Carpesium Genus

Carpesium rosulatum
Carpesium rosulatum, by Keisotyo, CC BY-SA 4.0, via Wikimedia Commons

Carpesium is a genus of flowering plants in the aster family, Asteraceae, placed in the order Asterales. It was described by Carl Linnaeus and comprises roughly 20–37 species, distributed across Europe and Asia, with the greatest diversity in China where several species are endemic.

Most members of the genus are perennial herbs, though a handful of species are annuals. The leaves are arranged alternately along the stem, with smooth or toothed margins; some species bear their leaves on winged petioles. Flower heads arise at the tips of branches or in the leaf axils, either singly or clustered. Each head carries numerous small, yellowish disc florets at its centre, surrounded by tubular or ray-like florets around the periphery. The fruit is a slender, ribbed, beaked achene that lacks the pappus of hairs found in many related genera.

Several species have a documented history in traditional medicine in China and Korea, including Carpesium abrotanoides, Carpesium divaricatum, and Carpesium rosulatum.

Distribution

Carpesium species are found across Europe and Asia. The genus reaches its highest diversity in China, where many species occur and several are found nowhere else. A smaller number of species extend into other parts of temperate Asia and into Europe.

Taxonomy Notes

Carpesium was described by Carl Linnaeus and is placed in the family Asteraceae (tribe Inuleae or closely allied tribes, depending on classification). GBIF's backbone recognizes approximately 37 species in the genus under the authorship L. The genus is distinguished from many Asteraceae relatives by its achenes, which are beaked and hairless, lacking a pappus.

Cultural Uses

Several species of Carpesium have traditional medicinal applications in East Asia. C. abrotanoides, C. divaricatum, and C. rosulatum are among those recorded as used in traditional medicine in China and Korea.