Difference between revisions of "Eriophyllum ambiguum"
Proc. Amer. Acad. Arts 19: 26. 1883.
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|tribe=Asteraceae tribe Heliantheae | |tribe=Asteraceae tribe Heliantheae | ||
|subtribe=Asteraceae (tribe Heliantheae) subtribe Baeriinae | |subtribe=Asteraceae (tribe Heliantheae) subtribe Baeriinae | ||
Revision as of 20:41, 16 December 2019
Annuals, 5–30 cm. Stems decumbent to ascending. Leaves: blades oblong to oblanceolate, 5–40 mm, margins entire or toothed, plane (apices rounded to acute), faces lanate or tometose to tomentulose. Heads borne singly. Peduncles 1–8 cm. Involucres hemispheric to obconic, 5–6 mm diam. Phyllaries 6–10, ± connate. Ray florets 6–10; laminae yellow, 2–10 mm. Disc florets 10–30; corollas 1.3–3 mm (tubes cylindric, throats broadly funnelform, abruptly dilated, lobes glabrous or hairy, hairs 1-celled, not glandular; anther appendages deltate, widest at bases, not glandular). Cypselae 2.2–3 mm; pappi 0 or of 6–10 ± ovate to cuneate, entire, erose, or laciniate scales 0.1–0.5 mm.
Distribution
w United States.
Discussion
Varieties 2 (2 in the flora).
Selected References
None.
Key
| 1 | Disc corolla lobes glabrous; pappi of 6–10 erose to laciniate scales 0.2–0.5 mm | Eriophyllum ambiguum var. ambiguum |
| 1 | Disc corolla lobes hairy (hairs 1-celled); pappi 0, or of 6–10 entire scales 0.1–0.2 mm | Eriophyllum ambiguum var. paleaceum |