Difference between revisions of "Crepis pleurocarpa"
Proc. Amer. Acad. Arts 17: 221. 1882.
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|common_names=Naked hawksbeard | |common_names=Naked hawksbeard | ||
| + | |special_status={{Treatment/ID/Special_status | ||
| + | |code=E | ||
| + | |label=Endemic | ||
| + | }} | ||
|basionyms= | |basionyms= | ||
|synonyms={{Treatment/ID/Synonym | |synonyms={{Treatment/ID/Synonym | ||
|name=Crepis acuminata var. pleurocarpa | |name=Crepis acuminata var. pleurocarpa | ||
|authority=(A. Gray) Jepson | |authority=(A. Gray) Jepson | ||
| + | |rank=variety | ||
}} {{Treatment/ID/Synonym | }} {{Treatment/ID/Synonym | ||
|name=Crepis intermedia var. pleurocarpa | |name=Crepis intermedia var. pleurocarpa | ||
|authority=(A. Gray) A. Gray | |authority=(A. Gray) A. Gray | ||
| + | |rank=variety | ||
}} | }} | ||
|hierarchy=Asteraceae;Asteraceae tribe Cichorieae;Crepis;Crepis pleurocarpa | |hierarchy=Asteraceae;Asteraceae tribe Cichorieae;Crepis;Crepis pleurocarpa | ||
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-->{{#Taxon: | -->{{#Taxon: | ||
name=Crepis pleurocarpa | name=Crepis pleurocarpa | ||
| − | |||
|authority=A. Gray | |authority=A. Gray | ||
|rank=species | |rank=species | ||
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|publication title=Proc. Amer. Acad. Arts | |publication title=Proc. Amer. Acad. Arts | ||
|publication year=1882 | |publication year=1882 | ||
| − | |special status= | + | |special status=Endemic |
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V19-20-21/V19_302.xml |
|tribe=Asteraceae tribe Cichorieae | |tribe=Asteraceae tribe Cichorieae | ||
|genus=Crepis | |genus=Crepis | ||
Latest revision as of 19:51, 5 November 2020
Perennials, 15–60 cm (taproots slender, caudices swollen). Stems 1–3, slender or stout, branched proximally (sparingly) or distally, glabrate to tomentulose. Leaves basal and cauline; petiolate (petioles relatively broadly winged); blades elliptic or oblanceolate, often runcinate, 7–28 × 0.5–7 cm, margins pinnately lobed to dentate (lobes remote, lanceolate to narrowly triangular, often recurved), apices attenuate, faces usually tomentulose to glabrate, sometimes glandular. Heads 7–10(–30), in corymbiform arrays. Calyculi of 5–6, deltate to lanceolate, tomentulose bractlets 1.5–4 mm. Involucres cylindro-campanulate, 8–16 × 3–5 mm. Phyllaries 5(–10), (deep green or black) lanceolate, 10–16 mm, (bases becoming strongly keeled and swollen, often glabrous, margins yellowish, conspicuously and densely tomentulose), apices acute to strongly acuminate, abaxial faces densely tomentulose adaxial with fine hairs. Florets 5–10(–12); corollas yellow, 15–20 mm. Cypselae deep reddish brown, subcylindric, 5–8 mm, apices constricted, ribs 10 (prominent); pappi yellowish white, 6–12 mm (bristles unequal). 2n = 22, 33, 44, 55, 77, 88.
Phenology: Flowering Jun–Aug.
Habitat: Streams in mixed conifer forests, road cuts, steep rocky serpentine slopes
Elevation: 400–2200 m
Distribution
Calif., Idaho, Nev., Oreg., Wash.
Discussion
Crepis pleurocarpa is distinguished by its narrow, acuminate, silvery leaves, 5(–10), strongly keeled phyllaries with conspicuous white, tomentose margins, strongly ribbed cypselae, and relatively few florets per head. Otherwise, it is very similar to C. acuminata and C. intermedia.
Selected References
None.