Flaveria

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yellowtops
Starr 010520-0020 Flaveria trinervia.jpg
Flaveria trinervia
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Asterids
Order: Asterales
Family: Asteraceae
Tribe: Tageteae[1]
Genus: Flaveria
Juss. 1789 not J.F. Gmel. 1792[2]
Synonyms[1]

Flaveria is a genus of plants in the marigold family.[3][4] 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.[5] These plants are found in the Americas, Asia, Africa, and Australia.[5][6]

Some members of this genus exhibit C3 carbon fixation, 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[7] is the most comprehensive study of morphology and biogeography for the Flaveria species to date. A recent phylogenetic study[8] clarifies many of the evolutionary relationships between Flaveria species.

Species[1][9]
  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, USA (FL GA AL)
  5. Flaveria brownii - Brown's yellowtops - southern Texas
  6. Flaveria campestris - alkali yellowtops - USA (AZ NM TX UT CO KS MO IN)
  7. Flaveria chlorIfolia - clasping yellowtops - Mexico (Chihuahua), USA (NM TX )
  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 oppositifolia - Mexico (Chihuahua, Coahuila, Hidalgo, Nuevo León, San Luis Potosí), USA (Texas)
  15. Flaveria palmeri - Mexico (Coahuila)
  16. Flaveria pringlei - Mexico (Puebla, Oaxaca, Guerrero)
  17. Flaveria pubescens - Mexico (San Luis Potosí, Tamaulipas)
  18. Flaveria ramosissima - Mexico (Puebla, Oaxaca)
  19. Flaveria robusta - Mexico (Colima)
  20. Flaveria sonorensis - Mexico (Chihuahua, Sonora)
  21. Flaveria trinervia - clustered yellowtops - Mexico, Belize, South America, West Indies, USA (CA AZ NM TX MO FL SC VA MD MA)

References[edit]

  1. ^ a b c Flann, C (ed) 2009+ Global Compositae Checklist
  2. ^ Tropicos search for Flaveria
  3. ^ Jussieu, Antoine Laurent de. 1789. Genera Plantarum 186–187in Latin
  4. ^ Tropicos, Flaveria Juss.
  5. ^ a b Floira of North America Vol. 21 Page 247 Flaveria Jussieu
  6. ^ Flora of China Vol. 20-21 Page 855 黄顶菊属 huang ding ju shu Flaveria Jussieu, Gen. Pl. 186. 1789.
  7. ^ A.M. Powell. 1978. Systematics of Flaveria (Flaveriinae-Asteraceae. Annals of the Missouri Botanical Garden 65: 590–636
  8. ^ McKown et al. 2005. Phylogeny of Flaveria (Asteraceae) and inference of C4 photosynthesis evolution in American Journal of Botany)
  9. ^ Biota of North America Program 2013 county distribution maps

External links[edit]