Flaveria is a genus of plants in the family Asteraceae.Jussieu, Antoine Laurent de. 1789. Genera Plantarum 186–187 in LatinTropicos, Flaveria Juss. They are sometimes called yellowtops. Some are annual or perennial herbs and some are shrubs. They bear yellow flowers in heads, with zero, one, or two ray florets in each head. These plants are found in the Americas, Asia, Africa, and Australia.Floira of North America Vol. 21 Page 247 Flaveria JussieuFlora of China Vol. 20-21 Page 855 黄顶菊属 huang ding ju shu Flaveria Jussieu, Gen. Pl. 186. 1789.
While some members of this genus use the more common carbon fixation pathway, others are plants, and some are intermediate. With closely related species exhibiting different forms of metabolism, Flaveria has been a model genus for studies on the evolution of photosynthesis. A monograph by A.M. Powell from 1978A.M. Powell. 1978. Systematics of Flaveria (Flaveriinae-Asteraceae. Annals of the Missouri Botanical Garden 65: 590–636 is the most comprehensive study of morphology and biogeography for the Flaveria species to date. Molecular phylogenetic studies have clarified many of the evolutionary relationships between Flaveria species.
SpeciesBiota of North America Program 2013 county distribution mapsThe Plant List search for Flaveria Flaveria angustifolia - Mexico (Oaxaca, Puebla, Guerrero); – intermediate Flaveria anomala - Mexico (San Luis Potosí, Nuevo León, Durango, Zacatecas) Flaveria australasica - speedyweed - Australia; Flaveria bidentis - coastal plain yellowtops - South America, Galápagos, West Indies, United States (Florida Georgia Alabama); Flaveria brownii - Brown's yellowtops - southern Texas; -like Flaveria campestris - alkali yellowtops - USA (Arizona New Mexico Texas Utah Colorado Kansas Missouri Indiana) Flaveria chlorifolia - clasping yellowtops - Mexico (Chihuahua), New Mexico Texas; – intermediate Flaveria cronquistii - Mexico (Oaxaca, Puebla) Flaveria floridana - Florida yellowtops - Florida; – intermediate Flaveria haumanii - Chile, Argentina Flaveria intermedia - Mexico (Durango) Flaveria kochiana - Mexico (Oaxaca); Flaveria linearis - narrowleaf yellowtops - Cuba, Bahamas, Florida, Yucatán Peninsula Flaveria maritima Kunth Flaveria mcdougallii Theroux, Pinkava & D.J.Keil Flaveria oppositifolia - Mexico (Chihuahua, Coahuila, Hidalgo, Nuevo León, San Luis Potosí), Texas Flaveria palmeri - Mexico (Coahuila); -like Flaveria pringlei - Mexico (Puebla, Oaxaca, Guerrero) Flaveria pubescens - Mexico (San Luis Potosí, Tamaulipas); – intermediate Flaveria ramosissima - Mexico (Puebla, Oaxaca); – intermediate Flaveria robusta - Mexico (Colima) Flaveria sonorensis - Mexico (Chihuahua, Sonora); – intermediate Flaveria trinervia - clustered yellowtops - Mexico, Belize, South America, West Indies, California Arizona New Mexico Texas Missouri Florida South Carolina Virginia Maryland Massachusetts); Flaveria vaginata B.L.Rob. & Greenm.; -like
References
External links USDA Plants Profile for Flaveria Jepson Manual Treatment of Flaveria