Flora of North America species comparison

The green links below add additional plants to the comparison table. Blue links lead to other Web sites.
enable glossary links

Oxytropis borealis var. viscida
Photo is of parent taxon

boreal locoweed, Nuttall's oxytrope, oxytrope visqueux, sticky boreal crazyweed, sticky boreal locoweed, sticky crazyweed, sticky oxytrope, sticky oxytropis, viscid locoweed
Habit Plants usually 8–26+ cm, glandular.
Leaves

2–21 cm;

leaflets (19–)25–39+.
Racemes

3–19+-flowered, subcapitate to elongate.
Peduncles

4–27 cm, often some surpassing leaves, axis often (1.5–)4–19 cm in fruit, pubescent.
Corollas

pink-purple, lilac, whitish, or yellowish, keel tips maculate or not, 11–16 mm;

wing blades not especially dilated distally.
Calyces

7–10.5 mm, tube 4–7 mm, lobes (1–)1.5–3.5(–4.5) mm, prominently tuberculate.
Legumes

(8–)12–21(–30) × (4–)5–7 mm.

Oxytropis borealis var. viscida
Phenology Flowering spring–summer.
Habitat Gravel bars, roadsides, ridge crests, talus slopes, pinyon-juniper slopes, sage­brush, boreal forest, tundra communities.
Elevation 0–3900 m. (0–12800 ft.)
Distribution
from FNA
AK; CA; CO; ID; MN; MT; NV; OR; UT; WA; WY; AB; BC; NT; NU; ON; QC; YT
[BONAP county map]
Discussion

Variety viscida is quite variable, with numerous subunits held together by tenuous characteristics that are difficult to define or place in a key. Variation is often great in populations from adjacent hillsides or on a single gravel bar, especially in the Arctic. Dwarf plants far removed from the range of var. hudsonica are similar to that entity; the inflorescences become capitate, and the calyx lobes are often relatively very short. Further study might reveal the need for additional segregation. The Pan-Arctic Flora (http://panarcticflora.org/) recognizes O. glutinosa and O. viscida as distinct species.

(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. hudsonica, O. borealis var. sulphurea
Synonyms O. viscida, Aragallus viscidus, Astragalus viscidus, O. campestris var. viscida, O. gaspensis, O. glutinosa, O. ixodes, O. leucantha var. depressa, O. leucantha var. gaspensis, O. leucantha var. ixodes, O. leucantha var. magnifica, O. leucantha var. viscida, O. sheldonensis, O. viscidula, Spiesia viscida
Name authority (Nuttall) S. L. Welsh: Great Basin Naturalist 50: 358. (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).



Type/paste one or more Latin names into the boxes above; matching taxa will show up below the box as you type. You can use the up/down arrow keys to move through the list.

(If the plant you're looking for doesn't show up in the auto-complete list, that means it either isn't described in Flora of North America yet, or it's listed under a synonym. And please note that Flora of North America is still missing several plant families, including Apiaceae, Boraginaceae, and Polemoniaceae.)

Choose a data source: Flora of North America, OregonFlora, UW Burke Herbarium

The species comparison tool is brought to you by:
Northwest Wildflowers