The following species in the flowering plant genus Heliotropium , the heliotropes, are accepted by Plants of the World Online. [1] A number of species previously in Tournefortia were reassigned to Heliotropium in recent years as molecular methods became available. [2]
Cynoglossum is a genus of small-flowered plants in the family Boraginaceae.
Alkanna is a genus of herbaceous plants including about 60 species of the family Boraginaceae.
Zygophyllum is the type genus of the flowering plant family Zygophyllaceae. The generic name is derived from the Greek words ζυγόν (zygon), meaning "double", and φυλλον (phyllon), meaning "leaf". It refers to the leaves, each of which have two leaflets.
Boraginoideae is a subfamily of the plant family Boraginaceae s.s, with about 42 genera. That family is defined in a much broader sense in the Angiosperm Phylogeny Group (APG) system of classification for flowering plants. The APG has not specified any subfamilial structure within Boraginaceae s.l.
Jurinea is a genus of plants in the family Asteraceae.
Eritrichium is a genus of flowering plants in the family Boraginaceae. It contains 78 species. Notable members include Eritrichium howardii and Eritrichium nanum.
Euploca is an almost cosmopolitan genus of plants with around 100 species. It was first described by Thomas Nuttall in 1837. While part of the broadly defined Boraginaceae in the APG IV system from 2016, a revision of the order Boraginales from the same year includes Euploca in the separate family Heliotropiaceae. Its species used to be classified in the genera Hilgeria and Schleidenia and in Heliotropium sect. Orthostachys, but were found to form an independent lineage in a molecular phylogenetic analysis, more closely related to Myriopus than to Heliotropium. While many species use the C4 photosynthetic pathway, there are also C3–C4 intermediate species. Species have leaves with a C4-typical Kranz anatomy.
Prangos is a genus of flowering plants of the family Apiaceae, native from Europe to Mongolia and the western Himalayas.
Varronia is a genus of flowering plants in the family Boraginaceae, found throughout Latin America, the Caribbean, and in the US states of Texas and Florida. They were resurrected from Cordia in 2007.
Rindera is a genus of flowering plants belonging to the family Boraginaceae.
Rochelia is a genus of flowering plants belonging to the family Boraginaceae. It is also in subtribe Eritrichiinae.
Mattiastrum is a genus of flowering plants belonging to the family Boraginaceae.