Iostephane
Iostephane is a genus of Mexican flowering plants in the family Asteraceae. They were first published in G.Bentham & J.D.Hooker, Genera Plantarum Vol.2 on page 368 in 1873.
The species are rosette-forming herbaceous perennials that produce relatively large heads with yellow or purple rays. They have large, somewhat quadrate cypselae, that may either have or lack a pappus.
Molecular phylogenetic studies by Schilling in 1991, suggested that there is an unexpectedly close relationship between Iostephane and Dendroviguiera, a genus of shrubs and trees that is also endemic to Mexico.
Species
As accepted by Plants of [the World Online], and Global Compositae Checklist;- Iostephane heterophylla Benth. – widespread from Chihuahua to Oaxaca
- Iostephane madrensis Strother – Chihuahua
- Iostephane papposa J. J. Fay – Oaxaca
- Iostephane trilobata Hemsl. – Chiapas, Oaxaca, Puebla, México State