Difference between revisions of "Sartwellia"
Smithsonian Contr. Knowl. 3(5): 122, plate 6. 1852.
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|family=Asteraceae | |family=Asteraceae | ||
|illustrator=Bee F. Gunn | |illustrator=Bee F. Gunn | ||
| + | |illustration copyright=Flora of North America Association | ||
|distribution=sw United States;Mexico. | |distribution=sw United States;Mexico. | ||
|reference=turner1971a | |reference=turner1971a | ||
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|publication year=1852 | |publication year=1852 | ||
|special status= | |special status= | ||
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|tribe=Asteraceae tribe Heliantheae | |tribe=Asteraceae tribe Heliantheae | ||
|subtribe=Asteraceae (tribe Heliantheae) subtribe Flaveriinae | |subtribe=Asteraceae (tribe Heliantheae) subtribe Flaveriinae | ||
Latest revision as of 20:13, 5 November 2020
Perennials, 10–30 cm (± succulent). Stems ascending to erect, branched from at or near bases. Leaves cauline; opposite; sessile; blades linear to filiform, margins entire, faces glabrous or glabrescent. Heads radiate, in tight, corymbiform arrays. Involucres campanulate, 2–3 mm diam. Phyllaries persistent, 5 in 1 series (usually yellowish, sometimes greenish, oblong to obovate, subequal, ± membranous). Receptacles flat, epaleate. Ray florets 3–5, pistillate, fertile; corollas yellow. Disc florets 5–15, bisexual, fertile; corollas yellow, tubes shorter than or equaling funnelform throats, lobes 5, ± deltate. Cypselae ± cylindric (10-ribbed); pappi persistent, usually of 5 muticous scales alternating with 5 subulate scales or coarse bristles, sometimes the 10 elements connate, forming a ± erose cup. x = 18.
Distribution
sw United States, Mexico.
Discussion
Species 3 (1 in the flora).