Difference between revisions of "Eriogonum umbellatum var. hypoleium"

(Piper) C. L. Hitchcock in C. L. Hitchcock et al.

in C. L. Hitchcock et al., Vasc. Pl. Pacif. N.W. 2: 135. 1964.

Common names: Kittitas sulphur flower
Basionym: Eriogonum umbellatum subsp. hypoleium Piper Contr. U.S. Natl. Herb. 11: 238. 1906
Treatment appears in FNA Volume 5. Treatment on page 341. Mentioned on page 339.
FNA>Volume Importer
FNA>Volume Importer
(No difference)

Revision as of 21:09, 24 September 2019

Herbs, mostly prostrate, compact mats, 1–2.5 × 2–5 dm. Aerial flowering stems erect, 0.7–1.5(–2) dm, thinly floccose or glabrous, without one or more leaflike bracts ca. midlength. Leaves in loose rosettes; blade usually elliptic, (0.5–)1–2 × (0.4–)0.5–1.5 cm, glabrous on both surfaces except for fringed, pubescent margins and veins, margins plane, pubescent. Inflorescences umbellate; branches 1–2(–3) cm, without a whorl of bracts ca. midlength; involucral tubes 2–4 mm, lobes 2–4 mm. Flowers 4–6 mm; perianth bright yellow.


Phenology: Flowering Jun–Sep.
Habitat: Gravelly to rocky slopes and ridges, high-elevation sagebrush communities, montane to subalpine conifer woodlands
Elevation: (900-)1200-2100 m

Discussion

Variety hypoleium is restricted to Chelan and Kittitas counties, Washington, extending from the Mt. Stuart Range south to the Bald Mountain area west of Ellensburg. It is doubtfully distinct from var. aureum, although geographically well isolated

Selected References

None.

Lower Taxa

None.
James L. Reveal +
(Piper) C. L. Hitchcock in C. L. Hitchcock et al. +
Eriogonum umbellatum subsp. hypoleium +
Kittitas sulphur flower +
(900-)1200-2100 m +
Gravelly to rocky slopes and ridges, high-elevation sagebrush communities, montane to subalpine conifer woodlands +
Flowering Jun–Sep. +
in C. L. Hitchcock et al., Vasc. Pl. Pacif. N.W. +
Illustrated +  and Endemic +
Eriogonum umbellatum var. hypoleium +
Eriogonum umbellatum +
variety +