Lepidium ostleri

S. L. Welsh & Goodrich

Great Basin Naturalist 40: 80, fig. 3. 1980.

IllustratedEndemicConservation concern
Treatment appears in FNA Volume 7. Treatment on page 589. Mentioned on page 573.

Perennials; (pulvinate, caudex woody, many-branched, covered with persistent petiolar remains); densely (grayish) puberulent. Stems simple from base (caudex branch), erect to ascending, unbranched distally, (0.1–)0.3–0.8 dm. Basal leaves not rosulate; petiole often undifferentiated, (expanded base to 2 mm); blade (somewhat fleshy), linear to linear-oblanceolate (when margins entire), or spatulate in outline (when apically 3–5-lobed, lobes obovate to oblong), 3–12(–15) cm × 5–15 mm, margins entire. Cauline leaves sessile; similar to basal, smaller, base not auriculate. Racemes slightly elongated in fruit; rachis puberulent, trichomes straight or curved, cylindrical. Fruiting pedicels divaricate-ascending to subhorizontal, straight or slightly curved, (not winged), (2.5–)3–5(–6.5) × 04–0.5 mm, densely puberulent throughout. Flowers: sepals orbicular to broadly obovate, 1.5–2(–2.5) × 1–1.5(–2) mm; petals white to pale purple, suborbicular to obovate, 2–3.5 × 1.5–2.5(–2.8) mm, claw to 0.5 mm; stamens 6; filaments 1.5–1.8 mm, (glabrous); anthers 0.3–0.5 mm. Fruits ovate, 2.5–3.5(–4) × 2–2.5(–3) mm, apically winged, apical notch 0.05–0.2 mm deep; valves thin, smooth, not veined, glabrous; style 0.3–0.6 mm, exserted beyond apical notch. Seeds ovate, 1.2–1.5 × 0.9–1.1 mm.


Phenology: Flowering May–Jun.
Habitat: White limestone outcrops and gravel, pinyon-juniper, sagebrush, or pine communities
Elevation: 1700-2100 m

Discussion

Of conservation concern.

Lepidium ostleri is known only from the San Francisco Mountains in Beaver County.

Selected References

None.

Lower Taxa

None.
... more about "Lepidium ostleri"
Ihsan A. Al-Shehbaz +  and John F. Gaskin +
S. L. Welsh & Goodrich +
1700-2100 m +
White limestone outcrops and gravel, pinyon-juniper, sagebrush, or pine communities +
Flowering May–Jun. +
Great Basin Naturalist +
Illustrated +, Endemic +  and Conservation concern +
Carara +, Cardaria +, Coronopus +, Neolepia +, Physolepidion +, Senebiera +, Sprengeria +  and Stroganowia +
Lepidium ostleri +
Lepidium +
species +