Eriogonum douglasii

Herbs, matted, occasionally polygamodioecious, 0.4–1.5 × 0.5–6 dm, thinly tomentose to glabrate. Stems: caudex spreading; aerial flowering stems erect or nearly so, slender, solid, not fistulose, arising at nodes of caudex branches and at distal nodes of short, nonflowering aerial branches, 0.4–1.2 dm, with a whorl of 4–8 leaflike bracts ca. midlength, similar to leaf blades, 0.3–1.5 × 0.1–0.3 cm. Leaves in basal rosettes; petiole 0.05–0.5(–1) cm, tomentose; blade oblanceolate or elliptic to spatulate, 0.4–1.5(–1.9) × 0.1–0.5 cm, lanate on both surfaces, or tomentose abaxially and slightly less so and greenish adaxially, margins entire, plane. Inflorescences capitate, 0.8–1.5 cm wide; branches absent; bracts absent immediately below involucre. Involucres 1 per node, turbinate to turbinate-campanulate, 2.5–3.5 × 2–2.5 mm; teeth 6–14, lobelike, strongly reflexed, 1.5–4(–6) mm. Flowers 4–9 mm, including 0.7–2 mm stipelike base; perianth yellow, cream, or ochroleucous to rose-red, sparsely to densely villous abaxially; tepals monomorphic, obovate; stamens exserted, 4–6 mm; filaments pilose proximally. Achenes light brown, 3–4.5 mm, glabrous except for pubescent beak.

Distribution

• Generated Map
• Legacy Map

w United States.

Discussion

Varieties 3 (3 in the flora).

Selected References

None.

Lower Taxa

Eriogonum douglasii var. douglasii, Eriogonum douglasii var. elkoense, Eriogonum douglasii var. meridionale

Key

1	Leaf blades tomentose abaxially, less so adaxially, narrowly oblanceolate to spatulate; flowers 5-9 mm; e Washington, ne Oregon	Eriogonum douglasii var. douglasii
1	Leaf blades usually densely lanate on both surfaces, elliptic to spatulate; flowers 4-8 mm; s Oregon, ne California, n Nevada	> 2
2	Flowers 4-5(-6) mm; s Oregon, ne California, nw Nevada	Eriogonum douglasii var. meridionale
2	Flowers 5-8 mm; ne Nevada	Eriogonum douglasii var. elkoense