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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 1--12 dm, aromatic. Stem: +- erect. Leaf: proximal opposite or in rosette, generally withered before flower, most alternate, sessile, linear to oblanceolate, serrate, or minutely so, or entire, coarse-hairy to strigose, silky-, or +- shaggy-hairy, distal sometimes also stalked-glandular and/or gland-dotted, tips of distal leaves generally each with a pit-gland. Inflorescence: heads radiate, 1 or in +- flat-topped, panicle-, raceme-, or spike-like clusters or in tight groups; peduncle bracts each with terminal pit-gland; involucre +- obconic or bell-shaped to +- spheric, 4--8+ mm diam; phyllaries 3--16 in 1 series, elliptic, oblanceolate, or obovate, each generally 1/2 enveloping a subtended ray ovary, falling with fruit, abaxially with pit-gland-tipped cylindrical outgrowths and glabrous or +- shaggy, bristly, and/or sessile- or stalked-glandular; receptacle flat to convex, glabrous; paleae subtending all or most disk flowers. Ray Flower: 3--16; corolla yellow, ray 4--6.5 mm, lobes 1/8--1/2 length of ray, +- parallel. Disk Flower: ; Fruit: ray fruit +- 2.5--4 mm, nearly round in ×-section (except +- flattened adaxially) or +- 3- angled (abaxially generally +- widely 2-faced, adaxially +- flattened to slightly bulging), glabrous, tip beaked, beak adaxial, ascending, pappus 0; disk fruit +- club-shaped, glabrous, tip beakless, pappus 0.
Species In Genus: 4 species: California. Etymology: (Greek: whole chaff, for bracts throughout receptacle) Note: +- identical forms often intersterile in Holocarpha heermannii and Holocarpha virgata. Self-sterile.
eFlora Treatment Author: Bruce G. Baldwin
Jepson Online Interchange
Key to HolocarphaPrevious taxon: Hieracium triste
Next taxon: Holocarpha heermannii
Citation for this treatment: Bruce G. Baldwin 2016. Holocarpha, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=477, accessed on May 04, 2016.
Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on May 04, 2016.