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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 [perennial herb], aromatic; herbage +- glabrous, puberulent, or long-soft-hairy to silvery-strigose. Stem: generally 1, erect or ascending [prostrate], generally branched. Leaf: mostly cauline at flower, alternate, petioled or sessile, elliptic to ovate, [oblong or spoon-shaped], 1--3-pinnately lobed, ultimate lobes thread-like to linear, or narrowly spoon-shaped, entire, abruptly short-pointed. Inflorescence: heads radiate [discoid], 1 or in loose +- flat-topped clusters; involucre hemispheric to saucer-shaped; phyllaries persistent, 22--45+ in 3--4+ series, sometimes reflexed in fruit, margins and tips scarious; receptacle hemispheric to conic, paleate; paleae weakly folded to +- flat. Ray Flower: 12--15+, pistillate [sterile]; corolla white, ray oblong, often persistent, reflexed in fruit. Disk Flower: 100--200+; corolla yellow, tube proximally sac-like, weakly clasping ovary top, > bell-shaped throat, lobes deltate; anther tip ovate; style tips truncate, brush-like. Fruit: +- obovoid, weakly compressed front-to-back, with 2 weak lateral veins and 1 adaxial vein, faces finely striate, glabrous; pappus 0.
Species In Genus: 6 species: Europe, northern Africa. Etymology: (Greek: ground + melon) Note: Chamaemelum nobile (L.) All., historic waif, apparently not naturalized in California.
eFlora Treatment Author: Linda E. Watson
Jepson Online Interchange
Previous taxon: Chaetopappa ericoides
Next taxon: Chamaemelum fuscatum
Citation for this treatment: Linda E. Watson 2016. Chamaemelum, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=374, accessed on February 10, 2016.
Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on February 10, 2016.