Rudbeckia mohrii

Rudbeckia mohrii
Rudbeckia mohrii in bloom
Apparently Secure
Apparently Secure (NatureServe)[1]
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Embryophytes
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Tribe: Heliantheae
Genus: Rudbeckia
Species:
R. mohrii
Binomial name
Rudbeckia mohrii

Rudbeckia mohrii is a species of flowering plant in the family Asteraceae. It is endemic to the southeastern United States, where it occurs in Florida and Georgia.[2]

Description

Rudbeckia mohrii is a perennial herb. Like other species in the genus Rudbeckia, it produces composite flower heads consisting of a central disk surrounded by ray florets.

Habitat and ecology

The species occurs in wetland habitats of the southeastern Coastal Plain, particularly in wet pine savannas and wet flatwoods.[3] It is considered an obligate wetland species (OBL), occurring almost always in hydric conditions.[3]

The species has also been documented from cypress pond habitats within its range.[1]

Flowering occurs from June through November.[3]

Distribution

Rudbeckia mohrii is endemic to the southeastern United States, where it occurs from eastern Georgia to the Florida Panhandle.[3][2]

Occurrence data compiled by the Global Biodiversity Information Facility (GBIF) include hundreds of records from herbarium specimens and verified observations across its range.[4]

Taxonomy

Rudbeckia mohrii was first described by Asa Gray in 1882 in the Proceedings of the American Academy of Arts and Sciences.[5] The type specimen was collected by Charles T. Mohr in Florida and is preserved in the Gray Herbarium (GH).[5]

A synonym of the species is Rudbeckia bupleuroides Shuttlew. ex Chapm.[2]

The species is widely accepted by modern taxonomic authorities, including the Global Biodiversity Information Facility (GBIF).[2][4]

Conservation

According to NatureServe, Rudbeckia mohrii is ranked G4 (apparently secure), indicating that it is relatively widespread or abundant within its limited range.[1] It is considered vulnerable (S3) in Florida and has not been formally ranked in Georgia.[1]

References

  1. 1 2 3 4 "Rudbeckia mohrii". NatureServe Explorer. Retrieved 10 April 2026.
  2. 1 2 3 4 Cite error: The named reference POWO_mohrii was invoked but never defined (see the help page).
  3. 1 2 3 4 "Rudbeckia mohrii". Flora of the Southeastern United States. Retrieved 10 April 2026.
  4. 1 2 "Rudbeckia mohrii A.Gray". Global Biodiversity Information Facility. Retrieved 11 April 2026.
  5. 1 2 "Rudbeckia mohrii A.Gray". International Plant Names Index. Retrieved 10 April 2026.