Constancea
woolly sunflower
decumbent to ± erect, branched from bases or throughout (densely white-tomentose to glabrate).
cauline; alternate;
petiolate;
blades broadly ovate, 1–2-pinnately lobed (lobes oblong or oblanceolate to linear), ultimate margins entire (somewhat revolute, apices ± rounded), faces white-tomentose (adaxial often glabrescent).
cylindric to campanulate, 3–5 mm diam.
flat to convex, shallowly pitted, glabrous, epaleate.
4–9, pistillate, fertile;
corollas yellow.
10–25+, bisexual, fertile;
corollas yellow, tubes shorter than campanulate or narrowly funnelform throats, lobes 5, deltate.
persistent, 8–16 in ± 2 series (± erect in fruit, distinct, oblong to linear, ± herbaceous, ± keeled).
radiate, (50–100+) in corymbiform or paniculiform arrays.
(blackish, dull) obpyramidal to clavate, ± scabrellous to glabrate;
pappi persistent, of 2–6+ unequal (or 2 opposite, longer, and ± equal), basally connate, oblong to subulate scales (tips acute to erose).
= 19.
Constancea
Species 1.
Recognition of Constancea is based on morphologic, cytologic, and molecular evidence for polyphyly of Eriophyllum if E. nevinii is included. Constancea has characteristics found in other, closely related x = 19 “helenioid” genera that are unusual or absent in the clade represented by Eriophyllum, Pseudobahia, and Syntrichopappus, such as leaves with well-developed petioles, phyllaries in more than one series and more than the number of ray florets, and pappus scales unequal or a longer pair opposite and ± equal. The previously suggested close relationship between Constancea and another coastal subshrub, E. staechadifolium, is untenable.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
CA
WildflowerSearch
iNaturalist
USDA Plants Database
