Flora of North America species comparison

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Astragalus whitneyi var. lenophyllus
Photo is of parent taxon

balloonpod milkvetch, placer county milkvetch, Whitney's milk vetch, woolly-leaf milkvetch
Herbage

densely hirsutulous, hairs ascending or spreading, stiff, ± straight, 0.5–0.7 mm.
Stems

low, diffuse, 4–15(–20) cm.
Leaves

(1.5–)2–4 cm;

leaflets 9–17, blades 3–13 mm.
Racemes

5–9-flowered;

axis 0.5–2 cm in fruit.
Flowers

calyx 5.8–9 mm, tube 4.4–5.6 mm, lobes 1.2–1.8 mm, hirsutulous, hairs white or mixed black and white;

corolla ochroleucous;

banner (8.3–)10–14.2(–16.5) mm.
Legumes

obovoid, tapering to base, 15–35(–42) × 10–20(–25) mm, glabrous;

stipe 3–5(–7) mm.
Seeds

13–25.

Astragalus whitneyi var. lenophyllus
Phenology Flowering Jul–Aug.
Habitat Treeless summits and open, stony places in timber belt.
Elevation 2600–3100 m. (8500–10200 ft.)
Distribution
from FNA
CA
[BONAP county map]
Discussion

Variety lenophyllus is most common in open places along the crest of the Sierra Nevada in Placer and Nevada counties.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 11.
Parent taxa Fabaceae > subfam. Faboideae > Astragalus > sect. Cusickiani > Astragalus whitneyi
Sibling taxa
A. whitneyi var. confusus, A. whitneyi var. siskiyouensis, A. whitneyi var. sonneanus, A. whitneyi var. whitneyi
Synonyms Phaca lenophylla
Name authority (Rydberg) Barneby: Aliso 2: 205. (1950)
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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