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Utricularia gibba Linnaeus. Shortspur Creeping Bladderwort. Phen: May-Sep. Hab: Ponds, lakes, and diches. Dist: QC west to WI, south to FL and LA; also apparently widespread in the West Indies and Central America and apparently the Old World tropics.

Origin/Endemic status: Native

Taxonomy Comments: Taylor (1989) includes U. biflora in U. gibba. Other authors have expressed doubts about the distinction, including RAB (‘doubtfully distinct’). Taylor suggests that "further research is clearly indicated, but to be at all meaningful, it must be conducted on a worldwide basis". I have here, for the moment, retained the two traditionally recognized species, though intermediates will be encountered.

Synonymy: = Bah, C, F, G, GrPl, Il, NcTx, RAB, S, Va, W, WV; > Utricularia fibrosa Walter – Tx; < Utricularia gibba L. – Ar, Fl6, FNA, K1, K3, K4, Mex, Mi, NE, NY, Pa, Tn, WH3, Schnell (2002b), Taylor (1989); > Utricularia gibba L. – Tx

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image of plant© Erik Danielson source | Original Image ⭷
image of plant© Erik Danielson source | Original Image ⭷
image of plant© Gary P. Fleming | Original Image ⭷