Flora of North America species comparison

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Oxytropis borealis var. hudsonica
Photo is of parent taxon

Hudson bay locoweed
Habit Plants usually to 8(–15) cm.
Leaves

mostly 1.5–8 cm;

leaflets 19–33, blades 1.5–6 mm.
Racemes

densely 3–6(–16)-flowered, subcapitate to short-spicate.
Peduncles

2.5–7 cm, axis to 1 cm in fruit, sparsely villous-pilose.
Corollas

purplish, 11–16 mm;

wing blades not especially dilated distally.
Calyces

7.5–8 mm, tube 6–6.5 mm, lobes 1–1.5 mm, not or obscurely verrucose.
Legumes

8–15 × 5–7 mm.
2n

= 16.

Oxytropis borealis var. hudsonica
Phenology Flowering summer.
Habitat Arctic and subarctic shores.
Elevation 100–400 m. (300–1300 ft.)
Distribution
from FNA
NT; NU; ON; QC; YT
[BONAP county map]
Discussion

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.)
Source FNA vol. 11.
Parent taxa Fabaceae > subfam. Faboideae > Oxytropis > Oxytropis borealis
Sibling taxa
O. borealis var. australis, O. borealis var. borealis, O. borealis var. sulphurea, O. borealis var. viscida
Synonyms Aragallus hudsonicus, O. hudsonica, O. leucantha var. hudsonica, O. leucantha var. leuchippiana, O. verruculosa, O. viscida subsp. hudsonica, O. viscida var. hudsonica
Name authority (Greene) S. L. Welsh: Great Basin Naturalist 50: 357. (1991)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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