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Leaves: blade usually unlobed, rarely pinnately lobed with few, small lateral lobes, terminal lobe narrowly ovate to ovate or, sometimes, elliptic, 1–5.5 × 0.5–3 cm, margins subentire, oil cells on abaxial surface inconspicuous, usually pale yellowish brown, rarely darker. Flowers: petals 1.7–5 mm. Capsules (10–)15–30 mm. 2n = 14, 28.

Phenology: Flowering Mar–May.
Habitat: Sandy or clay flats.
Elevation: 1200–2000(–2500) m.

Distribution

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• Legacy Map

Ariz., Colo., Nev., N.Mex., Oreg., Utah, Wyo.

Discussion

Subspecies scapoidea is known from western Wyo­ming, west to Lake County, Oregon, and Elko and White Pine counties, Nevada, south to Beaver County, Utah, northern Coconino, Navajo, and Apache counties, Arizona, Sandoval and San Juan counties, New Mex­ico, and western Colorado; also on the headwaters of the Arkansas River in eastern Colorado (Fremont and Pueblo counties). It is the only member of sect. Chylismia that occurs east of the Continental Divide.

Selected References

None.

Lower Taxa

None.