Flora of North America species comparison

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Oxytropis sericea var. speciosa
Photo is of parent taxon

pretty oxtrope, pretty oxytrope, pretty silky locoweed, white locoweed
Habit Plants 8–36 cm.
Leaves

6–18 cm;

stipules densely pilose to villous, or glabrate abaxially;

leaflets 7–17(–21).
Racemes

5–17-flowered.
Peduncles

8–29 cm, axis often compact, 3–12 cm in fruit.
Corollas

whitish or yellowish, fading yellowish, 17–22 mm, keel tip not maculate.
Calyces

7–10.5 mm, tube 6.5–7.5 mm, lobes 2–3 mm.
Legumes

16–24 × 4.5–6 mm.
2n

= 48.

Oxytropis sericea var. speciosa
Phenology Flowering spring–early summer.
Habitat Gravelly and sandy bluffs, roadsides, stream gravel, plains, prairies, boreal forests.
Elevation 700–3400 m. (2300–11200 ft.)
Distribution
from FNA
ID; MT; WY; AB; BC; MB; SK; YT
[BONAP county map]
Discussion

Variety speciosa forms apparent hybrids with Oxytropis campestris var. davisii in northern British Columbia; exceptionally large-flowered plants traditionally placed with O. campestris var. cusickii may be little more than alpine disjuncts of var. speciosa. See also the discussion under 15d. O. campestris var. spicata.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 11.
Parent taxa Fabaceae > subfam. Faboideae > Oxytropis > Oxytropis sericea
Sibling taxa
O. sericea var. sericea
Synonyms O. campestris var. speciosa
Name authority (Torrey & A. Gray) S. L. Welsh: Great Basin Naturalist 55: 279. (1995)
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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