Oxytropis campestris var. jordalii |
Oxytropis campestris var. chartacea |
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jordal's field locoweed, jordal's locoweed, jordal's oxytrope |
field locoweed |
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Habit | Plants 5–12(–18) cm, herbage sparsely pilose, hairs subappressed. | Plants 4–86 cm, herbage silky-pilose, hairs subappressed, often loosely and copiously pilose. |
Leaves | 1.5–9 cm; stipules glabrous or strigose abaxially, margins ± ciliate, apex often bristly; leaflets 9–19, scattered or opposite, blades 1–11 mm. |
4–26 cm; stipules pilose, margins ciliate; leaflets 17–29, scattered, opposite, or subopposite, blades 3–29 mm. |
Racemes | usually 2–9-flowered, subcapitate or somewhat elongate. |
7–12(–14)-flowered. |
Peduncles | 3–12(–14) cm, axis 1–4.5 cm in fruit. |
erect, (4–)8–36 cm, axis 1.5–9(–11) cm in fruit. |
Corollas | whitish or yellowish, sometimes polychrome, 10–14(–15) mm. |
usually purple, rarely white, 12–18.5 mm. |
Calyces | tube (3.7–)4–5.5 mm, lobes 1–1.5 mm. |
tube 5–6 mm, lobes usually lanceolate, (1–)2–3 mm. |
Legumes | 9–12 × 3.5–5 mm. |
8–15 × 4–6 mm. |
2n | = 32. |
= 48. |
Oxytropis campestris var. jordalii |
Oxytropis campestris var. chartacea |
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Phenology | Flowering spring–summer. | Flowering summer. |
Habitat | Alpine tundra, heathlands, gravel bars, exposed ridges. | Sandy lake shores. |
Elevation | 10–1300 m. (0–4300 ft.) | 300–400 m. (1000–1300 ft.) |
Distribution |
AK; BC; NT; YT |
WI |
Discussion | Variety jordalii is transitional to vars. roaldii and varians. Data from J. L. Jorgensen et al. (2003) give some support to O. jordalii and O. varians as distinct species. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Variety chartacea is in the Center for Plant Conservation’s National Collection of Endangered Plants. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 11. | FNA vol. 11. |
Parent taxa | ||
Sibling taxa | ||
Synonyms | O. jordalii, O. campestris subsp. jordalii, O. leucantha subsp. jordalii | O. chartacea |
Name authority | (A. E. Porsild) S. L. Welsh: Leafl. W. Bot. 10: 25. (1963) | (Fassett) Barneby: Proc. Calif. Acad. Sci., ser. 4, 27: 269. (1952) |
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