Oxytropis borealis var. sulphurea
Oxytropis borealis var. australis
Beringian locoweed, boreal locoweed
boreal locoweed
4–25 cm;
leaflets 19–35, blades 4–18 mm.
4–17 cm;
leaflets 17–27, blades thick and stiff, apex usually obtuse to rounded.
8–25-flowered, compact to loose.
usually 3–15-flowered, subcapitate to somewhat elongate.
4–20+ cm, axis often (2–)3–15 cm in fruit, pilose.
1–15 cm, longer than or subequal to leaves, axis 4.5–5 cm in fruit, pubescent.
white or bluish, keel tips maculate, 9–21 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.
6–9 mm, tube 5–7 mm, lobes 2–4 mm, prominently tuberculate.
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.
Oxytropis borealis var. sulphurea
Oxytropis borealis var. australis
There are many transitional forms between vars. sulphurea and viscida in the broad sense. The materials included here are plottable in the herbarium and notable in the field. Many of the plants are small-flowered (ca. 12 mm) and, consequently, have narrow racemes. Large-flowered phases are present and, in some, the bracts are very long, surpassing the flowers at anthesis.
(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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USDA Plants Database
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