Iostephane
Encyclopedia
Iostephane is a genus
of flowering plants in the family Asteraceae
. It includes 4 species that are endemic to Mexico. The species are rosette-forming herbaceous perennials that produce relatively large heads with yellow or purple (I. heterophylla) rays. They have large, somewhat quadrate cypselae (achenes), that may either have or lack a pappus. Molecular phylogenetic studies suggested that there is an unexpectedly close relationship between Iostephane and Viguiera sect. Maculatae, a group of shrubs and trees that is also endemic to Mexico.
Species include:
Genus
In biology, a genus is a low-level taxonomic rank used in the biological classification of living and fossil organisms, which is an example of definition by genus and differentia...
of flowering plants in the family Asteraceae
Asteraceae
The Asteraceae or Compositae , is an exceedingly large and widespread family of vascular plants. The group has more than 22,750 currently accepted species, spread across 1620 genera and 12 subfamilies...
. It includes 4 species that are endemic to Mexico. The species are rosette-forming herbaceous perennials that produce relatively large heads with yellow or purple (I. heterophylla) rays. They have large, somewhat quadrate cypselae (achenes), that may either have or lack a pappus. Molecular phylogenetic studies suggested that there is an unexpectedly close relationship between Iostephane and Viguiera sect. Maculatae, a group of shrubs and trees that is also endemic to Mexico.
Species include:
- Iostephane heterophylla (Cav.) Benth.
- Iostephane madrensis (S. Watson) Strother
- Iostephane papposa J. J. Fay
- Iostephane trilobata Hemsl.