Flora of North America species comparison

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Astragalus serenoi var. serenoi

Astragalus serenoi var. shockleyi
Photo is of parent taxon

naked milkvetch
Photo is of parent taxon

naked milk vetch, Shockley's milkvetch
Stems

20–45 cm.

20–45(–53) cm.
Leaves

5–15 cm.

5–11(–15) cm.
Racemes

(3–)7–25-flowered;

axis (2–)5–20 cm in fruit.

(3–)9–16-flowered;

axis (2–)5–15 cm in fruit.
Peduncles

(7–)10–25 cm.

9–18 cm.
Corollas

purple, petals strongly graduated;

banner 17–26 mm.

purple, petals strongly graduated;

banner 17–20 mm.
Legumes

plumply oblong, straight or slightly incurved, 17–31 × 7–10.5(–12) mm, unilocular.

plumply oblong, straight or slightly incurved 17–31 × 5–12 mm, semibilocular, septum 2–4 mm wide.
2n

= 22.

Astragalus serenoi var. serenoi

Astragalus serenoi var. shockleyi
Phenology Flowering May–Jul. Flowering May–Jun.
Habitat Sagebrush and pinyon-juniper communities. Tuff and gravel to clay washes.
Elevation 1100–2300 m. (3600–7500 ft.) 1400–2000 m. (4600–6600 ft.)
Distribution
from FNA
NV
[BONAP county map]
from FNA
CA; NV
[BONAP county map]
Discussion

Variety serenoi occurs from northcentral Humboldt County southward to Churchill and adjacent Lander and northwestern Nye counties.

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

Variety shockleyi is known from Lyon and Mineral counties, western Nevada, to Inyo and Mono counties in eastern California.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 11. FNA vol. 11.
Parent taxa Fabaceae > subfam. Faboideae > Astragalus > sect. Nudi > Astragalus serenoi Fabaceae > subfam. Faboideae > Astragalus > sect. Nudi > Astragalus serenoi
Sibling taxa
A. serenoi var. shockleyi, A. serenoi var. sordescens
A. serenoi var. serenoi, A. serenoi var. sordescens
Synonyms A. shockleyi
Name authority unknown (M. E. Jones) Barneby: Brittonia 36: 168. (1984)
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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