Astragalus cremnophylax var. hevronii |
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hevron's milkvetch, sentry milkvetch |
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Habit | Plants forming tufts or prickly cushions. |
Leaves | rachis erect or ascending, stiff. |
Corollas | banner 7–8 × 5.4–6 mm; keel 5.2–5.7 mm. |
Astragalus cremnophylax var. hevronii |
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Phenology | Flowering Apr. |
Habitat | In Kaibab Limestone crevices. |
Elevation | 1500–1600 m. (4900–5200 ft.) |
Distribution |
AZ |
Discussion | Variety hevronii is known only from the eastern rim of Marble Canyon along the Colorado River. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 11. |
Parent taxa | |
Sibling taxa | |
Name authority | Barneby: Brittonia 44: 238. (1992) |
Web links |