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|Jepson eFlora: Taxon page
Key to families | Table of families and genera
Index to accepted names and synonyms:
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|Family: Asteraceae (Compositae)||View Description||Dichotomous Key|
|Genus:||View Description||Dichotomous Key|
|Species:||View Description||Dichotomous Key|
Habit: Annual to perennial herb from taproot, woody caudex, or creeping rhizome; sap milky. Stem: 1--20+, erect, <= 12 dm, simple or branched, glabrous to densely hairy, sometimes stalked-glandular. Leaf: basal or cauline, alternate, base narrowed, often winged, blade entire or toothed to pinnately lobed or divided. Inflorescence: heads liguliflorous, generally in cyme-like, flat-topped, or panicle-like clusters; phyllaries in 2 series, outer reduced, inner +- equal, abaxially glabrous or hairy, adaxially generally glabrous; receptacle flat to convex, epaleate, shallowly pitted. Flower: 5--100+; corolla generally yellow [orange, white, pink], generally glabrous; ligule readily withering. Fruit: +- cylindric or fusiform, distally +- tapered or beaked with +- distinct constriction, 10--20-ribbed, glabrous or minutely short-rough hairy; pappus of 80--150 soft, hair-like bristles.
Species In Genus: +- 200 species: especially northern hemisphere. Etymology: (Greek: slipper or sandal, perhaps for fruit) Note: Reports of Crepis rubra L. from Marin Co. not substantiated.
Unabridged Note: Sexual forms of native species are distinct but (except Crepis nana, Crepis runcinata) connected by many apomictic, asexually reproducing forms of hybrid origin that obscure boundaries. Many of these asexual forms were grouped into subspecies by Babcock and Stebbins (1947); however, it is doubtful that these will hold up under close taxonomic scrutiny.
eFlora Treatment Author: David Bogler
Jepson Online Interchange
Key to CrepisPrevious taxon: Cotula coronopifolia
Next taxon: Crepis acuminata
Citation for this treatment: David Bogler 2017. Crepis, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=395, accessed on February 20, 2017.
Citation for the whole project: Jepson Flora Project (eds.) 2017. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on February 20, 2017.