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Hibernaculum (plural ''hibernacula'') is the term often applied to a winter bud of certain aquatic plants, such as the
Hibernaculum (plural ''hibernacula'') is the term often applied to a winter bud of certain aquatic plants, such as the bladderwort
''Utricularia'', commonly and collectively called the bladderworts, is a genus of carnivorous plants consisting of approximately 233 species (precise counts differ based on classification opinions; a 2001 publication lists 215 species).Salmon, Br ...
s (''Utricularia
''Utricularia'', commonly and collectively called the bladderworts, is a genus of carnivorous plants consisting of approximately 233 species (precise counts differ based on classification opinions; a 2001 publication lists 215 species).Salmon, Br ...
''). The buds are heavier than water, and, being developed at the approach of cold weather, they become detached, sink to the bottom of the pond, and thus survive the winter. In the spring, they enlarge, developing air space
The atmosphere of Earth is the layer of gases, known collectively as air, retained by Earth's gravity that surrounds the planet and forms its planetary atmosphere. The atmosphere of Earth protects life on Earth by creating pressure allowing for ...
s, rise to the surface, and reproduce their species. New International Encyclopedia
Certain terrestrial plants also form hibernacula. These include some temperate sundews (''Drosera
''Drosera'', which is commonly known as the sundews, is one of the largest genera of carnivorous plants, with at least 194 species. 2 volumes. These members of the family Droseraceae lure, capture, and digest insects using stalked mucilaginou ...
'') such as '' D. anglica'', '' D. filiformis'', '' D. intermedia'', '' D. rotundifolia''; and some temperate butterworts (''Pinguicula
''Pinguicula'', commonly known as the butterworts, is a genus of carnivorous flowering plants in the family Lentibulariaceae. They use sticky, glandular leaves to lure, trap, and digest insects in order to supplement the poor mineral nutrition ...
'') such as '' P. balcanica'', '' P. grandiflora'', '' P. longifolia'', and '' P. vulgaris''.
See also
* Hibernaculum *Turion (botany)
A turion (from Latin turio meaning "shoot") is a type of bud that is capable of growing into a complete plant. A turion may be an underground bud. Many members of the genus ''Epilobium'' are known to produce turions at or below ground level.
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References
Plant morphology {{botany-stub