Eriogonum corymbosum var. nilesii

Reveal

Phytologia 86: 128. 2004.

Common names: Niles’s wild buckwheat
Treatment appears in FNA Volume 5. Treatment on page 258. Mentioned on page 256.

Shrubs, 3–12 × 4–23 dm. Leaves cauline 1/2 or more length of flowering stem; petiole 0.3–1.5 cm; blade elliptic to oblong, 0.8–2.5(–3) × 0.4–0.8 cm, white-lanate to densely white-tomentose abaxially, silvery-floccose adaxially. Inflorescences 2–20 cm; branches floccose. Involucres 1.5–2 × 1–1.5 mm. Flowers 2–3 mm; perianth yellow to pale yellow or, rarely, white, glabrous.


Phenology: Flowering Aug–Nov.
Habitat: Sandy to gravelly or gypsum flats and washes, saltbush communities
Elevation: 200-900 m

Discussion

Variety nilesii is a plant of the Mojave Desert, known for certain only from the Las Vegas and Muddy Mountains region of Clark County, Nevada. A collection from the flood plain of the Paria River in Kane County, Utah, is tentatively assigned to this variety.

Selected References

None.

Lower Taxa

None.
James L. Reveal +
Reveal +
Undefined subg. Eucycla +
Niles’s wild buckwheat +
Nev. +  and Utah. +
200-900 m +
Sandy to gravelly or gypsum flats and washes, saltbush communities +
Flowering Aug–Nov. +
Illustrated +  and Endemic +
Eriogonum effusum subsp. corymbosum +
Eriogonum corymbosum var. nilesii +
Eriogonum corymbosum +
variety +