Polaskia
Encyclopedia
Polaskia is a genus
of tree-like cacti
reaching 4–5 m high, comprising 2 species
. Both present primitive characteristics, but Polaskia chichipe is nearer to Myrtillocactus
while Polaskia chende is nearer to Stenocereus
. The genus is found in the Mexican
states of Puebla
and Oaxaca
.
with Polaskia:
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...
of tree-like cacti
Cactus
A cactus is a member of the plant family Cactaceae. Their distinctive appearance is a result of adaptations to conserve water in dry and/or hot environments. In most species, the stem has evolved to become photosynthetic and succulent, while the leaves have evolved into spines...
reaching 4–5 m high, comprising 2 species
Species
In biology, a species is one of the basic units of biological classification and a taxonomic rank. A species is often defined as a group of organisms capable of interbreeding and producing fertile offspring. While in many cases this definition is adequate, more precise or differing measures are...
. Both present primitive characteristics, but Polaskia chichipe is nearer to Myrtillocactus
Myrtillocactus
Myrtillocactus is a genus of cacti. The genus is found from Mexico to Guatemala. The genus is best known with Myrtillocactus geometrizans.The genus Myrtillocereus Fric & Kreuz. Myrtillocactus (from Latin, "blueberry cactus") is a genus of cacti. The genus is found from Mexico to Guatemala. The...
while Polaskia chende is nearer to Stenocereus
Stenocereus
Stenocereus is a genus of columnar or tree-like cacti from the Baja California Peninsula and other parts of Mexico, Arizona in the United States, Costa Rica, Guatemala, Venezuela and the ABC islands of the Dutch Caribbean. The genus has been enlarged by the addition of species from several other...
. The genus is found in the Mexican
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...
states of Puebla
Puebla
Puebla officially Estado Libre y Soberano de Puebla is one of the 31 states which, with the Federal District, comprise the 32 Federal Entities of Mexico. It is divided in 217 municipalities and its capital city is Puebla....
and Oaxaca
Oaxaca
Oaxaca , , officially Estado Libre y Soberano de Oaxaca is one of the 31 states which, along with the Federal District, comprise the 32 federative entities of Mexico. It is divided into 571 municipalities; of which 418 are governed by the system of customs and traditions...
.
Synonymy
The following genera have been brought into synonymySynonym (taxonomy)
In scientific nomenclature, a synonym is a scientific name that is or was used for a taxon of organisms that also goes by a different scientific name. For example, Linnaeus was the first to give a scientific name to the Norway spruce, which he called Pinus abies...
with Polaskia:
- Chichipia Backeb. (nom. inval.)
- Heliabravoa Backeb.