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Chorisiva
Family:
Asteraceae
Images
not available
FNA
Resources
Annuals,
5-25(-40) cm.
Stems
erect, diffusely branched.
Leaves
cauline; mostly alternate; petiolate; blades ovate or deltate to lanceolate, usually 1-2-pinnately lobed (lobes lance-ovate to linear), ultimate margins entire or toothed, faces ± scabrellous, usually gland-dotted.
Heads
± discoid, mostly borne singly (in leaf axils or remote from axils, ± scattered).
Involucres
± turbinate to campanulate, 2-3+ mm diam.
Phyllaries
persistent, 3-8+ in 1-2+ series, distinct, outer 3+ herbaceous, inner scarious to membranous, glabrous.
Receptacles
convex; paleae linear to setiform, membranous, usually with dilated, strigillose or ciliate tips.
Pistillate florets
2-3(-5); corollas yellowish, tubular.
Functionally staminate florets
5-10+; corollas yellowish, funnelform, strigillose and gland-dotted distally, lobes 5, erect (filaments ± connate, anthers weakly coherent or distinct).
Cypselae
obovoid, obcompressed, smooth or corky-tuberculate, glabrous (not corky-winged, not gland-dotted);
pappi
0.
Chorisiva nevadensis
Images
not available
Map not
Available