Difference between revisions of "Eriogonum zionis"

J. T. Howell

Leafl. W. Bot. 2: 253. 1940.

Synonyms: Eriogonum racemosum var. zionis (J. T. Howell) S. L. Welsh
Treatment appears in FNA Volume 5. Treatment on page 297. Mentioned on page 235, 237, 296.
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(No difference)

Revision as of 22:36, 16 December 2019

Herbs, erect to spreading, 3–8(–10) × 0.5–1.5 dm, glabrous and glaucous, rarely tomentose, greenish. Stems spreading to erect, without persistent leaf bases, up to 1/8 height of plant; caudex stems absent; aerial flowering stems erect to spreading, slender to stout, solid or hollow, often fistulose, 1–2.5(–3) dm, glabrous, rarely tomentose. Leaves basal, 1 per node; petiole 3–6(–10) cm, tomentose to floccose; blade elliptic or oblong-ovate to ovate, 2–4.5(–6) × 1.5–2.5(–5) cm, lanate to densely tomentose abaxially, thinly floccose or glabrous and green adaxially, margins plane. Inflorescences narrowly virgate or racemose with involucres racemosely disposed throughout or at tips, 20–50(–60) × 5–25 cm, glabrous, rarely tomentose; branches dichotomous, upper secondaries suppressed and bearing (8–)10–15(–20) racemosely arranged involucres; bracts 3, scalelike, triangular, and 2–7 mm, or leaflike, elliptic, and 10–30 × 4–15 mm. Peduncles absent. Involucres 1 per node, turbinate to turbinate-campanulate, 1.5–3 × 1.5–2.5 mm, tomentose; teeth 5, erect, 0.2–0.4 mm. Flowers 2–6(–7) mm; perianth white to yellow or bright red, glabrous; tepals connate proximal 1/4 their length, monomorphic, oblong; stamens exserted, 2–5 mm; filaments pilose proximally. Achenes light brown, (3–)4–5(–6) mm, glabrous.

Distribution

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w United States.

Discussion

Varieties 2 (2 in the flora).

Selected References

None.

Key

1 Perianths white to yellow Eriogonum zionis var. zionis
1 Perianths bright red Eriogonum zionis var. coccineum