Eriogonum contiguum

(Reveal) Reveal

Phytologia 23: 175. 1972.

Common names: Annual desert trumpet
Basionym: Eriogonum inflatum var. contiguum Reveal
Treatment appears in FNA Volume 5. Treatment on page 387. Mentioned on page 383, 389.
Revision as of 21:29, 26 July 2019 by FNA>Volume Importer
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Herbs, spreading to erect, annual, (0.3–)0.5–3 dm, glabrous and sparsely glandular, green or reddish green. Stems: caudex absent; aerial flowering stems erect, solid, not fistulose, 0.1–0.5 dm, glabrous, glandular proximally. Leaves basal; petiole 0.4–1.5 cm, hirsute; blade oblong to round, (0.3–)0.5–1(–1.4) × (0.3–)0.5–1(–1.4) cm, hirsute and greenish to yellowish on both surfaces, margins plane. Inflorescences cymose, dense, spreading, (2–)5–18 × 2–15 cm; branches not fistulose, glabrous except glandular near proximal nodes; bracts 3, scalelike, 0.5–1.5 × 0.3–1 mm. Peduncles mostly erect, straight or slightly curved, capillary, 0.3–1.2(–2) cm, glabrous, glandular proximally. Involucres turbinate, 1–1.3 × 0.6–1 mm, glabrous; teeth (4–)5, erect, 0.2–0.4 mm. Flowers 1–2.5 mm; perianth golden yellow to reddish, densely short-hirsute with coarse curved hairs; tepals monomorphic, lanceolate; stamens exserted, 1–2.5 mm; filaments sparsely pubescent proximally. Achenes light brown, lenticular to 3-gonous, 1.5–1.8(–2) mm, glabrous.


Phenology: Flowering Apr–Jun.
Habitat: Sandy to gravelly flats and slopes, saltbush, creosote bush, and mesquite communities
Elevation: -20-900 m

Discussion

Of conservation concern.

Eriogonum contiguum is confined to the greater Death Valley region in Inyo County, California, and southern Nye County, Nevada.

Selected References

None.

Lower Taxa

None.
... more about "Eriogonum contiguum"
James L. Reveal +
(Reveal) Reveal +
Eriogonum inflatum var. contiguum +
Annual desert trumpet +
Calif. +  and Nev. +
-20-900 m +
Sandy to gravelly flats and slopes, saltbush, creosote bush, and mesquite communities +
Flowering Apr–Jun. +
Eriogonum contiguum +
Eriogonum subg. Ganysma +
species +