What is "flaveria"

Flaveria is a genus of plants in the marigold family. 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.

Some members of this genus exhibit C plants, while others are C4 plants and some are intermediate. With closely related species exhibiting different forms of metabolism, this genus has been included in studies on the evolution of photosynthesis. A monograph is the most comprehensive study of morphology and biogeography for the Flaveria species to date. A recent phylogenetic study clarifies many of the evolutionary relationships between Flaveria species.

1. Flaveria angustifolia - Mexico ( Oaxaca, Puebla, Guerrero)
2. Flaveria anomala - Mexico ( San Luis Potosí, Nuevo León, Durango, Zacatecas)
3. Flaveria australasica - speedyweed - Australia
4. Flaveria bidentis - coastal plain yellowtops - South America, Galápagos, West Indies, United States ( Florida Georgia Alabama)
5. Flaveria brownii - Brown's yellowtops - southern Texas
6. Flaveria campestris - alkali yellowtops - USA ( Arizona New Mexico Texas Utah Colorado Kansas Missouri Indiana)
7. Flaveria chlorifolia - clasping yellowtops - Mexico ( Chihuahua), New Mexico Texas
8. Flaveria cronquistii - Mexico ( Oaxaca, Puebla)
9. Flaveria floridana - Florida yellowtops - Florida
10. Flaveria haumanii - Chile, Argentina
11. Flaveria intermedia - Mexico ( Durango)
12. Flaveria kochiana - Mexico ( Oaxaca)
13. Flaveria linearis - narrowleaf yellowtops - Cuba, Bahamas, Florida, Yucatán Peninsula
14. Flaveria maritima Kunth
15. Flaveria mcdougallii Theroux, Pinkava & D.J.Keil
16. Flaveria oppositifolia - Mexico ( Chihuahua, Coahuila, Hidalgo, Nuevo León, San Luis Potosí), Texas
17. Flaveria palmeri - Mexico ( Coahuila)
18. Flaveria pringlei - Mexico ( Puebla, Oaxaca, Guerrero)
19. Flaveria pubescens - Mexico ( San Luis Potosí, Tamaulipas)
20. Flaveria ramosissima - Mexico ( Puebla, Oaxaca)
21. Flaveria robusta - Mexico ( Colima)
22. Flaveria sonorensis - Mexico ( Chihuahua, Sonora)
23. Flaveria trinervia - clustered yellowtops - Mexico, Belize, South America, West Indies, California Arizona New Mexico Texas Missouri Florida South Carolina Virginia Maryland Massachusetts)
24. Flaveria vaginata B.L.Rob. & Greenm.