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Boechera yorkii
A rare perennial mustard relative from one canyon range in Death Valley National Park, known from only two sites. It grows on dolomite cliffs in remote mountain terrain and is not a garden plant.
Boechera yorkii is a rare species of flowering plant in the mustard family known by the common name Last Chance rockcress. It is endemic to Inyo County, California, where it is known only from the Last Chance Range in Death Valley National Park. There are only two occurrences known, but the plant occurs in remote, nearly inaccessible mountain territory, so more plants may exist unobserved. The species was only described to science in 2004. Its habitat is rocky mountain canyons on cliffs of dolomite.
This is a perennial herb growing from a tough, woody caudex with a basal rosette of narrow linear or lance-shaped leaves coated in branching hairs. The erect stem grows 10 to 30 centimeters tall. It is covered in a feltlike coat of hairs. The inflorescence atop the stem produces 8 to 35 flowers which grow outward and then droop.
Boechera constancei · Brewer's rockcress · Cobre rockcress · Crandall's Rockcress · Pinyon Rockcress · Grouse Creek Rockcress · Mt. Sapphire Rockcress · Gunnison's Rockcress · Hoffmann's Rockcress · Holboell's Rockcress · Lemmon's Rockcress · Ophir Pass Rockcress
Text excerpted from the Wikipedia article Boechera yorkii by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.
The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.
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.
