Pectis imberbis
beardless chinchweed, tall chinchweed
erect, glabrous.
narrowly linear, 10–50 × 1–2 mm (sometimes smaller, bractlike distally), margins with 0–1 pairs of setae, faces glabrous (abaxial dotted near each margin with a row of elliptic oil-glands ca. 0.3 mm).
10–80 mm.
cylindric.
5;
corollas 6–11 mm (laminae often dotted near margins with inconspicuous oil-glands).
4–7;
corollas 3.7–6 mm (lobes 5, equal, each with 1 subterminal oil-gland).
distinct, linear-oblong, 5–9.5 × 1–1.5 mm (each dotted with 1–2 swollen, subapical oil-glands and a row of 2–3 linear, submarginal oil-glands on each side of midrib).
borne singly or in open, cymiform arrays.
3.5–5 mm, puberulent (hair tips blunt);
pappi of 1–3 stout awns 1–2 mm or coroniform.
= 24.
Pectis imberbis
Pectis imberbis occurs in relatively small, widely separated populations. Overgrazing may be a factor in the scarcity of these plants. They are generally more than 25 cm before they begin to flower and may be unable to reproduce under grazing pressure.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
WildflowerSearch
iNaturalist
USDA Plants Database
