Eriogonum ochrocephalum var. calcareum

(S. Stokes) M. Peck

Leafl. W. Bot. 4: 178. 1945.

Common names: Harper wild buckwheat
Endemic
Basionym: Eriogonum ochrocephalum subsp. calcareum S. Stokes Eriogonum, 92. 1936
Synonyms: Eriogonum ochrocephalum var. sceptrum Reveal
Treatment appears in FNA Volume 5. Treatment on page 284. Mentioned on page 283.

Leaf blades lanceolate to elliptic or oblong, (0.6–)1–3.5(–4) × 0.5–1.5 cm. Scapes (0.6–)1–4(–5) dm, glabrous or, rarely, slightly floccose. Involucres turbinate, 3–5.5(–6) × (1.5–)2.5–3(–4) mm, sparsely floccose or glabrous. Flowers 1.5–3 mm; perianth glabrous. Achenes 1.5–3 mm.


Phenology: Flowering May–Jun.
Habitat: Volcanic, diatomaceous or gumbo flats, washes, and slopes, saltbush and sagebrush communities, juniper woodlands
Elevation: 600-1800 m

Discussion

Variety calcareum is known from southern Baker and Malheur counties, Oregon, and from Elmore, Owyhee, Payette, Twin Falls, and southern Washington counties, Idaho. It is considered “sensitive” in Idaho.

Selected References

None.

Lower Taxa

None.
James L. Reveal +
(S. Stokes) M. Peck +
Eriogonum ochrocephalum subsp. calcareum +
Harper wild buckwheat +
Idaho +, Nev. +  and Oreg. +
600-1800 m +
Volcanic, diatomaceous or gumbo flats, washes, and slopes, saltbush and sagebrush communities, juniper woodlands +
Flowering May–Jun. +
Leafl. W. Bot. +
Eriogonum ochrocephalum var. sceptrum +
Eriogonum ochrocephalum var. calcareum +
Eriogonum ochrocephalum +
variety +