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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: Perennial herb from woody taproot. Stem: 1--many, decumbent to erect, generally red-tinged. Leaf: basal and cauline, alternate, entire, toothed, or sharply lobed, glabrous to tomentose or glandular; basal petioled; cauline generally clasping, +- reduced. Inflorescence: heads generally radiate, 1--30+; involucre hemispheric to bell-shaped; phyllaries +- equal or +- graduated in 2--6 series, herbaceous; receptacle flat to weakly convex, epaleate. Ray Flower: 10--80; corolla 2--35 mm, ray adaxially yellow, abaxially yellow to orange or red. Disk Flower: 20--100+; corolla 5--15 mm, cylindric to funnel-shaped, yellow. Fruit: 3--4-angled, generally hairy; pappus bristles 15--60, generally rigid, unequal.
Species In Genus: +- 15 species: western North America. Etymology: (Greek: +- red hair, describing pappus)
eFlora Treatment Author: David J. Keil & Gregory K. Brown
Jepson Online Interchange
Key to PyrrocomaPrevious taxon: Pulicaria paludosa
Next taxon: Pyrrocoma apargioides
Citation for this treatment: David J. Keil & Gregory K. Brown 2017. Pyrrocoma, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=581, accessed on April 30, 2017.
Citation for the whole project: Jepson Flora Project (eds.) 2017. Jepson eFlora, http://ucjeps.berkeley.edu/eflora/, accessed on April 30, 2017.