest, and California. The states that the whitestar potato can be found in are as follows: Alabama, Arkansas, California, Washington D.C., Delaware, Florida, Georgia, Iowa, Illinois, Indiana, Kansas, Kentucky, Louisiana, Massachusetts, Maryland, Montana, Mississippi, North Carolina, New Jersey, New York, Ohio, Oklahoma, Pennsylvania, South Carolina, Tennessee, Texas, Virginia, and West Virginia. This species was also introduced to Canada and lives successfully in the province of Ontario. Although this plant grows rapidly, its tendency to be invasive is rather small in comparison to other members of the genus.
The stalks of the plant that bears flowers is rough and usually has 1-3 flowers. The funnel-shaped flowers of the plant are normally white, but on rare occasion the flowers can be light purple or pink. The five petals are joined (sympetalous) or shallowly lobed and are approximately 2.5 cm long. The sepals are light green, lanceolate, take on a leathery texture and can be up to 11.5 mm long. The anthers are a pinkish-purple and the filaments are white. The ovary is superior, cone-like in shape, and green. There is a single white stigma and style. There are five stamen. The flowers have no perceptible or obvious scent. There are large seed capsules in the flower that are spherical in shape and hairy. The seeds themselves are irregularly oblong, shiny, and brown or black.
Fruit is seen in the form of a capsule that is slightly flattened or rounded in shape, it can be up to 10mm wide.
Trixis californica (American threefold or trixis) is a species of flowering plant in the family Asteraceae. It is native to the southwestern United States in California, Arizona, New Mexico, and Texas, and in Mexico in the states of Baja California, Chihuahua, Coahuila, Durango, Nuevo León, Sinaloa, Sonora, Tamaulipas, and Zacatecas.
Trixis californica is one of 22 species in Trixis, a genus that occurs in North America, Central America, the West Indies, northern Argentina, Uruguay, and southern Brazil.
Trixis californica is a sprawling shrub or subshrub with flower heads with about 15 bright yellow flowers each. The inflorescence is terminal, usually a panicle or corymb, but sometimes the heads are borne singly at the tips of branches. Leaves are lance-shaped (lanceolate), dark green, 2–11 cm long, and 0.5–3 cm wide. This species occurs from sea level to 5000 feet in elevation. Its habitat types include rocky hillsides, thorn scrub, and desert washes and brush. In the western Sonoran Desert it is exclusive to washes and only grows amongst other plants. In the Colorado Desert it grows in creosote scrub. It grows in scrub in the Yuma Desert, east of the Colorado River. Though it usually flowers between February and October, it may bloom nearly year-round depending on winter weather conditions.
Lobelia laxiflora is a species of flowerin gplant in the bellflower family, Campanulaceae. It is native to the Americas, where it is distributed in South, Central, and North America as far north as Arizona in the United States. It is known by several English-language common names, including Mexican lobelia, Sierra Madre lobelia, Mexican cardinalflower, looseflowers lobelia, and drooping lobelia. In Spanish it is known as aretitos, acaxóchitl, and chilpanxóchitl.
In general, this is a perennial herb, subshrub, or shrub usually growing up to about 1.5 meters in maximum height, but known to reach 3 meters. The leaves vary in shape, size, and texture. The inflorescence is a raceme up to 40 centimeters long bearing leaflike bracts and several flowers. The flower may be over 6 centimeters long including its tubular base and corolla with narrow, spreading lobes. It is usually red, sometimes yellowish. The anthers protrude from the corolla. The plant produces seeds and also spreads via underground runners.
Like other lobelias, this species contains medicinally useful alkaloids. Several new compounds have been discovered during chemical analyses of this plant.
Polygala vulgaris, known as the common milkwort, is a herbaceous perennial plant of the genus Polygala belonging to the Polygalaceae family.
The biological form of Polygala vulgaris is hemicryptophyte scapose, as its overwintering buds are situated just below the soil surface and the floral axis is more or less erect with a few leaves.
Polygala vulgaris reaches on average 7–35 centimetres (2.8–13.8 in) in height. The stems have many branches and are woody at the base. It has alternating pointed leaves, almost glabrous, 2 to 4 mm wide and 10 to 20 mm long. Basal leaves are spatulate, with rounded apex, while the upper leaves are lanceolate.
The flowers are gathered in long terminal inflorescences. The color of the corolla varies between blue and violet, it can rarely occurs purple forms. The flower's outer three sepals are normally small, green and insignificant, while the inner two sepals are bigger. The inner sepals are usually shorter than the petals. The stalks of the eight stamens are joined together to form a tube, and united with this tube, one on either side, are two tiny petals. On the lower side of the flower lies the third petal; it too, is joined to the stamen tube, but it is larger, and fringed. The flowering period extends from May through July.
Common Milkwort is quite similar to the Heath Milkwort (Polygala serpyllifolia), but in this species the inner sepals are usually longer than the petals. The Heath Milkwort Polygala serpyllifolia can be all the same colours except for white. These four possible colours account for the milkworts' Irish folk-name of 'four sisters'.
The Great Blue Lobelia (Lobelia siphilitica) is a species within the Campanulaceae family. It is an herbaceous, perennial dicot native to eastern and central Canada and United States. Growing up to three feet tall, it lives in zones 4 to 9 in moist to wet soils. It produces a spike of zygomorphic flowers in the late summer.
It blooms from August to October.
It is a short lived perennial (with each plant living for only a few years).
Although self-compatible, a flower is unable to offer pollen to itself and it must be pollinated by insects (primarily bees in the Bombus genus).
Great lobelia is a Missouri native perennial which typically grows in moist to wet locations along streams, sloughs, springs, swamps, meadows and in low wooded areas. A clump-forming perennial which features light to dark blue, tubular, 2-lipped flowers with the three lobes of the lower lip appearing more prominent than the two lobes of the upper lip. Flowers arise from the upper leaf axils forming a dense terminal raceme atop stiff, unbranched, leafy stalks typically rising 2-3' tall. Finely-toothed, lance-shaped, light green leaves (to 5" long). Late summer bloom period. Species name of siphilitica arose from a prior medicinal use of the plant in the treatment of venereal disease. Also sometimes commonly called blue cardinal flower.
Luffa operculata (common name, Sponge Cucumber, Wild Loofa or mướp xơ in Vietnamese) is a species of Luffa. It is cultivated for its fruit, which when fully ripe is strongly fibrous and is used as a fibrous scrubbing sponge for household cleaning. The fruit is a capsule with spikes. The fruit is dark-brown when mature. It is also grown in gardens and yards as an ornamental plant. In colder places they can be grown indoors as a houseplant.
The species name is derived from the word, operculum, meaning "little lid." When the fruits are mature, and the seeds are ready to be dispersed, a small part of the bottom tip (blossom end) opens up. Then, the seeds fall to the ground.
This annual climber has an angular stem and can grow to a height of three metres. Its kidney and heart-shaped leaves have three to five lobes and are 10 to 12 cm in length. The stamenless pale yellow flowers, which are to be found on the leaf axils, produce a pointed cylindrical fruit about the size of a plum. On the lengthways ribs, the grey, pumpkin-like fruit is covered in short prickles. The fruit's interior contains pithy tissue, a finely woven fibrous tissue and pale-brown, flat seeds.
Luffa originates from Columbia, Peru, Brazil and Mexico and is cultivated in areas where it occurs naturally.
A.Vogel uses a homeopathic dilution in accordance with the current Homoopathisches Arzneibuch (HAB) (New Official Homoeopathic Pharmacopeia). The dried fruits of Luffa operculata L. are used.
In its country of origint, the spongy tissue of the dried fruit is used as a medicinal remedy and as a cosmetic sponge
Citrullus colocynthis, with many common names including colocynth, bitter apple, bitter cucumber, desert gourd, egusi, vine of Sodom, or wild gourd, is a desert viny plant native to the Mediterranean Basin and Asia, especially Turkey (especially in regions such as İzmir), Nubia and Trieste. It resembles a common watermelon vine but bears small, hard fruits with a bitter pulp. It originally bore the scientific name Colocynthis citrullus, but is now classified as Citrullus colocynthis.
The flowers are yellow and solitary in the axes of leaves and are borne by yellow-greenish peduncles. Each has a subcampanulated five-lobed corolla and a five-parted calyx. They are monoecious therefore the male (stamens) and the female reproductive parts (pistils and ovary) are borne in different flowers on the same plant. The male flowers’ calyx is shorter than the corolla. They have 5 stamens, 4 of which are coupled and 1 is single with monadelphous anther. The female flowers have 3 staminoids and a 3-carpels ovary. The two sexes are distinguishable by observing the globular and hairy inferior ovary of the female flowers.
Citrullus colocynthis is a perennial plant that can propagate both by generative and vegetative means. However, seed germination is poor due to the extreme xeric conditions, therefore the vegetative propagation is more common and successful in nature. In the Indian arid zone the growth takes place between January and October but the most favorable period for the vegetative growth is during summer, which coincides with the rainy season. The growth declines as soon as the rains and the temperature decrease and almost stops during the cold and dry months of December and January.
Colocynth prefers sandy soils and is a good example of good water management which may be useful also on research to better understand how desert plants react to water stress.
To enhance production, an organic fertilizer can be applied.
Colocynth is also commonly cultivated together with cassava (intercropping) in Nigeria.
Cultivated colocynth suffers of climatic stress and diseases such as cucumber mosaic virus, melon mosaic virus, Fusarium wilt, etc. as any other crop. To improve it, a relatively new protocol for regeneration has been developed with the aim of incorporating disease and stress resistance to increase yield potential and security avoiding interspecific hybridization barriers.
Bidens pilosa is a species of flowering plant in the aster family, Asteraceae. It is native to the Americas but it is known widely as an introduced species of other regions, including Asia and the Pacific Islands. Its many common names include black-jack, beggar-ticks, cobbler's pegs, and Spanish needle.
This plant is considered a weed in some tropical habitats. However, in some parts of the world it is a source of food or medicine. For example, in sub-Saharan Africa, the tender shoots and young leaves are used fresh or dried as a leaf vegetable, particularly in times of scarcity.
Bidens pilosa is an annual forb of gracile habit, growing up to 1.8 meters tall. It grows aggressively on disturbed land and often becomes weedy. The leaves are oppositely arranged and pinnate in form with three to five dentate, ovate-to-lanceolate leaflets. The petioles are slightly winged.
The plant may flower at any time of the year, but in temperate regions it blooms mainly in summer and autumn. Flowers are borne in small heads on relatively long peduncles. The heads bear about four or five broad white ray florets, surrounding many tubular yellow disc florets.
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The fruits are slightly curved, stiff, rough black rods, tetragonal in cross section, about 1 cm long, with typically two to three stiff, heavily barbed awns at their distal ends. The infructescences form stellate spherical burrs about one to two centimeters in diameter. The barbed awns catch onto animals or clothing, and can injure flesh. It is an effective means of seed dispersal by zoochory, as the seeds are transported by animals. This mechanism has helped the plant become a cosmopolitan weed in temperate and tropical regions.
Calendula maritima, known as the sea marigold and trailing calendula, is a very rare species from the family of Asteraceae. Some scientists regarded it as Calendula suffruticosa subspecies maritima.
This halophyte plant is endemic to the western part of Sicily in small coastal habitats, and is a critically endangered species. As of 2012, this plant could still be found in only five small sites in East Sicily. The Province of Trapani has chosen the plant as its official symbol. The sea marigold occurs only on the Sicilian coast: on the island mainland between Marsala and the Monte Cofano; and on the two nearby islets Isola Grande dello Stagnone and Isola la Formica. The most significant population is in a small 10-km2 (3.9-mi2) nature reserve area within the Riserva Naturale Saline di Trapani e Paceco.
It is on the IUCN Red List of critically endangered plant species.
This perennial plant reaches a height between 20 and 40 cm (7.9 and 15.7 in). The stems can be easily lignified on the underparts and the leaves are covered with short sticky hairs. The young stems are at first erect, but later they begin to hang and spread on the soil.
In contrast to Calendula officinalis (pot marigold), the leaves are fleshy and have a strong smell. The form of the leaves varies from egg-shaped to linear depending on their placement on the stems.
The basket-shaped blossoms consists of pale to bright yellow single-standing petals, and have a diameter between 3 and 5 cm (1.2 and 2.0 in). The main flowering period is from May to June.
The C. maritima habitat outside the nature reserve is under serious threat of destruction due to urban development, such as expansion of the Marsala harbour. In addition, other threats and reasons for its rarity include air pollution in the nature reserve from the nearby salt-works and the competition of invasive species, such as the Hottentot fig 'ice plant' (Carbobrotus edulis), in all native locations. The exact number of the remaining native plants is currently unknown.
Calendula officinalis (pot marigold, ruddles, common marigold, garden marigold, English marigold, or Scottish marigold) is a plant in the genus Calendula of the family Asteraceae. It is probably native to southern Europe, though its long history of cultivation makes its precise origin unknown, and it may possibly be of garden origin. It is also widely naturalized further north in Europe (north to southern England) and elsewhere in warm temperate regions of the world.
Calendula officianalis is a short-lived aromatic herbaceous perennial, growing to 80 cm (31 in) tall, with sparsely branched lax or erect stems. The leaves are oblong-lanceolate, 5–17 cm (2–7 in) long, hairy on both sides, and with margins entire or occasionally waved or weakly toothed. The inflorescences are yellow, comprising a thick capitulum or flowerhead 4–7 cm diameter surrounded by two rows of hairy bracts; in the wild plant they have a single ring of ray florets surrounding the central disc florets. The disc florets are tubular and hermaphrodite, and generally of a more intense orange-yellow colour than the female, tridentate, peripheral ray florets. The flowers may appear all year long where conditions are suitable. The fruit is a thorny curved achene.
Cultivation
Calendula officinalis is widely cultivated and can be grown easily in sunny locations in most kinds of soils. Although perennial, it is commonly treated as an annual, particularly in colder regions where its winter survival is poor and in hot summer locations where it also does not survive.
Calendulas are considered by many gardening experts as among the easiest and most versatile flowers to grow in a garden, especially because they tolerate most soils.
In temperate climates, seeds are sown in spring for blooms that last throughout the summer and well into the fall. In areas of little winter freezing (USDA zones 8-11), seeds are sown in autumn for winter color. Plants will wither in subtropical summer. Seeds will germinate freely in sunny or half-sunny locations, but plants do best if planted in sunny locations with rich, well-drained soil. Pot marigolds typically bloom quickly from seed (in under two months) in bright yellows, golds, and oranges.
Tagetes minuta, also known as southern cone marigold, stinking roger or black mint, is a tall upright marigold plant from the genus Tagetes, with small flowers, native to the southern half of South America. Since Spanish colonization, it has been introduced around the world, and has become naturalized in Europe, Asia, Australasia, North America, and Africa.
It is used as a culinary herb in Peru, Ecuador, and parts of Chile and Bolivia. It is called by the Quechua terms wakatay in Peru or wakataya in Bolivia. It is commonly sold in Latin grocery stores in a bottled, paste format as black mint paste.
The oil is also used to treat open wounds, parasites and other things.Tagetes contains Anthelminthic, carminative, diaphragmatic, antispasmodic, bactericidal, emmenagogue, fungicidal, and stomachic properties. These active elements make Tagetes as great medical herb. Several pharmaceutical products are made by tagetes oil. Also in some places, the oil is used in making herbaceous and floral perfumes.If you are suffering from any of the following diseases: Athlete’s foot, bunions, calluses, chest infections, corns, coughs catarrh, , fungal infections, and parasitic infections, tagetes oil can really cure you. You can also use the oil with blending with jasmine, lemon, bergamot, clary sage etc citrus oils.
Tagetes erecta, the Mexican marigold, also called Aztec marigold, is a species of the genus Tagetes native to Mexico and Central America. Despite its being native to the Americas, it is often called African marigold. In Mexico, this plant is found in the wild in the states of San Luis Potosí, Chiapas, State of México, Puebla, Sinaloa, Tlaxcala, and Veracruz. This plant reaches heights of between 50–100 cm (20–39 in). The Aztecs gathered the wild plant as well as cultivating it for medicinal, ceremonial and decorative purposes. It is widely cultivated commercially with many cultivars in use as ornamental plants, and for the cut-flower trade.
Landscape Uses:Border, Container, Foundation, Massing, Seashore, Specimen. Requires a well-drained moderately fertile soil in a sunny position[200]. Grows well in heavy clay soils and in sandy soils. Although not very frost resistant, it can be grown as a tender annual in Britain, sowing the seed in a greenhouse in the spring and planting out after the last expected frosts.
The flowers are often sold in local markets in Nepal and used as an offering to the Gods. A number of named forms have been developed for their ornamental value. The cultivar 'Yellow Climax' has mild flavoured edible flowers that can be used as colourful garnishes. All parts of the plant emit an unpleasant smell similar to that of stale urine when they are bruised. Removing dead flowers before the seed is formed will extend the flowering season. Plants are prone to attacks by slugs, snails and botrytis. Special Features: North American native, Fragrant foliage, Suitable for cut flowers, Suitable for dried flowers.
The French marigold (Tagetes patula) is a species in the daisy family (Asteraceae). It is native to the Americas with several naturalised populations around the world.
Physical characteristics
The flower is an annual, occasionally reaching 0.5 m by 0.3 m. In some climates it flowers from July to October. In its native habitat of the highlands of central Mexico, blooms are produced from September to killing frost. Achenes ripen and are shed within two weeks of the start of bloom. The heads contain mostly hermaphrodite (having both male and female organs) florets and are pollinated primarily by beetles in the wild, as well as by tachinid flies and other insects. The leaves of all species of marigold include oil glands. The oils are pungent.
Used mainly as an edging plant on herbaceous borders, it is a low-growing plant with flowers of blended red and yellow in most varieties. French marigolds are commonly planted in butterfly gardens as a nectar source.
Medicinally, many cultures use infusions from dried leaves or florets.
Tagetes patula florets are grown and harvested annually to add to poultry feed to help give the yolks a golden color. The florets can also be used to color human foods.
A golden yellow dye is used to color animal-based textiles (wool, silk) without a mordant, but a mordant is needed for cotton and synthetic textiles.
The whole plant is harvested when in flower and distilled for its essential oil. The oil is used in perfumery; it is blended with sandalwood oil to produce 'attar genda' perfume. About 35 kg of oil can be extracted from one hectare of the plant (yielding 2,500 kg of flowers and 25,000 kg of herbage).
The plant is used in companion planting for many vegetable crops. Its root secretions are believed to kill nematodes in the soil and it is said to repel harmful insects, such as white flies on tomatoes.
Nitrophila occidentalis is a species of flowering plant in the amaranth family known by the common name boraxweed. It is native to the western United States and northern Mexico, where it can be found in habitat with moist alkaline soils, such as salt pans. It is a rhizomatous perennial herb producing decumbent or erect stems up to about 30 centimeters tall. The stems have paired branches lined with oppositely arranged, fleshy, linear or oblong green leaves up to 1.6 centimeters in length. Flowers occur in the leaf axils, alone or in clusters of up to 3, accompanied by small bracts. The flower lacks petals but has five pointed sepals 1 or 2 millimeters long which are white or pink in color, fading white with age.
Stem: decumbent to erect. Leaf: sessile, occasionally scale-like on decumbent stems. Inflorescence: bracts 2; flowers 1, sessile, or 2–3, short-pedicelled. Flower: calyx 2–3.3 mm, pink, white in age. Seed: ± 1 mm, black or brown, dull.
Dianthus gratianopolitanus (Cheddar pink) is a species belonging to the Caryophyllaceae family. It is a herbaceous perennial, hardy to zones 4-8. It grows to a height of 0.5 to 1 feet, blooming from May to June. Flowers are fragrant and rose pink. Grows best in full sun, and has medium water requirements. Overwatering or poor drainage leads to crown rot, and they do not tolerate wet winter soil conditions.
This dianthus cultivar is one of the cheddar pinks. It is a mat-forming perennial which produces numerous scented rose-pink flowers (to 1.5" diameter) singly or in twos atop wiry stems (to 12" tall) arising from tufted mounds of grassy, gray-green, linear foliage. Flowers are larger than those of most other cultivars in this species, hence the common name. Blooms in spring with some intermittent rebloom in summer, particularly if flowers are promptly deadheaded before producing seed.
Cheddar pinks are best in rock gardens, border fronts or in some difficult sites such as rocky slopes or over stone walls. Effective small area ground cover. Also an effective edging plant.
Easily grown in average, medium, well-drained soil in full sun. Well-drained soils are essential to prevent crown rot. Plants will usually not survive in wet winter soils. Plants prefer slightly alkaline soils. Species tolerates heat and humidity (as well as some drought) better than most other species of dianthus. Remove spent flowers to promote continued bloom. After flowering is completed, plants may be lightly sheared back to maximize foliage effect as a dense ground cover.
Celosia argentea, commonly known as plumed cockscomb, or the silver cock's comb, is a herbaceous plant of tropical origin, and is known for its very bright colors. In India and China it is known as a troublesome weed.
Celosia argentea is a tender annual that is often grown in gardens. It blooms in mid-spring to summer. It is propagated by seeds. The seeds are extremely small, up to 43,000 seeds per ounce. The flowers are hermaphrodites.
As these plants are of tropical origin, they grow best in full sunlight and should be placed in a well drained area. The flowerheads can last up to 8 weeks, and further growth can be promoted by removing dead flowers.'=
Celosia argentea var. cristata 'Flamingo Feathers' is a cultivar that can grow up to 2 feet in height. The colors are predominantly pink to light violet, and the leaves are a darker green than other cultivars. The Century cultivars are usually taller (1–2 feet), and are bright red, yellow, orange, or pink. The Kimono cultivars are generally smaller (4 inches - 1 foot), and have more muted colors, though similar to the Century cultivars. Other colors, such as white, burgundy, orange-red, etc., can be found. Certain varieties will grow to 3–4 feet in height.[4] Celosia plumosa, also known as Prince of Wales Feathers, is a synonym for Celosia argentea. Often sold as C. plumosa 'Prince of Wales Feathers'. Seeds may be sold as mixtures.
Xerophyta retinervis is a deciduous perennial up to 2 metres tall with stout, erect stems, densely covered in persistent, fibrous leaf bases, often charred and blackened by veldfires. Fragrant flowers appear after fire or rain, and are blue or mauve, or rarely white. The small capsules are covered in rough hairs and are loculicidally dehiscent, releasing numerous small, black angled seeds about 2 mm long. The species is tolerant of extreme conditions such as drought, fire, and low temperatures. The old leaf bases are arranged so that rainwater is funnelled down and to the core, where it is absorbed by densely packed roots that run the entire length of the stem. Strap-shaped leaves occur in tufts along stems.
The species is widespread throughout seasonally high rainfall regions, occurring in grasslands on rocky outcrops, and sheetrock with a covering of shallow soil. It may be found through KwaZulu-Natal, Mpumalanga, Gauteng, Limpopo, North West Province, Botswana and Swaziland.
There are some 50 species in this genus, nine occurring in South Africa. The generic name is from the Greek 'xeros' = 'arid', and 'phytos' = 'plant' an allusion to its being drought-tolerant, while the specific name is Latin for 'vein network'. Plants collected by Burke & Zeyher in the Magaliesberg were described by Baker in 1875. Synonyms have included Barbacenia retinervis (Baker) Burtt Davy, Hypoxis vellosioides Harv. ex Baker, Vellozia clavata (Baker) Baker Vellozia retinervis (Baker) Baker and Xerophyta clavata Baker.
Freycinetia arborea, ʻIeʻie, is a densely branched, brittle, woody climber in the family Pandanaceae, endemic to the Pacific Islands. ʻIeʻie is found in moist forest on the Hawaiian, Marquesas, Austral, Society, and Cook Islands. It grows into the forest canopy, attaching itself to a host tree using aerial roots. It may also grow as a sprawling tangle on the forest floor.
The shiny green leaves have pointed ends and are spiny on the lower side of the midrib and along the edges.Leaves measure 40–80 centimetres (16–31 in) long and 1–3 centimetres (0.39–1.18 in) wide, and are spirally arranged around the ends of branches. Flowers form on spike-like inflorescences at the end of branches, and are either staminate or pistillate. Staminate spikes are yellowish-white and up to 10 centimetres (3.9 in) in length.
Pistillate spikes are 3–4 centimetres (1.2–1.6 in) but elongate to 7.5–9.5 centimetres (3.0–3.7 in) once fruit are produced. Three to four spikes are surrounded by orange-salmon bracts. Fruit is 1 centimetre (0.39 in) long and contains many 1.5-millimetre (0.059 in) seeds. The bracts and fruit of the ʻieʻie were a favorite food of the ʻōʻū (Psittirostra psittacea), an extinct Hawaiian honeycreeper that was formerly a principal seed dispersal vector for plants with small seeded, fleshy fruits in low elevation forests. It is also a favored food of the ʻalalā (Corvus hawaiiensis), which is currently extinct in the wild.
