Utricularia gibba

Utricularia gibba

The dwarf - water bladderwort (Utricularia gibba ) is a species of the genus of water hoses ( Utricularia ). This carnivorous plant thrives as aquatic plant worldwide mainly in the tropics and subtropics.

  • 4.1 Notes and references

Description

Vegetative characteristics

The dwarf water hose is an annual or perennial, herbaceous plant with few pfriemförmigen rhizoids. It forms a short, barely divided, 0.5 to 1.5 cm long leaves on thin stolons from. The 20 cm long stolons swim freely in open water or are mats as the flooded floor. It forms stalked, compared to Utricularia vulgaris few traps, which are characterized by two dorsally located, richly branched appendages. The traps are egg-shaped with a length of 1 to 2.5 mm.

Generative features

The 1-30 cm long, erect, racemose inflorescence with one to six flowers are usually about, rarely below the water surface. The inflorescence stem has approximately halfway up a usually, rarely two or none, about 1 mm long scale, similar to a bract. The hermaphrodite flowers are zygomorphic and fünfzählig double perianth. The wide with a length of 1 to 3 mm oval to circular calyx teeth are almost identical. The five yellow, often marked with reddish nerves petals are 4-25 mm long. The crown is two-lipped. The spur is narrow - conical or cylindrical and slightly shorter to much longer than the Kronunterlippe. The capsule fruit is roundish.

Dissemination

Utricularia gibba growing worldwide in the tropics and subtropics. Northward radiates the distribution area of up to Canada, Spain, Portugal, Israel, China and Japan, south to Argentina, South Africa, Australia and New Zealand.

System

The first publication of Utricularia gibba was made in 1753 by Carl Linnaeus in Species Plantarum, 1, pp. 18 Utricularia gibba L. Synonyms for are: . Vesiculina gibba (L.) Raf, Utricularia exoleta R.Br., Utricularia gibba subsp. exoleta ( R.Br. ) P.Taylor, Utricularia biflora Lam Utricularia gibba .. belongs to the section in the subgenus Utricularia Utricularia within the genus Utricularia

Swell

  • Barthlott, Porembski, Seine, Theisen: carnivores, biology and culture of carnivorous plants, Eugen Ulmer GmbH & Co. Stuttgart 2004 ISBN 3-8001-4144-2
  • R. Rowe & EA Brown: Utricularia gibba in New South Wales Flora Online from Royal Botanic Gardens & Domain Trust, Sydney.
Asterids Perennial plant
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