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Key to families | Table of families and genera

Specimen numbers are hyperlinked to records in the Consortium of California Herbaria data view where possible. Taxa are hyperlinked to entries in the Jepson Interchange via the "[Online Interchange]" link.

 

A. purshii Douglas PURSH'S MILKVETCH
NATIVE
Perennial herb, sparsely to densely cespitose; herbage hairs generally 1–2.3 mm, fine, cottony, dense, tangled, silvery or gray. Stem: 0–14 cm. Leaf: 1–15 cm; leaflets 3–17, 2–20 mm, narrowly elliptic to ± round, tips blunt to notched. Inflorescence: ± among leaves; flowers 1–11, ascending. Flower: petals white, cream, pink-purple, or purple, banner 9–26 mm, recurved ± 40°, keel 8–21.2 mm. Fruit: ascending, 7–27 mm, 4–13 mm wide, ovate or widely lanceolate in side view, hairs generally dense, generally 1.5–5 mm, all ± wavy or all straight, white (fruit resembling a cotton ball); chambers 1 or 2. Locally and regionally variable. Like Astragalus newberryi var. newberryi (longer, ± straight, partly spreading hairs). [Online Interchange]

Key to Astragalus purshii

1. Calyx < 10 mm; fruit 7–17 mm

2. Fruit incurved at least 1/2 circle; ne Modoc Plateau ..... var. lagopinus

2' Fruit incurved near beak; High Sierra Nevada, San Bernardino Mountains, perhaps w edge East of Sierra Nevada ..... var. lectulus

1' Calyx > 10 mm; fruit 13–27 mm

3. Petals white or cream, tip pale lilac or not; inflorescence 1–6-flowered ..... var. purshii

3' Petals pink-purple or purple; inflorescence 3–11 flowered ..... var. tinctus

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Citation for the whole project: Jepson Flora Project (eds.) [year] Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html [accessed on month, day, year]
Citation for an individual treatment: [Author of taxon treatment] [year]. [Taxon name] in Jepson Flora Project (eds.) Jepson eFlora, [URL for treatment]. Accessed on [month, day, year].
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