| Rosularia | |
|---|---|
 | |
| Rosularia flowers | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Order: | Saxifragales |
| Family: | Crassulaceae |
| Subfamily: | Sempervivoideae |
| Tribe: | Sedeae |
| Genus: | Rosularia (DC) Stapf |
| Species | |
See text | |
| Synonyms | |
SempervivellaStapf [1] | |
Rosularia is a small genus of the family Crassulaceae. It includes about 28-35 species from Europe, the Himalayas, and northern Africa.
Rosularia was originally described by De Candolle (1828) as a section of the genus Umbilicus, [2] and raised to the level of genus by Stapf (1923) [3] Thus the genus bears the botanical authority (DC) Stapf of both authors. [1]
In 1930, Berger included it in family Crassulaceae subfamily Sedoideae, as one of 9 genera. [4] [5] He further divided it into two sections (Eu-Rosularia and Ornithogalopsis) and further series, [6] transferring some species of Sedum to it. Since then, a number of species have been transferred in and out of the genus, including S. sempervivoides , which at one stage was placed in Prometheum . [5] The genus Sempervivella was submerged in Rosularia. [6] The genus is now placed within the Leucosedum clade, tribe Sedeae, subfamily Sempervivoideae of the Crassulaceae, but is embedded within Sedum paraphyletically. [7] [1] [8]
Rosularia contains about 28 species. The following species and subspecies were accepted by The Plant List (2013): [9] [10]
Rosularia is found in arid and semi-arid regions from North Africa (Morocco, Ethiopia), through the eastern Mediterranean to Central Asia (north of Tien Shan and east of W Himalaya), including Pakistan. [6] [5]
Rosularia is an important larval host for the Central Asian butterfly Parnassius apollonius . [12]
A number of species are cultivated as ornamental garden plants, and have been used in traditional medicine. [5]
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