Ephedra torreyana
Encyclopedia
Ephedra torreyana is a species of Ephedra
that is native to the Southwestern United States
and northern Mexico
. It was originally described by Sereno Watson
in 1879 and placed in section
Alatae, "tribe" Habrolepides by Otto Stapf
in 1889. In 1996 Robert A. Price left E. torreyana in section Alatae without recognizing a tribe.
Ephedra (genus)
Ephedra is a genus of gymnosperm shrubs, the only genus in its family, Ephedraceae, and order, Ephedrales. Ephedra grows in dry climates over wide areas of the northern hemisphere, including southwestern North America, Europe, north Africa, and southwest and central Asia, and, in the southern...
that is native to the Southwestern United States
Southwestern United States
The Southwestern United States is a region defined in different ways by different sources. Broad definitions include nearly a quarter of the United States, including Arizona, California, Colorado, Nevada, New Mexico, Oklahoma, Texas and Utah...
and northern Mexico
Mexico
The United Mexican States , commonly known as Mexico , is a federal constitutional republic in North America. It is bordered on the north by the United States; on the south and west by the Pacific Ocean; on the southeast by Guatemala, Belize, and the Caribbean Sea; and on the east by the Gulf of...
. It was originally described by Sereno Watson
Sereno Watson
Sereno Watson was an American botanist.Graduating from Yale in 1847, he drifted through various occupations until, in California, he joined the Clarence King Expedition and eventually became its expedition botanist...
in 1879 and placed in section
Section (botany)
In botany, a section is a taxonomic rank below the genus, but above the species. The subgenus, if present, is higher than the section, and the rank of series, if present, is below the section. Sections are typically used to help organise very large genera, which may have hundreds of species...
Alatae, "tribe" Habrolepides by Otto Stapf
Otto Stapf
Otto Stapf FRS was an Austrian born botanist and taxonomist.Stapf trained in Vienna, moving to Royal Botanic Gardens, Kew in 1890. He was keeper of the Herbarium from 1909 to 1920...
in 1889. In 1996 Robert A. Price left E. torreyana in section Alatae without recognizing a tribe.