Flora of North America species comparison

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Astragalus mollissimus var. marcidus
Photo is of parent taxon

Davis Mountains locoweed, woolly locoweed
Habit Plants acaulescent or subacaulescent.
Stems

reduced to crowns.
Leaves

5–15 cm;

leaflets 15–19(or 21), blades ovate, obovate, or broadly elliptic, 4–15(–20) mm.
Racemes

10–45-flowered;

axis 3–10 cm in fruit.
Peduncles

3.5–11 cm.
Flowers

calyx 6.8–9.9 mm, tube 5.2–6.4 × 2.8–3.5 mm, lobes 1.6–3.5 mm;

corolla pink-purple;

banner 11.8–16.3;

keel 10.3–12.5 mm.
Legumes

ovoid-acuminate to lanceolate-ellipsoid, usually solid, rarely slightly turgid, 6–10 × 3–5 mm, villous-hirsute, hairs 1+ mm;

beak bilocular.
Seeds

12–16.

Astragalus mollissimus var. marcidus
Phenology Flowering Apr–Jul.
Habitat Open gravelly hillsides and rocky stream beds, on volcanic soils.
Elevation 1500–2000 m. (4900–6600 ft.)
Distribution
from FNA
TX
[BONAP county map]
Discussion

Variety marcidus is known from Jeff Davis and Presidio counties of the trans-Pecos region.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 11.
Parent taxa Fabaceae > subfam. Faboideae > Astragalus > sect. Mollissimi > Astragalus mollissimus
Sibling taxa
A. mollissimus var. bigelovii, A. mollissimus var. coryi, A. mollissimus var. earlei, A. mollissimus var. matthewsii, A. mollissimus var. mogollonicus, A. mollissimus var. mollissimus, A. mollissimus var. thompsoniae
Synonyms A. marcidus, A. bigelovii var. marcidus
Name authority (Greene ex Rydberg) Barneby: Mem. New York Bot. Gard. 13: 743. (1964)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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