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crépis capillaire, smooth hawk's-beard

Habit Annuals or biennials, 10–90 cm (taproots shallow).

1(–6+), erect to ± procumbent, usually simple (usually with single stout leader, sometimes multiple with slender laterals), hispid proximally or throughout.


basal and cauline; petiolate (petiole bases clasping);

blades lanceolate or oblanceolate, runcinate or lyrate, 5–30 × 1–4.5 cm, margins pinnately divided to sharply dentate (lobes remote, unequal), apices obtuse or acute, mucronate, faces glabrous or sparsely hispid (hairs yellow; proximal cauline auriculate and clasping).


cylindric to turbinate, 5–8 × 3–6 mm.



corollas deep yellow (reddish abaxially), 8–12 mm (hairy).


8–16, lanceolate, 6–7 mm (margins scarious), apices acute, abaxial faces stipitate-glandular and glandular setose (setae black, usually in 2 rows), adaxial glabrous.


of 8, linear, tomentulose or stipitate-glandular bractlets 2–4 mm.


10–15(–30+), in corymbiform arrays.


brownish yellow, fusiform, 1.5–2.5 mm, apices narrowed (not beaked), ribs 10 (glabrous or scabrous);

pappi white (fluffy), 3–4 mm (scarcely surpassing phyllaries).


= 6.

Crepis capillaris

Phenology Flowering May–Nov.
Habitat Meadows, pastures, lawns, roadsides, fields, waste places
Elevation 0–1300 m (0–4300 ft)
from FNA
AK; AR; CA; CO; CT; DC; DE; IA; ID; IL; IN; KY; MA; MD; ME; MI; MO; MS; MT; NC; ND; NH; NJ; NV; NY; OH; OR; PA; RI; TN; TX; UT; VA; VT; WA; WI; WV; AB; BC; NB; NS; ON; QC; Europe [Introduced in North America]
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Crepis capillaris is recognized by its shallow root system, dense rosettes of coarsely dentate or pinnately lobed leaves, erect slender stems, auriculate-based cauline leaves, relatively small heads, phyllaries with double rows of black setae, and fluffy white pappi. It is weedy and can become a serious lawn pest. It is one of only three species of Crepis with 2n = 6; E. B. Babcock (1947) considered it to be advanced in the genus.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source FNA vol. 19, p. 228.
Parent taxa Asteraceae > tribe Cichorieae > Crepis
Sibling taxa
C. acuminata, C. atribarba, C. bakeri, C. barbigera, C. biennis, C. bursifolia, C. elegans, C. foetida, C. intermedia, C. modocensis, C. monticola, C. nana, C. nicaeënsis, C. occidentalis, C. pannonica, C. pleurocarpa, C. pulchra, C. rubra, C. runcinata, C. setosa, C. tectorum, C. vesicaria, C. zacintha
Synonyms Lapsana capillaris, C. cooperi, C. virens
Name authority (Linnaeus) Wallroth: Linnaea 14: 657. (1840)
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