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Photo is of parent taxon

Mogollon woolly locoweed, woolly locoweed

Photo is of parent taxon

Earle's woolly locoweed, woolly locoweed

Habit Plants acaulescent, usually dwarf. Plants subacaulescent or shortly caulescent.
Stems

reduced to thick crowns, closely invested with stipules.

to 10(–16) cm.

Leaves

(4–)6–16 cm;

stipules 5–12 mm;

leaflets (9–)13–23, blades broadly elliptic to suborbiculate, 3–13 mm.

8–32 cm;

stipules 5–15 mm;

leaflets 19–35, blades oblanceolate, rhombic-ovate, or rhombic-obovate, (5–)10–30(–45) mm.

Racemes

densely 12–32-flowered;

axis 1.5–6 cm in fruit.

15–36-flowered;

axis elongating, 4–15 cm in fruit.

Peduncles

scapiform, 4–10 cm.

(5–)8–17 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.

calyx (8.5–)8.8–10.5 mm, tube (4.5–)5–7 × 0.8–3(–3.2) mm, lobes 2.4–4 mm;

corolla pink-purple or yellowish tipped and suffused or margined with dull purple;

banner 12–17.5 mm;

keel 9–13 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.

± incurved, abruptly contracted distally, obliquely ovoid-ellipsoid or lanceoloid-ellipsoid, 9–14 × 4–6.5(–9) mm, usually sparsely villous-tomentulose or loosely strigulose, rarely glabrate or glabrous, hairs ascending and almost straight, or subappressed and curly, less than 1 mm;

beak bilocular.

Seeds

19–28.

20–30.

2n

= 22, 24.

Astragalus mollissimus var. mogollonicus

Astragalus mollissimus var. earlei

Phenology Flowering Apr–Jul. Flowering Mar–Jun.
Habitat Stony flats and hilltops, on pebbly, volcanic soils of open ponderosa pine forests, on limestone substrates, rocky knolls in pinyon-juniper belt. Dry hills and grassy plains, on volcanic and calcareous soils.
Elevation 1800–2300 m. (5900–7500 ft.) 1100–1800 m. (3600–5900 ft.)
Distribution
from FNA
AZ; NM
[BONAP county map]
from FNA
NM; TX; Mexico (Chihuahua)
[BONAP county map]
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.)

Within the flora area, var. earlei is a plant common in the trans-Pecos region of Texas and southeastern New Mexico.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source FNA vol. 11. FNA vol. 11.
Parent taxa Fabaceae > subfam. Faboideae > Astragalus > sect. Mollissimi > Astragalus mollissimus 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. marcidus, A. mollissimus var. matthewsii, A. mollissimus var. mollissimus, A. mollissimus var. thompsoniae
A. mollissimus var. bigelovii, A. mollissimus var. coryi, A. mollissimus var. marcidus, A. mollissimus var. matthewsii, A. mollissimus var. mogollonicus, A. mollissimus var. mollissimus, A. mollissimus var. thompsoniae
Synonyms A. mogollonicus, A. bigelovii var. mogollonicus A. earlei
Name authority (Greene) Barneby: Mem. New York Bot. Gard. 13: 745. (1964) (Greene ex Rydberg) Tidestrom: Proc. Biol. Soc. Wash. 48: 40. (1935)
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