Tetraena is a genus of flowering plants in the family Zygophyllaceae.[1]
Species of Tetraena are shrubby or herbaceous, the tallest being around 1.5 m (4.9 ft). The leaves are opposite, or sometimes borne on short shoots and then appearing to be alternate. They may or may not have stalks (petioles). The flower usually has five petals and five sepals, rarely four, and ten stamens. The flower is usually tube-like in appearance with white to pale orange petals. The ovary has three to five chambers (locules). The ripe fruit is variable in shape, splitting into parts before releasing the seeds.[2]
The genus Tetraena was erected by Karl Maximovich in 1889 for the species Tetraena mongolica. Until 2003, this was the only species recognized in the genus. Molecular phylogenetic studies suggested that the genus Zygophyllum was not monophyletic, since Tetraena and some other genera were nested within it. To create monophyletic genera, Björn-Axel Beier and Mats Thulin transferred about 40 species of Zygophyllum to Tetraena, creating a much expanded genus,[2] though IPNI still treats it as a synonym of Zygophyllum.[1]
As of January 2018, Plants of the World Online accepted the following species:[1]
Tetraena is native from the Canary Islands in the west and South Africa in the south to China in the east.[2]
Tetraena is a genus of flowering plants in the family Zygophyllaceae.
Tetraena es un género de plantas fanerógamas de la familia Zygophyllaceae. Comprende 67 especies descritas y de estas, solo 11 aceptadas.[1]
El género fue descrito por Carl Johann Maximowicz y publicado en Enumeratio Plantarum hucusque in Mongolia 1: 129. 1889.[2] La especie tipo es: Tetraena mongolica Maxim.
A continuación se brinda un listado de las especies del género Tetraena aceptadas hasta mayo de 2015, ordenadas alfabéticamente. Para cada una se indica el nombre binomial seguido del autor, abreviado según las convenciones y usos.
Tetraena es un género de plantas fanerógamas de la familia Zygophyllaceae. Comprende 67 especies descritas y de estas, solo 11 aceptadas.
Tetraena est un genre de plantes de la famille des Zygophyllaceae.
Certaines espèces étaient anciennement rattachées au genre Zygophyllum.
Tetraena est un genre de plantes de la famille des Zygophyllaceae.
Tetraena é um género botânico pertencente à família Zygophyllaceae[1].
Tetraena é um género botânico pertencente à família Zygophyllaceae.
Tetraena là một chi thực vật có hoa trong họ Zygophyllaceae.[1]
Chi này gồm các loài:
Bài viết chủ đề bộ Bá vương này vẫn còn sơ khai. Bạn có thể giúp Wikipedia bằng cách mở rộng nội dung để bài được hoàn chỉnh hơn. Tetraena là một chi thực vật có hoa trong họ Zygophyllaceae.
四合木属（学名：Tetraena）是蒺藜科下的一个属。该属仅有四合木（Tetraena mongolica）一种，分布于中国内蒙古。[1]
这是一篇與植物相關的小作品。你可以通过编辑或修订扩充其内容。 
