Heliamphora uncinata is a species of Marsh Pitcher Plant

Heliamphora

The genus Heliamphora contains 23 species of pitcher plants endemic to South America. The species are collectively known as sun pitchers, based on the mistaken notion that the heli of Heliamphora is from the Greek helios, meaning "sun"...

 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...

. It is known only from the type collection, which was made in a narrow canyon on Amurí-tepui. There it grows at an elevation of approximately 1850 m on sandstone

Sandstone

Sandstone is a sedimentary rock composed mainly of sand-sized minerals or rock grains.Most sandstone is composed of quartz and/or feldspar because these are the most common minerals in the Earth's crust. Like sand, sandstone may be any colour, but the most common colours are tan, brown, yellow,...

 cliff faces in shady conditions. The only other species in the genus known to have a similar growth habit is H. exappendiculata

Heliamphora exappendiculata

Heliamphora exappendiculata is a species of Marsh Pitcher Plant endemic to the Chimanta massif and Aprada Tepui in Venezuela. It was for a long time considered a variety of H. heterodoxa, but has recently been raised to species rank.-References:* McPherson, S. 2007. Pitcher Plants of the Americas...

. These two taxa

Taxon

|thumb|270px|[[African elephants]] form a widely-accepted taxon, the [[genus]] LoxodontaA taxon is a group of organisms, which a taxonomist adjudges to be a unit. Usually a taxon is given a name and a rank, although neither is a requirement...

also share a number of morphological features and appear to be closely related.