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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], 10--90+ cm, generally canescent. Stem: erect, branches wand-like to widely divergent. Leaf: proximally opposite, 2--10+ pairs in Feb--Apr, otherwise alternate, petioled, blades proximally lance-linear to lanceolate, distally elliptic or lanceolate to +- deltate or ovate, entire or toothed, minutely strigose to silky-hairy, sometimes coarse-erect-hairy, generally gland-dotted, 3-veined. Inflorescence: heads disciform or discoid and staminate, 1 or loosely in 2s or 3s in generally bractless, raceme- to panicle-like clusters; involucre 3--5 mm diam, +- cup- to saucer-shaped; outer phyllaries (4)5(7) in 1 series, free, +- green, inner 0--4, each subtending a pistillate flower, scarious to membranous, enlarging with age, ovate to elliptic in fruit; receptacle convex, generally paleate, paleae wedge-shaped to linear, membranous, +- soft-hairy to bristly distally. Staminate Flower: 5--15+; corolla +- white to maroon, funnel-shaped, lobes 5, erect, reflexed, or curved inward; filaments fused, anthers free or generally fused at tips. Pistillate Flower: (0)1--4; corolla 0. Fruit: strongly compressed front-to-back, +- obovoid to ellipsoid, smooth or warty, sometimes gland-dotted, margins corky-winged, toothed, fruit tip often white-tufted; pappus 0.
Species In Genus: 2 species: southwestern United States, northwestern Mexico. Etymology: (Greek: 2 bugs, from 2-fruit heads)
eFlora Treatment Author: Bruce G. Baldwin, adapted from Strother (2006)
Jepson Online Interchange
Previous taxon: Delairea odorata
Next taxon: Dicoria canescens
Citation for this treatment: Bruce G. Baldwin, adapted from Strother (2006) 2017. Dicoria, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=404, accessed on January 16, 2017.
Citation for the whole project: Jepson Flora Project (eds.) 2017. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on January 16, 2017.