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|Jepson eFlora: Taxon page
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|Family: Asteraceae (Compositae)||View Description||Dichotomous Key|
|Genus: Amblyopappus||View Description||Dichotomous Key|
|Species:||View Description||Dichotomous Key|
Amblyopappus pusillus Hook. & Arn.
Habit: Annual 3--40 cm, glabrous or glandular, sticky; odor strong. Stem: erect, simple or much-branched. Leaf: simple, alternate or lowermost opposite, 1--4 cm, linear to narrowly oblanceolate, entire or pinnately lobed, +- fleshy. Inflorescence: heads disciform or minutely radiate, many in round- or flat-topped, leafy cyme-like clusters; peduncle generally 1--6 mm; involucre 3--6 mm diam, bell-shaped; phyllaries 3--8, in 1 series, equal, free, overlapping, 2--5 mm, obovate; receptacle short-conic, epaleate. Pistillate Flower: 1 per phyllary; corolla 0.5--1 mm, tubular, yellow, ray 0 or minute, 2--3-lobed. Disk Flower: 2--30; corolla 0.5--1 mm, yellow; style branches very short, tip triangular. Fruit: 1.5--2 mm, obconic, 3--4 angled, black; hairs short, ascending; pappus a crown of 7--12 scales, each 0.2--0.5 mm, oblong, blunt, white or +- purple. Chromosomes: 2n=16.
Ecology: Coastal dunes, beaches, headlands; Elevation: < 250 m. Bioregional Distribution: s CCo, SCo, ChI; Distribution Outside California: Baja California; western South America. Flowering Time: Generally Mar--Jun
eFlora Treatment Author: David J. Keil
Jepson Online Interchange
Previous taxon: Amblyopappus
Next taxon: Ambrosia
Citation for this treatment: David J. Keil 2017. Amblyopappus pusillus, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=802, 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.