Bladderwort
Related Category: Plants
(bld´rwûrt´´, -wõrt´´), any plant of the genus Utricularia, insectivorous or carnivorous aquatic plants, many native to North America.
Bladderworts are submersed free-floating plants. There are about 200 species in the world, ranging in size from a few inches to several feet long. Tiny bladders attached to the leaves trap and digest very tiny animals.
Common Bladderwort (Greater Bladderwort)
Utricularia macrorhiza (Utricularia vulgaris) ...
Humped Bladderwort
Humped Bladderwort
Photo Courtesy USDA Plants Database
Flora, fauna, earth, and sky...
The natural history of the northwoods ...
Lentibulariaceae / Bladderwort Zigzag Bladderwort (Utricularia subulata)
Plant Type: This is a herbaceous plant which can reach 20cm in height (8inches). Stems underground with only the slender scape erect.
Family: Bladderwort (Lentibulariaceae)
Flowering: April-May
Field Marks: Butterworts are distinguished by their basal rosettes of rather fleshy leaves and their 5-parted, 2-lipped, solitary flowers with 2 stamens.
Northeastern Bladderwort [English]: Utricularia resupinata
Northeastern Bulrush [English]: Scirpus ancistrochaetus
Northeastern Dewberry [English]: Rubus fraternalis
Northeastern Saltbush [English]: Atriplex glabriuscula ...
Utricularia macrorhiza. Synonym: Utricularia vulgaris. (Bladderwort)
Lentibulariaceae (Bladderwort Family)
Flowers are about a third of an inch in diameter.
Hemp-nettle, Large-flowered Water-thyme, Large-leaved Lime, Late Spider Orchid, Lawn Chamomile, Lax-flowered Sea-lavender, Leafy Spurge, Leafy Toad Rush, Least Bur-reed, Least Lettuce, Least Water-lily, Leopard's-bane, Lesser Bladderwort, ...
The other common ones are: Sticky-Flypaper traps that adhere to and suffocate insects (sundew), Bear traps that quickly twist or wrap around prey (venus fly trap), Bladder traps that use an underwater vacuum to suck prey into a bladder (bladderwort), ...
BLADDER
A bladder is a small, air filled sac. Some plants, like bladderwort (a seaweed), have air bladders.
BLADE
A blade is a narrow, flat leaf.
Suction Trap - The trap looks like a bulb or egg, called a bladder. The bladder has a hole with a trap door. Inside the bladder is a vacuum. The insect is sucked into the bladder. These plants are commonly called bladderworts.
The aquatic bladderworts (Utricularia) have tiny rounded capsules with flaplike "trap doors." When stimulated by a nearby crustacean or insect, the door springs open, sucking water, along with the hapless prey, into the capsule.
Developmental genetics and morphological evolution of flowering plants, especially bladderworts (Utricularia): Fuzzy Arberian Morphology complements Classical Morphology. Annals of Botany Vol. 88, p. 1184
^ Vergara-Silva, F. 2003.
 See also: Green, May, Carnivorous Plant, Pine, Butterwort
  
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