Family: Asteraceae |
Plants annual or perennial herbs. Leaves simple, alternate, usually clasping the stems, pinnately veined. Inflorescences solitary, axillary or leaf-opposed, pedunculate capitula. Capitula radiate; phyllaries imbricate, in several series. Achenes subterete; pappuses on unequal bristles. Vicoa includes about 11-14 species. They are native in Africa and from Ukraine to Turkey thorugh southern Asia to China (POWO 2022). One species, Vicoa lignea, grows in both Somaliland and Somalia. It was treated as Pentanema as Pentanema ligneum in the Flora of Somalia. Recognition of Vicoa is based on the paper by Englund et al. (2009). There has not, as yet, been a revision of the genus as now interpreted. Englund M., P. Pornpongrungrueng, M.H.G. Gustafsson, & A.A. Anderberg (2009) Phylogenetic relationships and generic delimitation in Inuleae subtribe Inulinae (Asteraceae) based on ITS and cpDNA sequence data. Cladistics 19: 315-352. DOI: 10.1111/j.1096-0031.2009.00256.x Gutiérrez-Larruscain D., M. Santos-Vicente, A.A. Anderberg, E. Rico1 & M.M. Martínez-Ortega (2018) Phylogeny of the Inula group (Asteraceae: Inuleae): Evidence from nuclear and plastid genomes and a recircumscription of Pentanema. Taxon 67: 149-164. https://onlinelibrary.wiley.com/doi/epdf/10.12705/671.9. Nylinder S., A.A. Anderberg. (2015) Phylogeny of the Inuleae (Asteraceae) with special emphasis on the Inuleae-Plucheinae. Taxon 64: 110-130. POWO (2022) Plants of the World Online. Facilitated by the Royal Botanic Gardens, Kew. Published on the Internet; http://www.plantsoftheworldonline.org/ Retrieved 5 September 2022.
Global distribution of Vicoa. Note: GBIF records include introduced and cultivated plants. Consequently, the distribution shown often differs from statements about a taxon's native distribution. |