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| Penstemon | |
|---|---|
| |
| Penstemon nitidus | |
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Lamiales |
| Family: | Plantaginaceae |
| Tribe: | Cheloneae |
| Genus: | Penstemon Schmidel |
| Species | |
| Synonyms[1] | |
| |
Penstemon /ˈpɛnstɪmən/,[2] the beardtongues, is a large genus of roughly 280 species of flowering plants native to North America from northern Canada to Central America. It is the largest genus of flowering plants endemic to North America.[3][4] As well as being the scientific name, penstemon is also widely used as a common name for all Penstemon species alongside beardtongues.
Formerly placed in the family Scrophulariaceae by the Cronquist system, new genetic research has placed it in the vastly expanded family Plantaginaceae. The total number of species is uncertain due to on going research into if some of the named species are actually subspecies or misidentifications of already identified species.
- ^ POWO 2024.
- ^ Brenzel 1995, p. 607.
- ^ Jepson & Holmgren 1993, p. 1050.
- ^ Wetherwax & Holmgren 2012, p. 1017.