Astragalus whitneyi |
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balloon milkvetch, balloonpod milkvetch |
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Habit | Plants perennial, caulescent, strigillose, hairs basifixed. |
Stems | several–numerous, decumbent to erect, 2–40 cm. |
Leaves | 1–10 cm; leaflets (5)9–21, oblong-oblanceolate, elliptic, or narrowly obovate, 2–21 × 1–5 mm; tips obtuse to acute; surfaces abaxially strigillose, adaxially strigose, glabrate, or glabrous; stipules 1–5 mm; at least lowermost connate-sheathing. |
Inflorescences | racemes loosely 3–16-flowered; peduncles 1–9.5(12) cm; bracts 1–3 mm; pedicels 0.5–2.5 mm; bracteoles usually 0. |
Flowers | declined at anthesis; calyces 4–9.3 mm, strigillose with white and black hairs; tubes 3.5–5.9 mm; teeth triangular, 0.5–3.6 mm; corollas 8.3–17.2 mm, ochroleucous; pinkish white; lilac, or pink-purple; ovules (13)15–30(32). |
Fruits | unilocular, pendulous; bladdery inflated, obovoid to ellipsoid, 15–60(75) × (8)10–25(35) mm, usually red- or purple-mottled, glabrous or strigillose; valves membranous; stipes 2–9 mm. |
Astragalus whitneyi |
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Distribution | |
Discussion | Western United States. 5 varieties; 3 varieties treated in Flora. |
Source | Flora of Oregon, volume 2, page 677 Richard Halse |
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Web links |