370. Venegasia de Candolle in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. 6: 43. 1838.
[For "rev. Patr. Mich. Venegas Hispani," 1680–1764, "qui primus notitiam naturalem civilemque circà Californiam scripsit"]
John L. Strother
Subshrubs or shrubs, 50–150(–250+) cm. Stems erect. Leaves cauline; opposite (proximal) or alternate (most); petiolate; blades (3-nerved) rounded-deltate or cordate to ovate, margins toothed or subentire, faces: abaxial puberulent and/or gland-dotted. Heads radiate, borne singly or in ± corymbiform arrays. Involucres hemispheric to globose, 12–25+ mm diam. Phyllaries persistent (all or outer), 20–40+ in 3–4+ series (at least outer reflexed in fruit, outer rotund to oblong, herbaceous-foliaceous, inner oblanceolate, membranous or scarious, basally indurate). Receptacles flat or convex, pitted (pubescent), epaleate. Ray florets 12–34, pistillate, fertile; corollas yellow. Disc florets 35–150+; bisexual, fertile; corollas yellow, tubes (densely glandular-hairy at bases) shorter than campanulate to narrowly urceolate throats, lobes 5, ovate-deltate. Cypselae clavate or fusiform, sometimes arcuate, obscurely 4–5-angled, ca. 20-nerved, glabrous, minutely papillose; pappi 0. x = 19.
Species 1: California, nw Mexico.
SELECTED REFERENCE
Turner, B. L. and D. Zippin. 1992. Taxonomic study of Venegasia (Asteraceae: Helenieae). Sida 15: 223–229.
