Sanvitalia
creeping zinnia
prostrate to erect, branched from bases or ± throughout.
cauline; opposite;
petiolate or sessile;
blades obovate or spatulate to linear, bases rounded to ± cuneate, margins entire [toothed or lobed], faces hairy.
hemispheric to ± rotate, 4–12+ mm diam.
convex to conic, paleate (paleae conduplicate, scarious).
5–20, pistillate, fertile;
corollas white or yellow (laminae sessile, persistent, becoming papery).
15–60, bisexual, fertile;
corollas distally yellow to orange (sometimes drying white), tubes much shorter than funnelform throats, lobes 5, deltate.
persistent, 8–21 in 2–3 series (lanceolate to linear, outer distally herbaceous, others each with stiff, subulate appendage).
radiate, borne singly.
± terete or obscurely 3–4-angled to compressed or flattened (all usually tuberculate and usually bearing uncinate hairs; none, some, or all in each head winged);
pappi persistent, of 3–4 awns.
= 8, 11.
Sanvitalia
Species 5 (3 in the flora).
(Discussion copyrighted by Flora of North America; reprinted with permission.)
1. Phyllaries 8–11; ray cypselae subterete, obscurely 3-angled, sulcate on each angle and on abaxial faces | S. abertii |
1. Phyllaries 12–21; ray cypselae 3-angled (clearly 3-faced, adaxial faces often 2–3-nerved) | → 2 |
2. Disc cypselae strongly dimorphic within heads: outer wingless, inner 1–2-winged | S. procumbens |
2. Disc cypselae ± monomorphic within heads, ± 4-angled to laterally compressed, none winged | S. ocymoides |
CA
WildflowerSearch
iNaturalist
USDA Plants Database
