Species: Utricularia gibba
Humped Bladderwort
Species
Show on Lists
Encyclopedia of Puget Sound
Classification
Kingdom
Plantae
Phylum
Anthophyta
Class
Dicotyledoneae
Order
Scrophulariales
Family
Lentibulariaceae
Genus
Utricularia
NatureServe
Classification
Informal Taxonomy
Plants, Vascular - Flowering Plants - Bladderwort Family
Formal Taxonomy
Plantae - Anthophyta - Dicotyledoneae - Scrophulariales - Lentibulariaceae - Utricularia - Following Kartesz (1999), this species includes the plants in some (earlier) works considered as the separate species Utricularia biflora. Kartesz (1999) also includes U. fibrosa Walt. (accepted as distinct in Kartesz (1994)), U. obtusa Sw. and U. pumila Walt and places U. fibrosa Britt in U. striata. The treatment in Weakley (2010 draft) includes U. fibrosa Walt. in U. striata and accepts U. biflora as distinct.
Ecology and Life History
Short General Description
Small aquatic plant with delicate, branching, submerged stems bearing a few tiny inflated bladders, and flowering stems borne above the water, with 1-3 yellow 2-lipped flowers.
Reproduction Comments
Reproduction is sexual, from perfect flowers. The flowers display specialization for insect pollination (Proctor and Yeo 1973). The seeds are probably water-dispersed.
Conservation Status
NatureServe Global Status Rank
G5
Global Status Last Reviewed
1995-03-14
Global Status Last Changed
1988-02-11
Distribution
Conservation Status Map
<img src="http://www.natureserve.org/explorer/servlet/GetMapGif?CA.BC=S3&CA.MB=SU&CA.NB=S3&CA.NS=S3&CA.ON=S4&CA.QC=S3&US.AL=SNR&US.AR=SNR&US.CA=SNR&US.CT=SNR&US.DE=S3&US.DC=S1&US.FL=SNR&US.GA=SNR&US.HI=SE&US.ID=SNR&US.IL=SNR&US.IN=SNR&US.IA=SH&US.KS=S2&US.KY=SNR&US.LA=SNR&US.ME=SNR&US.MD=SNR&US.MA=SNR&US.MI=SNR&US.MN=S4&US.MS=SNR&US.MO=SNR&US.NH=SNR&US.NJ=S3&US.NY=S5&US.NC=SNR&US.OH=SNR&US.OK=SNR&US.OR=S1&US.PA=S4&US.RI=S1&US.SC=SNR&US.TN=SNR&US.TX=SNR&US.VT=S3&US.VA=S5&US.WA=SNR&US.WV=S2&US.WI=SNR" alt="Conservation Status Map" style="width: 475px; height: auto;" />
Global Range
Nova Scotia to Ontario and Minnesota, south to Florida, west to Iowa, Missouri, Kansas, Oklahoma and Texas; in the west, from British Columbia south to California (where it was probably introduced - Hickman 1993). Also in Mexico, Central and South America and the West Indies, including Jamaica, Puerto Rico, and the Bahamas. Also in the Old World (Africa, Asia).