Flora of North America species comparison

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Astragalus convallarius var. convallarius
Photo is of parent taxon

lesser rushy milkvetch
Stems

(10–)20–50(–70) cm.
Leaflets

0 or 3–11, blades 2–25(–33) mm.
Pedicels

1–5 mm.
Flowers

8–11 mm;

calyx 4.2–6 mm, tube 3.4–4.8 mm, lobes 0.4–1.4 mm.
Legumes

linear, 25–50(–53) × 2.5–3.3(–4.2) mm, length 8–18 times width, gradually or abruptly contracted to ± symmetric apex.
Seeds

13–20.
Bracteoles

0.

Astragalus convallarius var. convallarius
Phenology Flowering May–Aug.
Habitat Mixed desert shrub, sagebrush, pinyon-juniper, mountain brush, ponderosa pine, and aspen communities.
Elevation (1200–)1400–2900 m. ((3900–)4600–9500 ft.)
Distribution
from FNA
AZ; CO; ID; MT; NV; UT; WY
[BONAP county map]
Discussion

Variety convallarius demonstrates considerable variability in presence or absence of leaflets, length of fruits, shape and length of calyx-lobes, pubescence coloration in the inflorescences, and degree of development of the stipelike bases of the fruits. Various combinations of these features in the past have resulted in recognition of several taxa. R. C. Barneby (1947c) detailed and summarized variation in the complex.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 11.
Parent taxa Fabaceae > subfam. Faboideae > Astragalus > sect. Genistoidei > Astragalus convallarius
Sibling taxa
A. convallarius var. finitimus, A. convallarius var. margaretiae, A. convallarius var. scopulorum
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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