Oxytropis borealis var. hudsonica
Oxytropis borealis var. australis
Hudson bay locoweed
boreal locoweed
mostly 1.5–8 cm;
leaflets 19–33, blades 1.5–6 mm.
4–17 cm;
leaflets 17–27, blades thick and stiff, apex usually obtuse to rounded.
densely 3–6(–16)-flowered, subcapitate to short-spicate.
usually 3–15-flowered, subcapitate to somewhat elongate.
2.5–7 cm, axis to 1 cm in fruit, sparsely villous-pilose.
1–15 cm, longer than or subequal to leaves, axis 4.5–5 cm in fruit, pubescent.
purplish, 11–16 mm;
wing blades not especially dilated distally.
usually white or ochroleucous, keel tips maculate or not, rarely fading bluish, 15–18 mm;
wing blades not especially dilated distally.
7.5–8 mm, tube 6–6.5 mm, lobes 1–1.5 mm, not or obscurely verrucose.
5–7 mm, tube 3–4 mm, lobes 1–3 mm, prominently tuberculate.
8–15 × 5–7 mm.
erect-ascending, 12–16 × 4–6 mm.
= 16.
Oxytropis borealis var. hudsonica
Oxytropis borealis var. australis
Variety hudsonica is closely allied to, and transitional with, var. viscida, from which it differs mainly in the usually smaller size, relatively short calyx lobes, and less marked glandularity. None of these characters is definitive in all instances, either alone or in combination.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Variety australis is restricted to Emery, Sevier, and Wayne counties, Utah, Elko and Nye counties, Nevada, and Inyo and Mono counties, California.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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CA
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