Astragalus mollissimus var. mogollonicus |
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Mogollon woolly locoweed, woolly locoweed |
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Habit | Plants acaulescent, usually dwarf. |
Stems | reduced to thick crowns, closely invested with stipules. |
Leaves | (4–)6–16 cm; stipules 5–12 mm; leaflets (9–)13–23, blades broadly elliptic to suborbiculate, 3–13 mm. |
Racemes | densely 12–32-flowered; axis 1.5–6 cm in fruit. |
Peduncles | scapiform, 4–10 cm. |
Flowers | calyx 10–15.3 mm, tube 6.6–8.5 × 3.2–5 mm, lobes 3.3–6.8 mm; corolla pink-purple; banner 16–21.5 mm; keel 12.5–14.5 mm. |
Legumes | ± straight to gently incurved, narrowly ovoid or lunately ellipsoid, 9–13 × 4.5–6 mm, densely villous-tomentose, hairs to 1.6–2.6 mm; beak bilocular. |
Seeds | 19–28. |
Astragalus mollissimus var. mogollonicus |
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Phenology | Flowering Apr–Jul. |
Habitat | Stony flats and hilltops, on pebbly, volcanic soils of open ponderosa pine forests, on limestone substrates, rocky knolls in pinyon-juniper belt. |
Elevation | 1800–2300 m. (5900–7500 ft.) |
Distribution |
AZ; NM |
Discussion | D. Isely (1998) viewed var. mogollonicus as a reduced phase of var. bigelovii, but var. mogollonicus is distinguished by its acaulescent growth habit and scapiform peduncles. It occurs from the Kaibab Plateau south of the Grand Canyon in Arizona to the southeast along the Mogollon Escarpment to western New Mexico. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 11. |
Parent taxa | |
Sibling taxa | |
Synonyms | A. mogollonicus, A. bigelovii var. mogollonicus |
Name authority | (Greene) Barneby: Mem. New York Bot. Gard. 13: 745. (1964) |
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