Eriogonum soredium

Reveal

Great Basin Naturalist 41: 229, fig. 1. 1981.

Common names: Frisco wild buckwheat
EndemicConservation concern
Treatment appears in FNA Volume 5. Treatment on page 278. Mentioned on page 234, 279.

Herbs, matted, scapose, 0.01–0.1 × 1–3 dm, densely white-tomentose, whitish. 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, 0.02–0.15 dm, tomentose. Leaves basal, fasciculate and sheathing nearly entire length of stem; petiole 0.05–0.2(–0.3) cm, tomentose; blade narrowly elliptic to narrowly oblong, 0.2–0.7 × (0.07–)0.1–0.25 cm, densely white-tomentose, margins plane. Inflorescences capitate, 0.5–1 cm; branches absent; bracts 6–8, scalelike, lanceolate to narrowly triangular, 1.3–1.6 mm. Peduncles absent. Involucres 4–6 per cluster, turbinate, 2–2.5 × 1.3–1.5 mm, rigid; teeth (4–)5, erect, 0.5–0.6 mm. Flowers (1.5–)2–2.5 mm; perianth white, glabrous; tepals connate proximal 1/4, slightly dimorphic, oblanceolate to ovate or obovate, those of outer whorl 1.5–2 mm wide, those of inner whorl 1–1.5 mm wide; stamens included, 2–2.5 mm; filaments sparsely pubescent proximally. Achenes light brown, 2–2.5 mm, glabrous.


Phenology: Flowering Jun–Sep.
Habitat: Gravelly to rocky limestone slopes, mixed saltbush and sagebrush communities, pinyon-juniper woodlands
Elevation: 2000-2300 m

Discussion

Of conservation concern.

Eriogonum soredium is a rare and localized species known only from the San Francisco Mountains of Beaver County. It is considered a “sensitive” species in Utah, and occasionally is seen in cultivation.

Selected References

None.

Lower Taxa

None.
... more about "Eriogonum soredium"
James L. Reveal +
Reveal +
Undefined subg. Eucycla +
Frisco wild buckwheat +
2000-2300 m +
Gravelly to rocky limestone slopes, mixed saltbush and sagebrush communities, pinyon-juniper woodlands +
Flowering Jun–Sep. +
Great Basin Naturalist +
Endemic +  and Conservation concern +
Eriogonum soredium +
Eriogonum subg. Eucycla +
species +