Flora of North America species comparison

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Oxytropis deflexa var. pulcherrima

Oxytropis deflexa var. foliolosa
Photo is of parent taxon

nodding locoweed
Photo is of parent taxon

foliose locoweed, foliose nodding locoweed, foliose oxytrope, nodding locoweed
Habit Plants caulescent, subacaulescent, or appearing acaulescent; herbage copiously and loosely villous-pilose or sericeous. Plants appearing acaulescent, sometimes with 1(or 2) developed internodes; herbage sparsely pilose.
Racemes

densely 10–20-flowered, hemispheric or subcapitate to shortly subcylindric, 20–27 mm wide when pressed, usually 1.5–6 cm in fruit, slightly elongate in fruit.

densely (2–)4–10-flowered, hemispheric or subcapitate to shortly subcylindric, slightly elongate in fruit, with more flowers.
Corollas

bright pink-purple or purple.

usually bright pink-purple or purple.
2n

= 16.

Oxytropis deflexa var. pulcherrima

Oxytropis deflexa var. foliolosa
Phenology Flowering summer. Flowering summer.
Habitat Alpine tundra, spruce-fir, and aspen communities, gravel, meadows. Tundra, conifer, aspen, birch, and alder communities, gravel bars, roadsides.
Elevation 500–4600 m. (1600–15100 ft.) 0–3700 m. (0–12100 ft.)
Distribution
from FNA
CO; UT
[BONAP county map]
from FNA
AK; ID; MT; NV; UT; WY; AB; BC; NB; NL; NT; NU; ON; QC; YT
[BONAP county map]
Discussion

Though usually appearing acaulescent in alpine and shore situations, plants of var. foliolosa frequently have one or two evident internodes in lower elevation habitats along stream systems. Specimens intermediate between this and var. sericea are not uncommon. Assignment of all specimens to one or the other of the varieties is not always possible. The Pan-Arctic Flora (http://panarcticflora.org/) treats var. foliolosa as Oxytropis deflexa subsp. dezhnevii (Jurtzev) Jurtzev.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 11. FNA vol. 11.
Parent taxa Fabaceae > subfam. Faboideae > Oxytropis > Oxytropis deflexa Fabaceae > subfam. Faboideae > Oxytropis > Oxytropis deflexa
Sibling taxa
O. deflexa var. foliolosa, O. deflexa var. sericea
O. deflexa var. pulcherrima, O. deflexa var. sericea
Synonyms Astragalus retroflexus O. foliolosa, Aragallus foliolosus, Astragalus deflexus var. foliolosus, O. deflexa subsp. foliolosa
Name authority S. L. Welsh & A. Huber: Great Basin Naturalist 55: 277. (1995) (Hooker) Barneby: Leafl. W. Bot. 6: 111. (1951)
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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