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jordal's field locoweed, jordal's locoweed, jordal's oxytrope

Habit Plants 5–12(–18) cm, herbage sparsely pilose, hairs subappressed.
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.

Racemes

usually 2–9-flowered, subcapitate or somewhat elongate.

Peduncles

3–12(–14) cm, axis 1–4.5 cm in fruit.

Corollas

whitish or yellowish, sometimes polychrome, 10–14(–15) mm.

Calyces

tube (3.7–)4–5.5 mm, lobes 1–1.5 mm.

Legumes

9–12 × 3.5–5 mm.

2n

= 32.

Oxytropis campestris var. jordalii

Phenology Flowering spring–summer.
Habitat Alpine tundra, heathlands, gravel bars, exposed ridges.
Elevation 10–1300 m. (0–4300 ft.)
Distribution
from FNA
AK; BC; NT; YT
[BONAP county map]
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.)

Source FNA vol. 11.
Parent taxa Fabaceae > subfam. Faboideae > Oxytropis > Oxytropis campestris
Sibling taxa
O. campestris var. chartacea, O. campestris var. columbiana, O. campestris var. cusickii, O. campestris var. davisii, O. campestris var. dispar, O. campestris var. johannensis, O. campestris var. minor, O. campestris var. roaldii, O. campestris var. spicata, O. campestris var. varians, O. campestris var. wanapum
Synonyms O. jordalii, O. campestris subsp. jordalii, O. leucantha subsp. jordalii
Name authority (A. E. Porsild) S. L. Welsh: Leafl. W. Bot. 10: 25. (1963)
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