Oxytheca
Encyclopedia
Oxytheca is a 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...

 of plant
Plant
Plants are living organisms belonging to the kingdom Plantae. Precise definitions of the kingdom vary, but as the term is used here, plants include familiar organisms such as trees, flowers, herbs, bushes, grasses, vines, ferns, mosses, and green algae. The group is also called green plants or...

s in the family Polygonaceae
Polygonaceae
Polygonaceae is a family of flowering plants known informally as the "knotweed family" or "smartweed family"— "buckwheat family" in the United States. The name is based on the genus Polygonum and was first used by Antoine Laurent de Jussieu in 1789 in his book, Genera Plantarum. The name refers...

 with seven 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...

 found in dry and temperate parts of the Americas
Americas
The Americas, or America , are lands in the Western hemisphere, also known as the New World. In English, the plural form the Americas is often used to refer to the landmasses of North America and South America with their associated islands and regions, while the singular form America is primarily...

. The taxonomy of this genus is in flux, with some species often listed under tentative new names.

Species include:
  • Oxytheca dendroidea
  • Oxytheca parishii
    Oxytheca parishii
    Oxytheca parishii is a species of flowering plant in the buckwheat family known by the common name Parish's oxytheca. It is endemic to California, where it is known only from the Transverse Ranges and nearby slopes of the southernmost Central Coast Ranges. It grows in dry and rocky mountain soils...

    = Acanthoscyphus parishii
  • Oxytheca perfoliata
    Oxytheca perfoliata
    Oxytheca perfoliata is a species of flowering plant in the buckwheat family known by the common names roundleaf puncturebract and roundleaf oxytheca. It is native to the southwestern United States, where it is a common plant of the deserts and some woodland and valley areas...

  • Oxytheca watsonii

External links

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