Album Caption: Astragalus aculeatus A. Nels. Family : Pea, Legnminosae. Subgenus: Kentrophyta. Flowers : Irregular, small purple pea-shaped flowers about 4 mm long, in axils of leaves, Blooms in July. Leaves : Pinnate, with 5 stiff spine-tipped leaflets 1/2 inch long. Fruit : Pods with 2 prominent sutures 1-celled, ovoid, 1/8 inch long. Plant : Perennial, with strong taproot, branches sprawling or erect, so densely covered with prickly leaves as to appear clublike. Published in U.S.Geological Survey Bulletin 1030-M, figure 94. 1957.
Summary
Album Caption:
Astragalus aculeatus A. Nels. Family : Pea, Legnminosae. Subgenus: Kentrophyta. Flowers : Irregular, small purple pea-shaped flowers about 4 mm long, in axils of leaves, Blooms in July. Leaves : Pinnate, with 5 stiff spine-tipped leaflets 1/2 inch long. Fruit : Pods with 2 prominent sutures 1-celled, ovoid, 1/8 inch long. Plant : Perennial, with strong taproot, branches sprawling or erect, so densely covered with prickly leaves as to appear clublike.
Published in U.S.Geological Survey Bulletin 1030-M, figure 94. 1957.
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