Eriogonum kingii

Torrey & A. Gray

Proc. Amer. Acad. Arts 8: 165. 1870.

Common names: Ruby Mountains wild buckwheat
Endemic
Treatment appears in FNA Volume 5. Treatment on page 281. Mentioned on page 233.

Herbs, matted, scapose, 0.2–1.5 × 0.5–4 dm, tomentose or floccose to subglabrous, greenish or grayish. Stems matted, with persistent leaf bases, up to 1/5 height of plant; caudex stems matted; aerial flowering stems scapelike, erect, slender, solid, not fistulose, 0.2–1(–1.5) dm, tomen-tose or floccose to subglabrous or even glabrous. Leaves basal, fasciculate in terminal tufts; petiole (0.2–)0.4–2(–3) cm, tomentose; blade oblanceolate to spatulate or elliptic, 0.5–1.5(–2) × (0.2–)0.3–0.8(–1) cm, densely white- or greenish-tomentose on both surfaces, margins plane. Inflorescences capitate, 0.8–1.7(–2) cm; branches absent; bracts 3–5, linear to narrowly scalelike, triangular, 1.5–3 mm. Peduncles absent. Involucres 3–5 per cluster, turbinate-campanulate to campanulate, 2.5–3.5 × 2.5–4 mm, membranous, sparsely pubescent or rarely sparsely glandular abaxially; teeth 5–6, erect to spreading, 0.7–1.8(–2) mm. Flowers (2.5–)3–3.5 mm; perianth greenish yellow or pale yellow, rarely yellow, glabrous or sparsely glandular abaxially; tepals connate proximal 1/4–1/2, monomorphic, spatulate to obovate; stamens exserted, 2–3.5 mm; filaments glabrous or sparsely pilose proximally. Achenes light brown, 2.5–3 mm, glabrous except for slightly papillate beak in some. 2n = 40.


Phenology: Flowering Jun–Sep.
Habitat: Limestone or granitic gravelly slopes and ridges, mixed grassland and sagebrush communities, pinyon-juniper and subalpine conifer woodlands
Elevation: 1600-3300 m

Discussion

Eriogonum kingii is known only from Elko and northern White Pine counties. It is occasionally cultivated in rock gardens.

Selected References

None.

Lower Taxa

None.
... more about "Eriogonum kingii"
James L. Reveal +
Torrey & A. Gray +
Undefined subg. Eucycla +
Ruby Mountains wild buckwheat +
1600-3300 m +
Limestone or granitic gravelly slopes and ridges, mixed grassland and sagebrush communities, pinyon-juniper and subalpine conifer woodlands +
Flowering Jun–Sep. +
Proc. Amer. Acad. Arts +
Eriogonum kingii +
Eriogonum subg. Eucycla +
species +