Flaveria: Difference between revisions

Flaveria
	File:Flaveria trinervia.jpg
	Flaveria trinervia
Scientific classification
Kingdom:	Plantae
Division:	Magnoliophyta
Class:	Magnoliopsida
Order:	Asterales
Family:	Asteraceae
Genus:	Flaveria; Juss.
Species
	About 21; See text.

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Revision as of 23:58, 25 April 2008

Flaveria is a genus of plants in the sunflower family. They are sometimes called yellowtops. Some are annual or perennial herbs and some are shrubs. They bear yellow flowers. These plants are found in the Americas, Asia, Africa, and Australia. 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 published by A. M. Powell in 1978 (Systematics of Flaveria (Flaveriinae-Asteraceae) in Annals of the Missouri Botanical Garden) is the most comprehensive study of morphology and biogeography for the Flaveria species to date. A recent phylogenetic study published by A. McKown et al. in 2005 (Phylogeny of Flaveria (Asteraceae) and inference of C4 photosynthesis evolution in American Journal of Botany) clarifies many of the evolutionary relationships between Flaveria species.

Selected species:

Flaveria australasica - speedyweed
Flaveria bidentis - coastal plain yellowtops
Flaveria brownii - Brown's yellowtops
Flaveria campestris - alkali yellowtops
Flaveria chloraefolia - clasping yellowtops
Flaveria floridana - Florida yellowtops
Flaveria linearis - narrowleaf yellowtops
Flaveria macdougalii - Mcdougall's yellowtops *this is currently not considered a Flaveria species (see McKown et al. 2005)
Flaveria pringlei
Flaveria sonorensis
Flaveria trinervia - clustered yellowtops

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 About 21; See text.
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-'''''Flaveria''''' is a genus of plants in the [[Asteraceae|sunflower family]]. They are sometimes called '''yellowtops'''. Some are annual or perennial herbs and some are shrubs. They bear yellow flowers. These plants are found in the Americas, Asia, Africa, and Australia. Some members of this genus exhibit [[C3 carbon fixation]], while others are [[C4 carbon fixation|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 published by A. M. Powell in 1978 (Systematics of Flaveria (Flaveriinae-Asteraceae) in Annals of the Missouri Botanical Garden) is the most comprehensive study of morphology for the Flaveria species. A recent phylogenetic study published by A. McKown et al. in 2005 (Phylogeny of Flaveria (Asteraceae) and inference of C4 photosynthesis evolution in American Journal of Botany) clarifies many of the evolutionary relationships between Flaveria species.
+'''''Flaveria''''' is a genus of plants in the [[Asteraceae|sunflower family]]. They are sometimes called '''yellowtops'''. Some are annual or perennial herbs and some are shrubs. They bear yellow flowers. These plants are found in the Americas, Asia, Africa, and Australia. Some members of this genus exhibit [[C3 carbon fixation]], while others are [[C4 carbon fixation|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 published by A. M. Powell in 1978 (Systematics of Flaveria (Flaveriinae-Asteraceae) in Annals of the Missouri Botanical Garden) is the most comprehensive study of morphology and biogeography for the Flaveria species to date. A recent phylogenetic study published by A. McKown et al. in 2005 (Phylogeny of Flaveria (Asteraceae) and inference of C4 photosynthesis evolution in American Journal of Botany) clarifies many of the evolutionary relationships between Flaveria species.
 Selected species: