Astragalus mollissimus var. matthewsii |
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Matthews woolly locoweed, woolly locoweed |
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Habit | Plants acaulescent or subacaulescent. |
Stems | to 1.5 cm, obscured by imbricate stipules. |
Leaves | (3–)5–12 cm; stipules (3–)4–8 mm; leaflets 11–23, blades obovate, 3–12 mm. |
Racemes | (5–)7–12-flowered; axis (0.5–)1–4.5 cm in fruit, not or scarcely surpassing foliage. |
Peduncles | scapiform, (1.5–)2.5–8 cm. |
Flowers | calyx 10–13 mm, tube 7–8.6 × 3.4–4.7 mm, lobes 2.4–5.2 mm; corolla pale purple; banner 18.5–22.5 mm; keel 14.2–18 mm. |
Legumes | gently or abruptly incurved distally, broadly ovoid, turgid, 12–18 × 7–13 mm, widest near obtuse or truncate base, densely villous-tomentose; beak bilocular. |
Seeds | 24–31. |
Astragalus mollissimus var. matthewsii |
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Phenology | Flowering Apr–Jun. |
Habitat | Open slopes and hilltops, in ponderosa pine forests, along canyons to juniper-pinyon belt, on light, sandy or gravelly, sedimentary, granitic, or volcanic soils. |
Elevation | 1900–2600 m. (6200–8500 ft.) |
Distribution |
AZ; NM |
Discussion | Variety matthewsii is scattered and uncommon in Apache County in eastern Arizona and from Santa Fe to McKinley counties in the mountains of north-central and northwestern New Mexico. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 11. |
Parent taxa | |
Sibling taxa | |
Synonyms | A. matthewsii, A. bigelovii var. matthewsii |
Name authority | (S. Watson) Barneby: Mem. New York Bot. Gard. 13: 746. (1964) |
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