Brintonia
| 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 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.[1][3] It is native to the southeastern United States, where it is distributed in Alabama, Florida, Georgia, Louisiana, and Mississippi.[1][4]
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.[1]
The plant occurs on the Gulf Coastal Plain in sandy, swampy habitat.[3]
It is sometimes still treated as a species of Solidago,[5] but DNA evidence and several aspects of its morphology support its separation from that genus.[2]
References
[edit]- ^ a b c d Semple, John C. (2006). "Brintonia discoidea". In Flora of North America Editorial Committee (ed.). Flora of North America North of Mexico (FNA). Vol. 20. New York and Oxford: Oxford University Press – via eFloras.org, Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
- ^ a b Semple, John C. (2006). "Brintonia". In Flora of North America Editorial Committee (ed.). Flora of North America North of Mexico (FNA). Vol. 20. 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.
- ^ Kartesz, John T. (2014). "Brintonia discoidea". County-level distribution map from the North American Plant Atlas (NAPA). Biota of North America Program (BONAP). Retrieved July 12, 2025.
- ^ NatureServe (July 3, 2025). "Solidago discoidea". NatureServe Explorer. Arlington, Virginia. Retrieved July 12, 2025.
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