Monday, September 19, 2016

Protea cynaroides

Protea cynaroides, the king protea, is a flowering plant. It is a distinctive member of Protea, having the largest flower head in the genus. The species is also known as giant protea, honeypot or king sugar bush. It is widely distributed in the southwestern and southern parts of South Africa in the fynbos region.

The king protea is the national flower of South Africa. It also is the flagship of the The Protea Atlas Project, run by the South African National Botanical Institute.

The king protea has several colour forms and horticulturists have recognized 81 garden varieties, some of which have injudiciously been planted in its natural range. In some varieties the pink of the flower and red borders of leaves are replaced by a creamy yellow. This unusual flower has a long vase life in flower arrangements, and makes for an excellent dried flower.

Protea cynaroides is adapted to survive wildfires by its thick underground stem, which contains many dormant buds; these will produce the new growth after the fire.



The name of the plant family Proteaceae as well as the genus Protea, both to which P. cynaroides belongs to, derive from the name of the Greek god Proteus, a deity that was able to change between many forms. This is an appropriate image, seeing as both the family and the genus are known for their astonishing variety and diversity of flowers and leaves.




The specific epithet cynaroides refers to the artichoke-like appearance of the flower-heads: the artichoke belongs to the genus Cynara.

P. cynaroides is a woody shrub with thick stems and large dark green, glossy leaves. Most plants are one metre in height when mature, but may vary according to locality and habitat from 0.35 m to 2 metres in height. The "flowers" of Protea cynaroides are actually composite flower heads (termed an inflorescence) with a collection of flowers in the centre, surrounded by large colourful bracts. 

The flowerheads vary in size, from about 120 mm to 300 mm in diameter. Large, vigorous plants produce six to ten flower heads in one season, although some exceptional plants can produce up to forty flower heads on one plant. The colour of the bracts varies from a creamy white to a deep crimson, but the soft pale pink bracts with a silvery sheen are the most prized.

P. cynaroides grows in a harsh environment with dry, hot summers and wet, cold winters. Several adaptions include tough, leathery leaves, which helps to prevent excessive loss of moisture, and a large taproot which penetrates deep into the soil to reach underground moisture. Like most other Proteaceae, P. cynaroides has proteoid roots, roots with dense clusters of short lateral rootlets that form a mat in the soil just below the leaf litter. These enhance solubilisation of nutrients, thus allowing nutrient uptake in the low-nutrient, phosphorus-deficient soils of its native fynbos habitat.

The flowers are fed at by a range of nectarivorous birds, mainly sunbirds and sugarbirds, including the orange-breasted sunbird (Anthobaphes violacea), southern double-collared sunbird (Cinnyris chalybeus), malachite sunbird (Nectarinia famosa), and the Cape sugarbird (Promerops cafer). In order to reach the nectar, the bird must push its bill into the inflorescence. As it does so, its bill and face gets brushed with pollen, thereby allowing for possible pollination.

Along with birds, a host of insects are attracted to the flowerhead, such as bees, for example the Cape honeybee, and various beetle species such as rove beetles and the beetles of the huge family Scarabaeidae such as the protea beetle Trichostetha fascicularis and monkey beetles.


Like many other Protea species, P. cynaroides is adapted to an environment in which bushfires are essential for reproduction and regeneration. Most Protea species can be placed in one of two broad groups according to their response to fire: reseeders are killed by fire, but fire also triggers the release of their canopy seed bank, thus promoting recruitment of the next generation; resprouters survive fire, resprouting from a lignotuber or, more rarely, epicormic buds protected by thick bark. P. cynaroides is a resprouter as it shoots up new stems from buds in its thick underground stem after a fire.

Saturday, September 17, 2016

Lilium bulbiferum

Lilium bulbiferum, common names orange lily, fire lily and tiger lily, is a herbaceous European lily with underground bulbs, belonging to the Liliaceae. The Latin name bulbiferum of this species, meaning "bearing bulbs", refers to the secondary bulbs on the stem of the nominal subspecies.

Lilium bulbiferum reaches on average 20–90 centimetres (7.9–35.4 in) of height, with a maximum of 120 centimetres (47 in). The bulbs are ovoid, with whitish large and pointed scales and can reach about 1.5 centimetres (0.59 in) of diameter. The stem is erect, the leaves are lanceolate, up to 10 centimeters long. The inflorescence has one to five short-haired flowers. They are hermaphroditic and scentless, have six upright tepals, the outer are slightly narrower than the inner ones. The flowers can reach 4–6 centimeters in length and are bright yellow-orange with reddish-brown dots. The stamens are erect, about half as long as the tepals, with red anthers. The style is orange, 35 millimetres (1.4 in) of height. The flowering period extends from May through July.


There are two varieties, L. b. var. croceum (Chaix) Baker in the western part of the range, and L. b. var. bulbiferum in its eastern part. Only the last one always produces secondary aerial bulbs (bulbils) in the axils of the upper leaves. These bulbils fall to the ground and mature after two to three years. When manually separated from the stem they can easily used for propagating the plant.


The dwarf plants from the Maritime Alps, formerly described as var. chaixii (Elwes) Stoker, and the large plants from the region of Naples, formerly described as var. giganteum N. Terracc., are now considered as local variants of var. croceum.

L. bulbiferum is widely distributed in much of Europe from Spain to Finland and Ukraine. It grows in mountain meadows and on hillsides. They prefer calcareous soils in warm, sunny places, but also grow on slightly acid soils. They can be found at an altitude of 500–1,900 metres (1,600–6,200 ft) above sea level.

Tuesday, September 13, 2016

Gentiana lutea

Gentiana lutea (great yellow gentian) is a species of gentian native to the mountains of central and southern Europe. Other names include 'yellow gentian', 'bitter root', 'bitterwort', 'centiyane' and 'genciana'.



G. lutea is an herbaceous perennial plant, growing to 1–2 m (3.3–6.6 ft) tall, with broad lanceolate to elliptic leaves 10–30 cm (3.9–11.8 in) long and 4–12 cm (1.6–4.7 in) broad. The flowers are yellow, with the corolla separated nearly to the base into 5–7 narrow petals. It grows in grassy alpine and sub-alpine pastures, usually on calcareous soils.



G. lutea is remarkable for the intense bitterness of the root and every part of the herbage. Before the introduction of hops, gentian was used occasionally in brewing.

Gentian root has a long history of use as an herbal bitter and is an ingredient of many proprietary medicines. The parts used include the dried, underground parts of the plant and the fresh, above-ground parts. The root, which can be over 5 cm (2.0 in) thick and has few branches, is harvested in the autumn and dried for later use. Caution should be exercised as to its use because it is endangered, and the closely related Centaurium erythraea shares many of its constituents and actions.

The name is a tribute to Gentius, an Illyrian king who was thought to have found out that the herb had tonic properties.

In veterinary pharmacopeia in the 1860s, gentian root or gentian radix was considered useful as a tonic and stomachic.

Extracts of gentian root can be found in the American soft drink Moxie, and its unique flavor is attributed to that fact. It is also used in France to produce a Limousin specialty liqueur and aperitif, with plants gathered from the Auvergne area.


The European Gentian Association in Lausanne, Cercle Européen d'Etude des Gentianacées, has the objective to develop the knowledge and uses of yellow gentian and other species of Gentianaceae.

The bitter principles of gentian root are secoiridoid glycosides amarogentin and gentiopicrin. The former is one of the most bitter natural compounds known and is used as a scientific basis for measuring bitterness.

Monday, September 12, 2016

Cleome hassleriana

Cleome hassleriana, commonly known as spider flower, spider plant, or pink queen, is a species of flowering plant in the genus Cleome of the family Cleomaceae, native to southern South America in Argentina, Paraguay, Uruguay, and southeast Brazil.



It is an annual growing to a height of 150 cm (60 in), with spirally arranged leaves. The leaves are palmately compound, with five or seven leaflets, the leaflets up to 12 cm (5 in) long and 4 cm (2 in) broad and the leaf petiole up to 15 cm (6 in) long. The flowers are purple, pink, or white, with four petals and six long stamens. The fruit is a capsule up to 15 cm long and 3 mm (0.1 in) broad, containing several seeds. Flowering lasts from late spring to early fall.

C. hassleriana is commonly cultivated in temperate regions as a half-hardy annual. Numerous cultivars have been selected for flower color and other attributes. The "Queen" series includes the cultivars 'Violet Queen', 'Rose Queen', and 'White Queen'. The cultivar 'Helen Campbell' has gained the Royal Horticultural Society's Award of Garden Merit.

Sunday, September 4, 2016

Erythronium dens-canis

Erythronium dens-canis (common name dog's-tooth-violet or dogtooth violet) is a bulbous herbaceous perennial flowering plant in the family Liliaceae, growing to 25 cm (10 in). It is native to central and southern Europe from Portugal to Ukraine. It is the only naturally occurring species of Erythronium in Europe. Despite its common name, it is not closely related to the true violets of genus Viola (plant).




Erythronium dens-canis produces a solitary white, pink or lilac flower at the beginning of spring. The petals (growing to approx. 3 cm) are reflexed at the top and yellow tinted at the base. The brown spotted leaves are ovate to lanceolate and grow in pairs. The white bulb is oblong and resembles a dog's tooth, hence the common name "dog's tooth violet" and the Latin specific epithet dens-canis, which translates as "dog's tooth".


Erythronium dens-canis is found in damp, lightly shaded settings such as deciduous woodland. It is also widely cultivated and has gained the Royal Horticultural Society's Award of Garden Merit.

Its leaves may be consumed raw in salad, or boiled as a leaf vegetable. The bulb is also the source of a starch used in making vermicelli.

Anemone hupehensis

Anemone hupehensis, Anemone hupehensis var. japonica, and Anemone × hybrida (commonly known as the Chinese anemone or Japanese anemone, thimbleweed, or windflower) are species of flowering herbaceous perennials in the Ranunculaceae family.

Anemone × hybrida Paxton is a hybrid of Anemone hupehensis var. japonica and Anemone vitifolia. It should not be confused with Anemone hybrida Miq. ex Pritz., a synonym of Aanemone halleri All.

These plants thrive best in shady areas and under protection of larger plants, and in all but the hottest and the driest conditions in the United States. They are especially sensitive to drought or overwatering. They can be invasive or weedy in some areas, throwing out suckers from the fibrous rootstock, to rapidly colonise an area. Once established they can be extremely difficult to eradicate. On the other hand, they can take some time to become established.