Difference between revisions of "Venegasia"
in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. 6: 43. 1838.
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|publication year=1838 | |publication year=1838 | ||
|special status= | |special status= | ||
| − | |source xml=https:// | + | |source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/bb6b7e3a7de7d3b7888a1ad48c7fd8f5c722d8d6/coarse_grained_fna_xml/V19-20-21/V21_970.xml |
|tribe=Asteraceae tribe Heliantheae | |tribe=Asteraceae tribe Heliantheae | ||
|subtribe=Asteraceae (tribe Heliantheae) subtribe Chaenactidinae | |subtribe=Asteraceae (tribe Heliantheae) subtribe Chaenactidinae | ||
Revision as of 21:03, 27 May 2020
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.
Distribution
Calif., nw Mexico.
Discussion
Species 1.