671802 Boechera grahamii (Lehm.) Windham & Al-Shehbaz
Distribution
Northern Alaska - Yukon: Rare
Central Canada: Rare
Hudson Bay - Labrador: Present only in the Borderline Arctic
Shrub Tundra: Rare
Bordering boreal or alpine areas: Frequent
- Windham & Al-Shehbaz, Harvard Pap. Bot. 12: 241 (2007). - Turritis grahamii Lehm., Index Seminum (Hamburg) 1831: 7 (1831). Based on Turritis patula Graham, Edinburgh New Philos. J. 7: 350 (1829), non Ehrhart (1792). Internal note: Type information lacking.
- Arabis dacotica Greene, Leafl. Bot. Observ. Crit. 2: 80 (1910). Described from South Dakota (U.S.A.). - Arabis divaricarpa var. dacotica (Greene) B. Boivin, Amer. Midl. Naturalist 54: 510 (1955).
2n=
21 22 (3x). - Canada. - At least four reports.
Not included: Reports of 2n = 13+2b and 14 (2x) and of 28 (4x), all from Canada and U.S.A. (several reports) belong to other species. Al-Shehbaz and Windham (2010) accepted only triploids in this species.
Geography: North American: ALA CAN.
Notes: The name Boechera grahamii is the correct one for the northern plant that for long has gone as B. divaricarpa (a much more southern species, se Excluded taxa). Boechera grahamii is apomictic and a hybrid species from B. collinsii (Fernald) Á. Löve & D. Löve (central North American) and B. stricta. See Al-Shehbaz and Windham (2010).
Higher Taxa
- Boechera [6718,genus]