Astragalus lancearius

A. Gray

Proc. Amer. Acad. Arts 13: 370. 1878.

Common names: Lancer milkvetch
Endemic
Synonyms: Astragalus episcopus var. lancearius (A. Gray) Isely
Treatment appears in FNA Volume 11.

Plants rushlike, 15–55 cm, stri­gose; from subterranean cau­dex. Stems erect or ascending, 2.5–10 cm under­ground, stri­gose. Leaves some or most reduced to phyllodia and con­tinuous with rachis, 1.5–10.5 cm; stipules distinct throughout, 2–7 mm, papery at proximal nodes, herbaceous at distal nodes; leaflets 0(or 3–7), blades linear to oblong, 2–14 mm, apex acute to obtuse, surfaces strigose; terminal leaflet decurrent distally, not jointed to rachis. Peduncles 4–23 cm. Racemes 6–25-flowered, flowers ascending; axis 3–19(–26) cm in fruit; bracts 1–1.5 mm; bracteoles 0–2. Pedicels 1–3 mm. Flowers 8.8–11.5 mm; calyx campanulate, 3.5–5.2 mm, black-strigose, tube 2.8–4.2 × 2.2–2.6 mm, lobes triangular, 0.5–1.2 mm; corolla pink-purple or tinged purplish or pinkish; banner recurved through 45°; keel 7.7–8.4 mm, apex obtuse to subacute, not beaklike. Legumes deflexed, brown or stramineous, slightly curved or straight, lanceoloid-oblong to oblong or lanceoloid-ellipsoid, laterally compressed, 20–35 × 5–9 mm, papery, glabrous or strigose; sessile or subsessile. Seeds 8–14.


Phenology: Flowering Apr–Jun.
Habitat: Sagebrush, Eriogonum, service­berry, blackbrush, and pinyon-juniper communities.
Elevation: 1200–1800 m.

Distribution

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Ariz., Utah.

Discussion

Astragalus lancearius has been included as a variety within the geographically contiguous A. episcopus, but the differences are as distinct as those of other relatives within sect. Lonchocarpi and subsect. Lancearii.

Selected References

None.

Lower Taxa

None.
... more about "Astragalus lancearius"
Stanley L. Welsh +
A. Gray +
Lancer milkvetch +
Ariz. +  and Utah. +
1200–1800 m. +
Sagebrush, Eriogonum, serviceberry, blackbrush, and pinyon-juniper communities. +
Flowering Apr–Jun. +
Proc. Amer. Acad. Arts +
Astragalus episcopus var. lancearius +
Astragalus lancearius +
Astragalus sect. Lonchocarpi +
species +