|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: Trichoptilium||View Description||Dichotomous Key|
|Species:||View Description||Dichotomous Key|
Trichoptilium incisum (A. Gray) A. Gray
Habit: Annual, perennial herb, 5--25 cm, generally +- tomentose. Stem: 1--several from base. Leaf: simple, basal and cauline, alternate or +- opposite, mostly clustered in proximal 1/2 of pl, 1--3(5) cm, sessile or tapered to a short, winged petiole; blade oblanceolate to spoon-shaped or ovate, acute, sharply dentate or shallowly lobed, densely tomentose, resin-dotted. Inflorescence: head discoid or radiant, 1; peduncle 3--11 cm, slender, bractless, glandular-puberulent; involucre 6--12 mm diam, hemispheric or bell-shaped, often appearing +- rotate when pressed; phyllaries in 2 +- equal series, free, 5--7 mm, linear-elliptic, acute; receptacle rounded, epaleate. Flower: 30--100+; corolla 4--7 mm, yellow (pink), outermost sometimes enlarged and +- bilateral; style-branches truncate. Fruit: 2--3 mm, obpyramidal, glabrous to densely strigose; pappus of 5 scales, each 3--5 mm, dissected into many bristles. Chromosomes: 2n=26.
Ecology: Dry slopes, plains, creosote-bush scrub; Elevation: < 1500 m. Bioregional Distribution: D; Distribution Outside California: southern Nevada, southwestern Arizona, northern Baja California. Flowering Time: Jan--May, Oct--Dec
eFlora Treatment Author: David J. Keil
Jepson Online Interchange
Previous taxon: Trichoptilium
Next taxon: Tripleurospermum
Citation for this treatment: David J. Keil 2017. Trichoptilium incisum, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=5455, accessed on January 18, 2017.
Citation for the whole project: Jepson Flora Project (eds.) 2017. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on January 18, 2017.