Flora of North America species comparison

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Astragalus pachypus var. pachypus
Photo is of parent taxon

bush milkvetch, thick pod milk vetch
Leaflets

11–19(or 21).
Pedicels

(1–)1.5–3 mm, (1.5–)2–5.5 mm in fruit.
Flowers

calyx tube 4.3–5 mm wide, lobes (1.5–)2.7–4.3 mm;

corolla usually white or faintly lavender, rarely suffused with pink or lilac, drying yellowish;

banner 17–22 × 9–14.5 mm;

keel 12.3–15.3 mm;

wings 14.3–18 mm, claws 5.4–7 mm, blades 7.7–10.3 × 3.4–4.2 mm.
2n

= 22.

Astragalus pachypus var. pachypus
Phenology Flowering Mar–Jul.
Habitat Gravely clay, shale, sandstone, or granitic substrates.
Elevation 500–2000 m. (1600–6600 ft.)
Distribution
from FNA
CA
[BONAP county map]
Discussion

Around the head of the San Joaquin Valley, fruits of var. pachypus are relatively broad, approximately 5–7.5 mm diam.; northward, in San Benito County, fruits are 4–5 mm diam. Plants do not seem to differ significantly in other ways.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 11.
Parent taxa Fabaceae > subfam. Faboideae > Astragalus > sect. Pachypodes > Astragalus pachypus
Sibling taxa
A. pachypus var. jaegeri
Name authority unknown
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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