| Author | R.M. Harper | |
| Distribution | Southern Coastal Plain. Known only from Bladen (a powerline) and Brunswick (Green Swamp) counties. Neither population has been seen for over a decade, despite some searching.
Coastal Plain, from southeastern NC to northeastern FL. | |
| Abundance | Known only from two sites in the state, but both have been searched for in recent years without success. The Brunswick population was last seen in 1980 and the Bladen one in 2004. Thus, the State Rank has been moved by the NCNHP from S1 to now -- as of late 2022 -- SH (Historical). This is a State Endangered species, and with a Global Rank of just G2, it is a very rare species across its small range. | |
| Habitat | Wet Longleaf Pine-Wiregrass savanna; powerline clearing with seepage. |
| Phenology | Flowering and fruiting late August-October. | |
| Identification | Stems typically grow 1.5-2.5 feet tall, with 1-4 terminal heads that have yellow ray florets and distinctly red-purple disk florets. Helenium brevifolium may have red-purple disk florets, but it blooms in spring. One-flower Honeycomb-head (B. uniflora) is very similar but has yellow disk florets. | |
| Taxonomic Comments | None
| |
| Other Common Name(s) | Purpledisk Honeycomb-head, Bog Honeycomb-head | |
| State Rank | SH | |
| Global Rank | G2 | |
| State Status | E | |
| US Status | | |
| USACE-agcp | FACW link |
| USACE-emp | FACW link |
