Flora of North America species comparison

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Astragalus serenoi var. serenoi

Astragalus serenoi var. sordescens
Photo is of parent taxon

naked milkvetch
Photo is of parent taxon

dirtyish milkvetch, naked milkvetch
Stems

20–45 cm.

15–30 cm.
Leaves

5–15 cm.

2–10 cm.
Racemes

(3–)7–25-flowered;

axis (2–)5–20 cm in fruit.

5–15-flowered;

axis 2–7(–10) cm in fruit.
Peduncles

(7–)10–25 cm.

3–10 cm.
Corollas

purple, petals strongly graduated;

banner 17–26 mm.

ochroleucous and margined or tinged lavender, petals not especially graduated;

banner 14.5–16 mm.
Legumes

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

obliquely ovoid, slightly incurved, 15–22 × 5–7 mm, unilocular or subunilocular, septum 0–1 mm wide.
2n

= 22.

Astragalus serenoi var. serenoi

Astragalus serenoi var. sordescens
Phenology Flowering May–Jul. Flowering May–Jul.
Habitat Sagebrush and pinyon-juniper communities. Gentle slopes and flats among, and often sheltering under or scrambling up through, low sagebrush.
Elevation 1100–2300 m. (3600–7500 ft.) 1500–2100 m. (4900–6900 ft.)
Distribution
from FNA
NV
[BONAP county map]
from FNA
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 sordescens is known from Esmeralda and Nye counties.

(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. shockleyi
Name authority unknown Barneby: Leafl. W. Bot. 7: 195. (1954)
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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