Pectis papposa
Pectis angustifolia
chinchweed, common chinchweed, manybristle chinchweed
lemonscent, lemonscented cinchweed, limoncillo
ascending, glabrous or puberulent.
erect or ascending, glabrous or puberulent.
linear, 10–60 × 1–2 mm, margins with 1–3 pairs of setae, faces glabrous (dotted on margins with round to oval oil-glands 0.3–0.5 mm).
linear, 10–45 × 1–3 mm, margins with 2–5 pairs of bristles 1–2 mm, faces glabrous (dotted with oil-glands 0.2–0.7 mm).
3–40 mm.
1–20 mm.
campanulate to cylindric.
narrowly campanulate or cylindric.
(7–)8(–10);
corollas 3–8 mm.
8;
corollas 3–5(–7) mm (glandular puberulent or nearly glabrous).
6–34;
corollas 2–5.5 mm (weakly 2-lipped, glabrous or glandular-puberulent).
(7–)10–20;
corollas 2.5–3.5 mm (sometimes weakly 2-lipped, glandular puberulent).
distinct, linear, 3–8 × 0.5–1.7 mm (dotted with 1–5 subterminal oil-glands plus 2–5 pairs of submarginal oil-glands).
distinct, linear or narrowly oblanceolate, 2.5–5.5 × 0.5–1 mm (dotted subterminally with 1 or 2 swollen oil-glands and submarginally with 2–5 pairs of smaller oil-glands).
in congested or open, cymiform arrays.
in congested, cymiform arrays.
2–5.5 mm, strigillose to short-pilose (hair tips curled, bulbous);
ray pappi usually coroniform, rarely of 1+ awns or bristles 1–4 mm;
disc pappi usually of 16–24, subplumose bristles 1.5–4 mm, rarely coroniform.
2.5–4 mm, strigillose (hair tips straight, forked);
pappi coroniform and/or of 0–7 scabrid awns or bristles 1–2 mm.
Pectis papposa
Pectis angustifolia
Varieties 2 (2 in the flora).
Pectis papposa generally flowers following summer monsoon rains in the desert of southwestern United States and northern Mexico. In favorable years, it becomes an aspect dominant, coloring wide areas of the desert with its bright yellow heads.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Varieties 3 (3 in the flora).
(Discussion copyrighted by Flora of North America; reprinted with permission.)
1. Phyllaries 3–5 mm; disc florets 6–14(–18); disc pappi 1–2.5 mm | var. papposa |
1. Phyllaries 5–8 mm; disc florets 12–24(–34); disc pappi 2.5–4 mm | var. grandis |
1. Bases of distal leaves notably expanded (often partially concealing peduncles); pappi usually coroniform, 0.1–0.3 mm (plus 1–7 awns or bristles in some Texas populations); herbage lemon-scented | var. angustifolia |
1. Bases of distal leaves seldom expanded; pappi either of 0–4 awns 0.5–1(–2) mm and sometimes additionally coroniform, or of 0–7 awns or bristles 1–3 mm and/or coroniform; herbage usually spicy-scented | → 2 |
2. Phyllaries widest near apices, each with subterminal oil gland 0.5–1 mm; pappi usually less than 1 mm; annuals or perennials; c Texas (Edwards Plateau) | var. fastigiata |
2. Phyllaries widest near middles, each with a subterminal oil-gland less than 0.5 mm; pappi often 1+ mm; annuals; s Texas, Mexico | var. tenella |
CalFlora
WildflowerSearch
iNaturalist
USDA Plants Database
KS Wildflowers
