Eremogone pumicola |
Eremogone |
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Crater Lake sandwort, pumice sandwort |
sandwort |
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Habit | Plants tufted, green. | Plants perennial. |
Stems | 10–20 cm, glandular-hairy. |
prostrate (non-flowering) or ascending to erect (flowering), sometimes mat-forming. |
Leaves | basal ascending to somewhat spreading, flexuous, recurving in multiple directions, 15–35 mm, generally fleshy; tips blunt to apiculate; cauline (2)3–5 pairs, not closely overlapping, not reduced above |
opposite; needle-like to narrowly linear, often congested at or near bases of flowering stems; tips sharp pointed; petioles 0; stipules 0. |
Inflorescences | terminal; open or congested cymes; bracts present. |
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Flowers | sepals 3–3.8 mm, 4–4.5 mm in fruit; tips obtuse or rounded; petals 2–4.5 mm. |
bisexual; sepals 5; ± free, glabrous to glandular-hairy; petals 5, white; tips entire or slightly notched; stamens 10; borne on hypanthium; staminodes 0; ovary sutures 6; styles 3. |
Fruits | 4.5–5.5 mm; valves glabrous. |
capsules; ovoid to urceolate, opening by 6 ascending to recurved teeth. |
Seeds | oblong to pyriform, 1.8–2.4 mm; smooth to tuberculate. |
1–10, elliptic-ovoid, oblong, or sometimes spherical, 1.2–3(3.2) mm; grayish, brown; yellowish brown, or blackish; smooth to tuberculate. |
. inflorescences | open; flowers 7–40+; pedicels 3–20 mm, glandular-hairy. |
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Eremogone pumicola |
Eremogone |
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Distribution | ||
Discussion | Rocky flats, talus slopes, pumice soils, coniferous forests. Flowering May–Sep. 1300–2400 m. Casc, Sisk. Native. Endemic to Oregon. Eremogone pumicola is endemic to Oregon. |
North temperate regions, especially in Asia, Europe, and western North America. ~95 species; 6 species treated in Flora. |
Source | Flora of Oregon, volume 2, page 553 Rich Rabeler, Ronald Hartman |
Flora of Oregon, volume 2, page 551 Rich Rabeler, Ronald Hartman |
Sibling taxa | ||
Subordinate taxa | ||
Synonyms | Arenaria pumicola | |
Web links |
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