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Utricularia rigida is a small to medium-sized perennial, rheophytic carnivorous plant that belongs to the genus Utricularia. U. rigida is endemic to western tropical Africa, where it can be found in Côte d'Ivoire, Guinea, Guinea-Bissau, Mali, Nigeria, Senegal, and Sierra Leone. It grows as a rheophyte on inclined rock faces in swiftly running water at altitudes from near sea level to 1,250 m (4,101 ft). It was originally described and published by Ludwig Benjamin in 1847. It is distinguished from the other species in the section, U. tetraloba, by having only two lower lip corolla lobes as opposed to U. tetraloba's four.
Utricularia adpressa · Utricularia albiflora · Utricularia albocaerulea · Utricularia alpina · Utricularia ameliae · Florida purple bladderwort · Utricularia andongensis · Utricularia antennifera · Utricularia appendiculata · Utricularia arcuata · Utricularia arenaria · Utricularia arnhemica
Text excerpted from the Wikipedia article Utricularia rigida by its contributors, under CC BY-SA 4.0; the excerpts are shared under the same licence.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.
