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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, erect to spreading, with coarse tack-shaped glands, and often simple glandular hairs, aromatic; generally self-sterile. Leaf: basal +- many, mostly deciduous by flowering, occasionally persistent, margins often curled under, and cauline, generally alternate and reduced distally on stem, +- sessile, +- linear, entire or sparsely toothed, +- scabrous, generally with longer stiff hairs, especially on proximal margins. Inflorescence: heads radiate, axillary, often +- sessile, and terminal, 1 or clustered; peduncle bracts linear or narrowly lanceolate to widely oblanceolate, margins thickened, rounded, defining a +- prominent central abaxial channel, especially proximally, +- bristly-ciliate, especially proximally, some or all with 1+ tack-like glands; phyllaries +- equal to shorter than paleae, each partly enfolding a ray fruit; receptacle +- flat, hairy; paleae in one series between ray and disk flowers, +- fused, forming a receptacle cup, phyllaries, paleae generally with abaxial simple and/or tack-like glands and appressed and/or spreading hairs. Ray Flower: 1--6; ray 2--12 mm, 3-lobed, white to rose or yellow, occasionally with red spot near base. Disk Flower: 1--25; corolla 2.5--10 mm, colored +- like rays; anthers generally purple, tips ovate to triangular; style branches long, bristly. Fruit: ray fruit 1.5--4 mm, +- 3-angled, adaxial face +- flat, abaxial face rounded to +- angled, pappus 0; disk fruit 2--4 mm, angled, base tapered, +- appressed-hairy to glabrous, pappus 0 or generally of 6--16 scales, all +- lanceolate or some blunt and shorter.
Species In Genus: +- 10 species: especially California (Oregon). Etymology: (Greek: cup gland)
eFlora Treatment Author: Robert L. Carr & Gerald D. Carr
Jepson Online Interchange
Key to CalycadeniaPrevious taxon: Calendula officinalis
Next taxon: Calycadenia fremontii
Citation for this treatment: Robert L. Carr & Gerald D. Carr 2016. Calycadenia, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=357, accessed on April 29, 2016.
Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on April 29, 2016.