| Author | (Walter) Trelease | |
| Distribution | Known only from Macon County ("Reinkes Place, Highlands") in 1938 and Buncombe County (specimen at WCUH, data withheld). However, as the Macon County record is from a cultivated specimen (according to Knapp et al., 2020), it is not included on the map below.
NC and TN, south to AL, MS, and LA. | |
| Abundance | Of historical occurrence. This is a State Special Concern - Historical species. | |
| Habitat | Moist rocky streambanks, clayey soils of montane woodlands and forests -- in shadier habitats than most other Marshallia species. | |
| Phenology | Flowering and fruiting May-July. Plants often form colonies from horizontal rhizomes. | |
| Identification | This species has the widest leaves of all the NC Barbara's-buttons -- up to 1.2 inches wide and lanceolate- to ovate-shaped, with an acuminate tip. Stems grow 1-2 feet tall, terminated by 1-5 heads of pink florets. | |
| Taxonomic Comments | None
| |
| Other Common Name(s) | Colonial Barbara's-buttons | |
| State Rank | SH | |
| Global Rank | G3 | |
| State Status | SC-H | |
| US Status | | |
| USACE-agcp | FACU link |
| USACE-emp | FACU link |
