Crepis vesicaria
Crepis rubra
beak hawk's-beard, weedy hawksbeard
red hawksbeard
1, erect to arcuate or decumbent (green or purple proximally), usually much branched, glabrate to hispid and/or tomentose, sometimes sparsely setose (setae black).
1–8, decumbent to ascending, scapiform, branched proximally, glabrate to tomentulose.
basal and cauline;
petiolate (bases clasping);
blades oblanceolate to ovate, often runcinate, 10–35 × 2–8 cm, margins pinnately lobed to toothed (terminal lobes relatively large), apices obtuse or acute, faces usually hirsute (hairs sometimes only on veins) or glabrous (cauline sessile, bases auriculate, clasping, margins ± toothed).
basal and cauline;
petiolate;
blades (at least basal) oblanceolate or runcinate, 2–15 × 0.5–3 cm, (bases attenuate) margins pinnately lobed to dentate, apices acute, faces hirsute.
cylindro-campanulate (becoming turbinate or urceolate in fruit), 5–14 × 5–6 mm.
cylindro-campanulate, 11–15 × 4–7 mm.
50–70;
corollas yellow (reddish abaxially), 6–15 mm.
40–100;
corollas pink or white, 16–17 mm.
7–16, (reflexed at maturity) lanceolate, 10–12 mm, (margins green to yellowish), apices obtuse or acute (ciliate), abaxial faces tomentose and often stipitate-glandular, adaxial with fine, appressed hairs.
8–14, (dark medially), lanceolate, 10–12 mm, (margins yellowish) apices acute, abaxial faces sparsely to densely stipitate-glandular, adaxial with fine, appressed hairs.
of 5–12, ovate to linear-lanceolate, glabrous bractlets 3–4 mm (reflexed in fruit, scarious).
of 8–10, ovate-lanceolate, glabrous bractlets 4–8 mm.
10–20, in lax, corymbiform arrays.
1(–2), usually borne singly (peduncles scapiform).
(monomorphic or dimorphic) pale brown or yellowish, fusiform, 4–9 mm, outer wider with apices attenuate (not beaked), inner gradually tapered, beaked (beaks 2–5 mm, ± equal to bodies), ribs 10 (narrow);
pappi white (fine, soft), 3–6 mm.
dimorphic, dark brown, fusiform: outer curved, 8–9 mm, coarsely beaked, inner straight, 12–21 mm, finely beaked, ribs 10 (sharply spiculate);
pappi yellowish white to dusky white (fine), 5–8 mm.
= 8, 16.
= 10.
Crepis vesicaria
Crepis rubra
Native to the Mediterranean region of western Europe, Crepis vesicaria is recognized by its annual or biennial habit, pinnately lobed leaves, reflexed calyculi, tomentose and glandular phyllaries, and slender, long-beaked inner cypselae. It is polymorphic; subspecies are recognized in Europe. E. B. Babcock (1947) identified the North American plants as subsp. taraxaciflora (Thuiller) Thellung, which some Europeans (T. G. Tutin et al. 1964–1980, vol. 4) have listed as a synonym of subsp. haenseleri (Boissier ex de Candolle) P. D. Sell.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Native to the Mediterranean region and Asia Minor, Crepis rubra is widely cultivated throughout the world and occasionally escapes. It can be easily recognized by its annual habit, scapiform stems, relatively large, often single heads, and pink or white corollas. Wild plants are shorter than cultivated ones.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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