Hainanecio

Hainanecio (Chinese: 海南菊属) is a genus of flowering perennial herb endemic to Hainan Island, China. A single species, Hainanecio hainanensis, has been described from three populations on Hainan Island. It grows in shade in dense, broadleaved evergreen forests at 900–1200 m above sea level. It flowers from July to August and fruits in September to November. The sole species was first described as Senecio hainanensis by C. C. Chang & Y. C. Tseng (1974) before being transferred to Sinosenecio by C. Jeffrey & Y. L. Chen (1984). It was believed to be the southernmost-occurring species of Sinosenecio before being reclassified in 2011 by Y. Liu & Q. E. Yang as its own genus and species. Molecular phylogenetic analysis places H. hainanensis as an isolated member of the subtribe Senecioninae, being only distantly related to Sinosenecio species with basic chromosome number 30 or Tephroseris species with basic chromosome number 24. Hainanecio chromosomes are significantly smaller (0.8–1.8 μm) than......read more on Wikipedia.