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Braya pilosa
Also called Hairy Rockcress, Pilose Braya, Hairy Northern Rockcress, Long's Northern Rockcress
Braya pilosa is a long-lived perennial flowering plant of the mustard family known by the common name hairy braya. It was first found by Sir John Richardson in 1826 during an expedition in search of the Northwest Passage. It wasn't found for 154 years, between 1850 and 2004.
It occurs on bluffs and dry uplands composed of sandy and clay loam. Its range is limited to the unglaciated portions of Cape Bathurst and Baillie Islands on the shore of the Beaufort Sea in the Northwest Territories, and it is listed at G2 - imperiled by NatureServe and endangered by the Committee on the Status of Endangered Wildlife in Canada (COSEWIC). Its chief threats are loss of habitat through rapid coastal erosion and saline wash from storm surges, and by melting permafrost. There is between 15,000 and 20,000 plants in the 13 known occurrences of Hairy Braya, with approximately 80% of these being mature.
Fernald's northern rockcress · Alpine Northern Rockcress · Narrowfruit braya · Long's northern rockcress · Greenland northern rockcress · Northern-rockcress
Text excerpted from the Wikipedia article Braya pilosa by its contributors, under CC BY-SA 4.0; the excerpts are shared under the same licence.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.
