Pectis linearifolia
Pectis angustifolia
Florida chinchweed, Florida cinchweed
lemonscent, lemonscented cinchweed, limoncillo
decumbent to erect (very leafy), glabrous or puberulent (in decurrent lines).
erect or ascending, glabrous or puberulent.
linear, 10–50 × 1–3 mm, margins with 2–6 pairs of setae, faces glabrous (abaxial dotted submarginally with round oil-glands 0.2–0.5 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).
0–1 mm.
1–20 mm.
narrowly campanulate to cylindric.
narrowly campanulate or cylindric.
5;
corollas 4.5–5.5 mm.
8;
corollas 3–5(–7) mm (glandular puberulent or nearly glabrous).
4–10;
corollas 2.5–3 mm (2-lipped).
(7–)10–20;
corollas 2.5–3.5 mm (sometimes weakly 2-lipped, glandular puberulent).
distinct, linear or linear-oblanceolate, 5–6 × 1–1.5 mm (dotted with scattered, elliptic oil-glands 0.4–0.5 mm).
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).
borne singly or in congested, (leafy) cymiform arrays.
in congested, cymiform arrays.
2.25–3.25 mm, puberulent;
pappi (ray and disc similar) of 2–5 antrorsely barbed bristles or awns 1.5–2.5 mm plus shorter, barbellate scales.
2.5–4 mm, strigillose (hair tips straight, forked);
pappi coroniform and/or of 0–7 scabrid awns or bristles 1–2 mm.
= 48.
Pectis linearifolia
Pectis angustifolia
Reports of Pectis linearifolia from Jamaica were based on misidentifications of diminutive, short-peduncled individuals of P. glaucescens (D. J. Keil 1986). In Florida, P. linearifolia and P. glaucescens are largely allopatric; they occasionally occur in mixed populations. No hybrids are known.
(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. 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 |
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