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Utricularia gibba

L. (1753)

This name is accepted

Kingdom: Viridiplantae Phylum: Magnoliophyta Class/Clade: Eudicot-Asterids Order: Lamiales Family: Lentibulariaceae Genus: Utricularia

bladderwort

Description

Key Characters:

Growth Form: Aquatic or subaquatic herbs, carnivorous, with special vegetative organs adapted for digestion of captured small insects or crustaceans.

Stems: Stems photosynthetic, delicate, creeping or floating.

Roots: Roots absent.

Leaves: Leaves absent. Alternate, crowded into a basal rosette, sometimes with tubular trap–leaves arising from the rhizome. Leaf-like organs forming entangled plumes of foliage up to 3 dm long, each one usually with 2–3 or more filiform segments up to 5 mm long and a few scattered bladders. Surfaces glabrous. Stipules absent.

Flowers: Flowers ca. 1–4 on scapes 5–15 cm long, pedicels elongating to 10–25 mm long in fruit. Flowers bisexual (perfect). Calyx zygomorphic, 2(4)lobed, usually more deeply cleft laterally, forming an upper and lower lip, largest lobe suborbicular, 2–4 mm long, persistent, accrescent. Corolla zygomorphic, bilabiate, the lobes imbricate, yellow, 6–12 mm long, lips subequal, projecting forward, spur oblong–conical, much shorter to somewhat longer than lower lip. Stamens 2; anthers monothecal or dithecal, the thecae usually confluent. Ovary superior, 2-carpellate, 1-celled, placentation free-central or basal; ovules (2–)numerous, anatropous; stigma unequally 2-lobed, papillate, wet.

Fruit: Capsules 2–4 mm in diameter; globose to ovoid; dehiscent by longitudinal slits or valves; circumscissile or indehiscent. Seeds (1–)numerous; winged; small; endosperm absent.

Ploidy: 2n = 28

Habitat: Known from a single collection made in 1983 in wet forest along the Stainback Highway; Hawaiʻi (Stemmermann et al. 6815; BISH); and apparently sparingly naturalized.

Elevation Range:

Historical Distribution

Synonyms (56)

Megopiza fornicata (Leconte) Raf. (1838)
Megopiza integra (Leconte) Raf. (1838)
Megopiza longirostris (Leconte) Raf. (1838)
Plesisa bipartita (Elliott) Raf. (1838)
Trilobulina crenata Raf. (1838)
Trilobulina fibrosa (Walter) Raf. (1838)
Utricularia alba Hoffmanns. ex Link (1820)
Utricularia ambigua A.DC. (1844)
Utricularia anomala A.St.-Hil. & Girard (1838)
Utricularia aphylla Ruiz & Pav. (1798)
Utricularia bifidocalcar R.D.Good (1924)
Utricularia biflora Roxb. (1820)
Utricularia bipartita Elliott (1816)
Utricularia conferta Hassk. (1855)
Utricularia crenata Vahl (1804)
Utricularia diantha Schult. (1822)
Utricularia diflora Roxb. (1814)
Utricularia elegans Wall. (1829)
Utricularia emarginata Benj. (1847)
Utricularia exoleta R.Br. (1810)
Utricularia exoleta var. lusitanica Kamienski (1902)
Utricularia fibrosa Walter (1788)
Utricularia filamentosa F.Dietr. (1823)
Utricularia fornicata Leconte (1824)
Utricularia furcata Pers. (1805)
Utricularia gayana A.DC. (1844)
Utricularia gibba f. natans Komiya (1972)
Utricularia gibba subsp. exoleta (R.Br.) P.Taylor (1961)
Utricularia gibbosa Hill (1772)
Utricularia gracilis Kunth (1818)
Utricularia integra Leconte (1824)
Utricularia kalmaloensis A.Chev. (1932)
Utricularia khasiana J.Joseph & Mani (1985)
Utricularia longirostris Leconte (1816)
Utricularia macrorhyncha Barnhart (1898)
Utricularia nagurae Makino (1913)
Utricularia natans Salzm. ex A.St.-Hil. & Girard (1839)
Utricularia natans var. rigida Salzm. (1839)
Utricularia obtusa Sw. (1788)
Utricularia pallens A.St.-Hil. & Girard (1838)
Utricularia pallens var. natans A.St.-Hil. & Girard (1837)
Utricularia parkeriana A.DC. (1844)
Utricularia pauciflora Blume (1826)
Utricularia pterosperma Edgew. (1847)
Utricularia pumila Walter (1788)
Utricularia riccioides A.Chev. (1912)
Utricularia roxburghii Spreng. (1824)
Utricularia saharunporensis Royle ex Oliv. (1859)
Utricularia secunda Benj. (1847)
Utricularia spirandra C.Wright ex Griseb. (1866)
Utricularia sumatrana Miq. (1859)
Utricularia tenuifolia Benj. (1847)
Utricularia tenuis Cav. (1799)
Utricularia tenuis var. poeppigii A.DC. (1844)
Utricularia tricrenata Baker ex Hiern (1900)
Vesiculina gibba (L.) Raf. (1838)

Uses and Culture

USES

  • Yes

Natural History

Statewide Status

Naturalized

Island Status

Hawai'i Naturalized

Dispersal Agents


Pollinators

Specimens

Bibliography

Name Published In: Sp. Pl.: 18 (1753)

Other References

Wagner et al. 1990:849 (H)

Occurrences

SNo. Scientific Name Scientific Name Authorship Locality Habitat Basis of Record Recorded By Record Number Island Source Date
1 Utricularia gibba L. ahualoa, coffee farm irrigation pond Pond dominated by Schoenoplectus mucronatus, Eleocharis obtusa, with Ludwigia palustris, Cuphea carthagenensis, Cyperus halpan, Persicaria glabra. PRESERVED_SPECIMEN uyehara, k.j. collector number: s.n. Hawaii BISH 9/24/2005
2 Utricularia gibba L. South Hilo distr., in H. Eunice Nursery in the Panaewa Farm Lots, 792 Kealakai St. Adventive in shallow water ponds with water lilies. PRESERVED_SPECIMEN Staples, G.W. Walsh, M. Collector Number: 1264 Hawaii BISH 2/8/2007
3 Utricularia gibba L. Ahualoa, coffee farm irrigation pond Pond dominated by Schoenoplectus mucronatus, Eleocharis obtusa, with Ludwigia palustris, Cuphea carthagenensis, Cyperus halpan, Persicaria glabra. PRESERVED_SPECIMEN Uyehara, K.J. Collector Number: s.n. Hawaii BISH 9/24/2005
4 Utricularia gibba L. South Hilo distr., in H. Eunice Nursery in the Panaewa Farm Lots, 792 Kealakai St. Adventive in shallow water ponds with water lilies. PRESERVED_SPECIMEN Staples, G. 1264 Hawaii BISH 2/8/2007
5 Utricularia gibba L. puna PRESERVED_SPECIMEN char, w.p. Hawaii BISH 11/1/1993
6 Utricularia gibba L. stainback hwy PRESERVED_SPECIMEN stemmermann, r.l. jacobi, j.d.; gerrish, g. collector number: 6815 BISH 11/4/1982
7 Utricularia gibba L. puna PRESERVED_SPECIMEN char, w.p. collector number: s.n. Hawaii BISH 11/1/1993
8 Utricularia gibba L. south hilo distr., in h. eunice nursery in the panaewa farm lots, 792 kealakai st. PRESERVED_SPECIMEN staples, g.w. walsh, m. collector number: 1264 Oahu BISH 2/8/2007
9 Utricularia gibba L. Ahualoa, coffee farm irrigation pond Pond dominated by Schoenoplectus mucronatus, Eleocharis obtusa, with Ludwigia palustris, Cuphea carthagenensis, Cyperus halpan, Persicaria glabra. PRESERVED_SPECIMEN Uyehara, K.J. s.n. Hawaii BISH 9/24/2005
10 Utricularia gibba L. Puna PRESERVED_SPECIMEN Char, W.P. s.n. Hawaii BISH 11/1/1993
11 Utricularia gibba L. Stainback Hwy mucky stagnant pond in trail to ohia dieback plot 24; rainforest; with Juncus, Eleocharis, and Hypericum PRESERVED_SPECIMEN Stemmermann, R.L. 6815 Hawaii BISH 11/4/1982
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