Rubus arcticus, the Arctic bramble or Arctic raspberry, (includes Rubus arcticus ssp. acaulis - (Michx.) is a species of slow-growing bramble belonging to the rose family, found in arctic and alpine regions in the Northern Hemisphere. Its dark red fruit is considered a delicacy.
In the Pacific Northwest of western Canada and the northwestern United States, it is sometimes called the nagoon or nagoonberry, a name which derives from the Tlingit neigóon. A measure of the quality of its fruit is expressed in its Russian name княженика knyazhenika, signifying the "berry of princes". It grows in Alaska, northern Scandinavia, Russia, Poland, Belarus, Mongolia, northeastern China, North Korea , Estonia, Lithuania, Canada, and the northern United States as far south as Oregon, Colorado, Michigan, and Maine.
Rubus arcticus grows most often in acidic soils rich in organic matter. It is a thornless perennial up to 30 cm (1 foot) tall, woody at the base but very thin farther above the ground. flowers are in groups of 1-3, the petals pink, red, or magenta. Fruit is deep red or dark purple, with an unusual hardiness to frost and cold weather conditions.
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