Difference between revisions of "Orochaenactis"
Contr. U.S. Natl. Herb. 4: 134, plate 10. 1893.
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|family=Asteraceae | |family=Asteraceae | ||
|illustrator=John Myers | |illustrator=John Myers | ||
| + | |illustration copyright=Flora of North America Association | ||
|distribution=Calif. | |distribution=Calif. | ||
|reference=None | |reference=None | ||
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|publication year=1893 | |publication year=1893 | ||
|special status= | |special status= | ||
| − | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/ | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/eaa6e58056e40c9ef614d8f47aea294977a1a5e9/coarse_grained_fna_xml/V19-20-21/V21_1039.xml |
|tribe=Asteraceae tribe Heliantheae | |tribe=Asteraceae tribe Heliantheae | ||
|subtribe=Asteraceae (tribe Heliantheae) subtribe Chaenactidinae | |subtribe=Asteraceae (tribe Heliantheae) subtribe Chaenactidinae | ||
Revision as of 19:32, 16 December 2019
Annuals, 1–25 cm. Stems erect to spreading, simple or ± branched (very slender). Leaves cauline; opposite (proximal) or alternate; obscurely petiolate or sessile; blades linear to narrowly oblong-oblanceolate, margins entire, faces tomentose to glabrate, gland-dotted. Heads discoid, borne singly or (2–5) in clusters (at stem tips). Involucres cylindric or narrowly turbinate, 3–4(–6) mm diam. Phyllaries persistent, 4–7 in ± 1 series (distinct, oblong, unequal, glandular-puberulent). Receptacles ± flat, ± knobby, epaleate. Ray florets 0. Disc florets 4–9; corollas yellow, lobes 5, short-triangular (anther bases short-sagittate, appendages short-triangular; style branches linear, tapering). Cypselae terete, linear-clavate, narrowly ribbed, minutely glandular-puberulent, glabrescent; pappi falling (in rings), of 11–17 (basally connate) oblanceolate, fringed, obtuse scales. x = 9.
Discussion
Species 1.
Selected References
None.