|University of California, Berkeley|
|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 3--12(30) cm, taprooted. Stem: generally 1, erect, generally branched +- throughout. Leaf: basal and cauline, alternate, mostly sessile; blade linear or pinnately divided into 2--15 linear lobes, ultimate margins entire; faces glabrous or sparsely woolly-tomentose. Inflorescence: heads radiate, 1; involucre +- hemispheric, 3--6 mm diam; phyllaries 5--13+ in +- 2 series, basally fused, +- erect, curved inward in late flower, reflexed in fruit, elliptic to ovate, +- equal, +- membranous, veiny, tips generally purple; receptacle flat to convex, smooth or pitted, epaleate. Ray Flower: 5--13+; ray sessile, linear to ovate, generally yellow (white), often +- purple abaxially; some pistillate flowers sometimes lack corollas. Disk Flower: 20--60(100+), staminate; corolla +- 2--3 mm, generally not exceeding involucre, yellow, tube < to > bell-shaped throat, lobes +- erect, deltate to lanceolate; anther tip concave; style undivided, tip head-like, white. Fruit: +- ellipsoid, generally 5--6(10)-ribbed or -angled, generally papillate and, if so, sticky when wet; pappus 0.
Species In Genus: 3 species: California, Chile. Etymology: (Greek: mucus-seed, the fruit becoming slimy when wetted)
eFlora Treatment Author: Bruce G. Baldwin
Jepson Online Interchange
Key to BlennospermaPrevious taxon: Bidens vulgata
Next taxon: Blennosperma bakeri
Citation for this treatment: Bruce G. Baldwin 2016. Blennosperma, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=343, accessed on February 13, 2016.
Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on February 13, 2016.