Tridens chapmanii (Small) Chase
Detail
- Family
- Poaceae
- Botanical Name
- Tridens chapmanii (Small) Chase
- Common Name
- Chapman's Purpletop, Chapman's Redtop
- Synonym(s)
- Tridens flavus (L.) A.S. Hitchc. var. chapmanii (Small) Shinners
- Flora of Virginia Name/Status
- Tridens chapmanii (Small) Chase
- Comments
- Although FNA treats this taxon as a variety of T. flavus, it seems abundantly distinct and we therefore follow Weakley (2020) and Flora of Virginia in treating it as a species. Tridens chapmanii is similar to T. flavus but has stiff panicle branches, long-pedicelled spikelets, and densely pubescent pulvini, and is never weedy. The two species are easily discernable when growing in close proximity.
- Habitat
- Dry, open sandy forests (including maritime forests), sandhill woodlands, sandy clearings, and dry, calcareous shell-marl slopes. Rare, s. and c. Coastal Plain. Known from historical collections in Southampton County and from the cities of Suffolk and Virginia Beach, Tridens chapmanii was recently rediscovered in a dry, calcareous, shell-rich woodland in James City County and a dry, sandy, fluvial terrace woodland in New Kent County. Although historical Virginia collections are all from sandy habitats, this taxon is also known from Coastal Plain calcareous woodlands in Maryland.
- Native Status
- Native
To save this map, right-click (control-click for Mac users) on the map and choose "Save Image As...".