| Author | L. | |
| Distribution | This species is on the NCNHP Watch List, as W3 -- not conclusively documented in the state. In May of 2022, B.A. Sorrie searched SERNEC and found this record: Columbus County, sphagnous bog at Delco, 4 April 1939, R.K. Godfrey 7084 (NY). There was no image attached to this record. No doubt this, or a duplicate specimen, was seen by Peter Taylor, the monographer of the genus in 1989, to which Weakley (2024) was referring when saying "This species was reported for NC by Taylor (1989)."
"Se. NC south to s. FL, west to TX" (Weakley 2024), plus into South America and even in Africa.
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| Abundance | Very rare, perhaps historical. Aquatic bladderworts are often overlooked and so this location must be searched before declaring the species to be Historical in NC. | |
| Habitat | "In deep water of natural lakes and ponds" (Weakley 2024). The NC specimen label says a "sphagnous bog". | |
| Phenology | Blooms and fruits mainly in August. | |
| Identification | This bladderwort has very leafy/fibrous and often long branches that float on the water or are submerged just below; some branches are over a foot or two long. The yellow flowers grow on a slender stem a few inches (4-10 inches) off the water, in a tight cluster. Each flower averages about 2/3-inch across. Unlike many other bladderworts, each plant of this species floats unattached to the bottom of the body of water. | |
| Taxonomic Comments | None
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| Other Common Name(s) | Flatstem Bladderwort | |
| State Rank | SU [SH] | |
| Global Rank | G5 | |
| State Status | W3 | |
| US Status | | |
| USACE-agcp | OBL link |
| USACE-emp | OBL link |
