Vascular Plants of North Carolina
Account for Lesser Bladderwort - Utricularia minor   L.
Members of Lentibulariaceae:
Members of Utricularia with account distribution info or public map:
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Section 6 » Order Scrophulariales » Family Lentibulariaceae
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AuthorL.
DistributionKnown only from one collection in 1970 from Watauga County, by Radford and Moore. This is a major southward disjunction from the rest of the range.

This Northern species has a very wide range from coast to coast. It occurs across Canada and south to NJ, PA, OH, MO, and the Western states. The disjunction to northwestern NC is several hundred miles.
AbundanceExtremely rare when discovered and collected in 1970, and now considered to be of historical occurrence. It is a State Special Concern species.
HabitatThe NC record was from a high elevation bog, at roughly 4300 feet elevation. This is a species of very shallow water, in its range, but occurs in bogs, fens, and other cool sites.
See also Habitat Account for Mountain Bogs
PhenologyBlooms from April into June, and fruits shortly after flowering.
IdentificationThis is a very small species of very shallow, cold water habitats, with a flowering stem emerging from the water to a height of 4-6 inches high. The leaves creep horizontally on the bottom of the water, normally just an inch or several inches below the surface. This species is identified by its different flower shape from all other NC bladderworts. The 2-6 yellow flowers have a much longer lower lip than the upper; the flower is usually extended horizontally, such that the 1/4-inch long lower lip extends almost like a small tongue well beyond the short upper lip. Most other species have a more rounded or squared flower shape, with the lower lip being wide and often semi-circular in shape. Check references for other characters that separate this from other yellow-flowered bladderworts. The site where found in 1970 is home to a number of other southerly disjunct species, including Canada Yew (Taxus canadensis); many have their only NC occurrence there.
Taxonomic CommentsNone

Other Common Name(s)Small Bladderwort
State RankSH
Global RankG5
State StatusSC-H
US Status
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B.A. SorriePhoto taken 1991, boggy fen in Stockbridge, MA. Photo_non_NCPhoto_non_NC
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