Utricularia heterochroma
Encyclopedia
Utricularia heterochroma is a very small, possibly perennial
Perennial plant
A perennial plant or simply perennial is a plant that lives for more than two years. The term is often used to differentiate a plant from shorter lived annuals and biennials. The term is sometimes misused by commercial gardeners or horticulturalists to describe only herbaceous perennials...

, rheophytic
Rheophyte
A rheophyte is an aquatic plant that lives in fast moving water currents in an environment where few other organisms can survive. Rheophytes tend to be found in currents that move at rates of 1 to 2 meters per second and that are up to 3 to 6 feet deep. The amount of force such fast moving currents...

 carnivorous plant
Carnivorous plant
Carnivorous plants are plants that derive some or most of their nutrients from trapping and consuming animals or protozoans, typically insects and other arthropods. Carnivorous plants appear adapted to grow in places where the soil is thin or poor in nutrients, especially nitrogen, such as acidic...

 that belongs to the genus
Genus
In biology, a genus is a low-level taxonomic rank used in the biological classification of living and fossil organisms, which is an example of definition by genus and differentia...

 Utricularia. U. heterochroma is endemic to Venezuela
Venezuela
Venezuela , officially called the Bolivarian Republic of Venezuela , is a tropical country on the northern coast of South America. It borders Colombia to the west, Guyana to the east, and Brazil to the south...

, where it is known from the type location
Biological type
In biology, a type is one particular specimen of an organism to which the scientific name of that organism is formally attached...

 at Ptari-tepuí, two collections from Toronó-tepuí, one collection from Apacara-tepuí, one collection from Serrania Guanay, and several collections from the Chimantá massif. It grows as a rheophyte
Rheophyte
A rheophyte is an aquatic plant that lives in fast moving water currents in an environment where few other organisms can survive. Rheophytes tend to be found in currents that move at rates of 1 to 2 meters per second and that are up to 3 to 6 feet deep. The amount of force such fast moving currents...

 on wet sandstone cliffs near waterfalls among mosses at altitudes from 1760 m (5,774 ft) to 2450 m (8,038 ft). It was originally described and published by Julian Alfred Steyermark
Julian Alfred Steyermark
Julian Alfred Steyermark was an American botanist. His focus was on New World vegetation, and he specialized in the family Rubiaceae.- Life and work :...

in 1953.
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