Stenogonum flexum |
Stenogonum salsuginosum |
|
---|---|---|
bent two-whorl buckwheat |
salty buckwheat, smooth two-whorl buckwheat |
|
Stems | mostly erect, (0.5–)1–3 dm, sparsely glandular. |
mostly spreading, 0.5–2 dm, glabrous. |
Leaves | basal; petiole 1–4 cm; blade mostly orbiculate, 0.5–2 cm, minutely strigose when young, glabrous at maturity. |
basal and cauline; basal petiolate, petiole 0.5–2 cm, blade spatulate, (1–)2–4 × (0.5–)1–2.5 cm, glabrous; cauline sessile, blade narrowly lanceolate to oblanceolate, 0.5–4.5 × 0.2–1 cm. |
Inflorescences | erect or slightly spreading, 0.5–2.5 dm, glandular at nodes and proximal internode; bracts 0.5–2 mm, sometimes sparsely glandular. |
spreading, 0.5–2.5(–3) dm, glabrous, occasionally glandular at proximal nodes; bracts 0.5–4 mm. |
Peduncles | flexed, filiform, 1–3 cm, glandular to middle. |
straight, slender to filiform, 0.1–4 cm, glabrous, or absent. |
Flowers | perianth yellow to reddish yellow, 1.5–3.5 mm; tepals lanceolate; filaments 1.5–2 mm; anthers 0.2–0.3 mm. |
perianth yellow, 1.5–3 mm; tepals lanceolate; filaments 1.5–2 mm; anthers 0.2–0.3 mm. |
Achenes | 2–2.5 mm. |
2–2.5 mm. |
Involucral | bracts 2–3 × 2–4 mm, glabrous, sometimes sparsely glandular. |
bracts 2–8 × 2–3 mm, glabrous. |
2n | = 40. |
= 40. |
Stenogonum flexum |
Stenogonum salsuginosum |
|
Phenology | Flowering Apr–Sep. | Flowering Apr–Sep. |
Habitat | Clay hills and flats, saltbush communities | Clay hills and flats, saltbush communities |
Elevation | 1300-2000 m (4300-6600 ft) | 1300-2200 m (4300-7200 ft) |
Distribution |
AZ; CO; NM; UT |
AZ; CO; NM; UT; WY
|
Discussion | Stenogonum flexum is found in eastern Utah from Uintah County south to Kane and San Juan counties, with additional populations over the state lines in Arizona, Colorado, and New Mexico. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Stenogonum salsuginosum is common to abundant and even weedy on the Colorado Plateau. The species occurs from Washakie County, Wyoming, southward into eastern Utah and extreme western Colorado to northern Arizona (just entering Mohave County) and northwestern New Mexico. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 5, p. 432. | FNA vol. 5, p. 432. |
Parent taxa | ||
Sibling taxa | ||
Synonyms | Eriogonum flexum | Eriogonum salsuginosum |
Name authority | (M. E. Jones) Reveal & J. T. Howell: Brittonia 28: 249. (1976) | Nuttall: Proc. Acad. Nat. Sci. Philadelphia 4: 19. (1848) |
Web links |