Eremogone ursina

(B. L. Robinson) Ikonnikov

Novosti Syst. Vyssh. Rast. 10: 140. 1973.

Common names: Bear Valley sandwort
EndemicConservation concern
Basionym: Arenaria ursina B. L. Robinson Proc. Amer. Acad. Arts 29: 294. 1894
Treatment appears in FNA Volume 5. Treatment on page 70. Mentioned on page 58.

Plants tufted, green, not glaucous, with somewhat woody base. Stems ascending to erect, 10–18 cm, often glandular-hairy. Leaves: basal leaves persistent; cauline leaves in 3–5 pairs, reduced distally; basal blades erect to ± spreading, needlelike, 0.5–1.1(–1.6) cm × 0.5–0.7 mm, rigid, herbaceous, not fleshy, apex blunt to apiculate, glabrous, ± glaucous. Inflorescences (1–)3–7-flowered, ± open cymes. Pedicels 0.3–2 mm, stipitate-glandular. Flowers: sepals 1–3-veined, lateral veins less developed, ovate, often broadly so, 1.8–3 mm, to 4.2 mm in fruit, margins broad, apex obtuse or rounded, glabrous; petals white, elliptic to oblanceolate, 2–4.5 mm, 1.4–1.6 times as long as sepals, apex rounded; nectaries as lateral and abaxial rounding of base of filaments opposite sepals, with terminal lateral groove, 0.3 mm. Capsules 4.5–6 mm, glabrous. Seeds blackish purple, suborbicular to broadly ellipsoid with hilar notch, 2.2–2.5(–3) mm, tuberculate; tubercles rounded, elongate.


Phenology: Flowering late spring–summer.
Habitat: Pinyon-juniper woodlands on rocky (quartzite) soils
Elevation: 1900-2100 m

Discussion

Of conservation concern.

Eremogone ursina is known from four counties in southern California, where it is threatened by development. It is relatively distinctive in appearance and markedly separated spatially from congeners.

Selected References

None.

Lower Taxa

None.
... more about "Eremogone ursina"
Ronald L. Hartman +, Richard K. Rabeler +  and Frederick H. Utech +
(B. L. Robinson) Ikonnikov +
Arenaria ursina +
Bear Valley sandwort +
1900-2100 m +
Pinyon-juniper woodlands on rocky (quartzite) soils +
Flowering late spring–summer. +
Novosti Syst. Vyssh. Rast. +
Endemic +  and Conservation concern +
Eremogone ursina +
Eremogone +
species +