Brintonia is a monotypic genus of flowering plants in the sunflower family, containing the single species Brintonia discoidea, named for Jeremiah Bernard Brinton.[2] It is known commonly as the rayless mock goldenrod.[3][4] It is native to the southeastern United States, where it is distributed in Alabama, Florida, Georgia, Louisiana, and Mississippi.[3][5]
| Brintonia | |
|---|---|
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Asterales |
| Family: | Asteraceae |
| Subfamily: | Asteroideae |
| Tribe: | Astereae |
| Genus: | Brintonia Greene |
| Species: | B. discoidea
|
| Binomial name | |
| Brintonia discoidea (Elliott) Greene
| |
| Synonyms[1] | |
| |
Brintonia discoidea is a perennial herb growing up to 1.5 meters tall from a thick rhizome. The erect, unbranched stem is lightly hairy. The alternately arranged leaves have rough-haired serrated blades up to 10 centimeters long on winged petioles. The inflorescence is a wide array of several flower heads. Each head contains up to 20 disc florets with bright green tubes and whitish or pinkish corollas and pinkish anthers. The fruit is a ribbed cypsela with a pappus of many white or purple-tipped bristles.[3]
The plant occurs on the Gulf Coastal Plain in sandy, swampy habitat.[4]
It is sometimes still treated as a species of Solidago,[6] but DNA evidence and several aspects of its morphology support its separation from that genus.[7]
References
edit- ^ The Plant List Brintonia discoidea (Elliott) Greene
- ^ Flora of North America Editorial Committee (ed.). "Brintonia". Flora of North America North of Mexico (FNA). New York and Oxford: Oxford University Press – via eFloras.org, Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
- ^ a b c Flora of North America Editorial Committee (ed.). "Brintonia discoidea". Flora of North America North of Mexico (FNA). New York and Oxford: Oxford University Press – via eFloras.org, Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
- ^ a b Brintonia. Astereae Lab. University of Waterloo.
- ^ Biota of North America Program 2014 county distribution map
- ^ Solidago discoidea.[permanent dead link] NatureServe. 2013.
- ^ Brintonia. Flora of North America.
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