''Carya texana'', or black hickory, for its dark colored bark, is a North American tree in the
walnut family, Juglandaceae. It is
endemic
Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsew ...
to the
United States
The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territorie ...
, found primarily in the southern
Great Plains
The Great Plains (french: Grandes Plaines), sometimes simply "the Plains", is a broad expanse of flatland in North America. It is located west of the Mississippi River and east of the Rocky Mountains, much of it covered in prairie, steppe, an ...
and the
Lower Mississippi Valley
The Mississippi River Alluvial Plain is an alluvial plain created by the Mississippi River on which lie parts of seven U.S. states, from southern Louisiana to southern Illinois (Illinois, Missouri, Kentucky, Tennessee, Arkansas, Mississippi, Lo ...
.
[ It is an ]endangered species
An endangered species is a species that is very likely to become extinct in the near future, either worldwide or in a particular political jurisdiction. Endangered species may be at risk due to factors such as habitat loss, poaching and inv ...
in Indiana
Indiana () is a U.S. state in the Midwestern United States. It is the 38th-largest by area and the 17th-most populous of the 50 States. Its capital and largest city is Indianapolis. Indiana was admitted to the United States as the 19th s ...
, where it occurs in the southwest corner of the state.
Description
Black hickory grows up to tall. It has dark gray to black bark with a tight "diamond" patterning. The leaves usually have a dense coating of scales, imparting a rusty brown color. They are pinnately compound usually with seven leaflets, but sometimes five or nine. The fruits (nuts) are bronze to reddish brown and the seeds can be sweet and edible,[ but are sometimes bitter.]
Genetics
Black hickory is a 64-chromosome species that readily hybridizes with tetraploid '' C. tomentosa''. Hybrids with 32 chromosomes may also occur.
References
{{Taxonbar, from=Q5047670
texana
Edible nuts and seeds
Endemic flora of the United States
Plants described in 1861
Trees of the United States
Endangered flora of the United States
Flora without expected TNC conservation status