Iostephane

Iostephane is a genus of Mexican flowering plants in the sunflower family.[2][3][4]

Iostephane
Iostephane heterophylla
Scientific classification
Kingdom:
Plantae
(unranked):
Angiosperms
(unranked):
Eudicots
(unranked):
Asterids
Order:
Asterales
Family:
Asteraceae
Tribe:
Heliantheae[1]
Genus:
Iostephane

Type species
Iostephane heterophylla
Synonyms[1]
  • Pionocarpus S.F.Blake

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 [5] suggested that there is an unexpectedly close relationship between Iostephane and Dendroviguiera [6] (Viguiera sect. Maculatae), a genus of shrubs and trees that is also endemic to Mexico.

Species[1]

References
  1. Flann, C (ed) 2009+ Global Compositae Checklist
  2. Bentham, George. 1873. Genera Plantarum 2: 368 in Latin
  3. Strother, J. L. 1983. Pionocarpus becomes Iostephane (Compositae: Heliantheae): a synopsis. Madroño 30: 34-48.
  4. Tropicos, Iostephane Benth.
  5. Schilling, E. E. and J. L. Panero. 1991. Evidence for a close relationship between Iostephane and Viguiera sect. Maculatae (Asteraceae: Heliantheae). American Journal of Botany 78: 1054-1062.
  6. Schilling, E, E. and J. L. Panero 2011. A revised classification of subtribe Helianthinae (Asteraceae: Heliantheae). II. Derived lineages. Botanical Journal of the Linnean Society 167: 311-331.


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