Galapagos Species Database

The Galapagos Species Database shares the information about the species from our Natural History Collections.

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Scalesia retroflexa Hemsl.

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Pollen grain of Scalesia retroflexa Hemsl. (scanning electron micrograph). Photo: Patricia Jaramillo Díaz & M. Mar Trigo, CDF, 2011.
Pollen grain of Scalesia retroflexa Hemsl. (scanning electron micrograph). Photo: Patricia Jaramillo Díaz & M. Mar Trigo, CDF, 2011.

Leaves with unwinged petiole, contain 6 rays-flowers with a ligulate corolla and empty achenes triangular section.

Taxonomy

Domain
Eukaryota

Kingdom
Plantae

Phylum
Magnoliophyta

Class
Magnoliopsida (= Dicotyledoneae)

Order
Asterales

Family
Asteraceae

Genus
Scalesia

Species
retroflexa

Taxon category: Accepted

Taxon origin: Endemic

Status

Critically endangered

Distribution

Distribution: Species restricted to the southeast coast of Santa Cruz Island. It has declined due to pressure from feral animals.

References

  • Wiggins, I.L. Porter, D.M. (1971) Flora of the Galapagos Islands Standford University Press, Stanford.
  • Eliasson, U. (1974) Studies in Galapagos Plants. XIV. The Genus Scalesia Arn. Opera Botanica 36: 1-117.
  • Adsersen, H. (1989) The Rare Plants of the Galapagos Islands, Ecuador and their Conservation. Biol. Conservation 47(1): 49-77.
  • Arsiniegas, M. (1996) Caracterización, evaluación y conservación de cuatro especies de plantas endémicas que se hallan en peligro de extinción en las islas Galápagos: Calandrinia galapagosa, Lecocarpus darwinii, Scalesia helleri, Scalesia retroflexa. Tesis de Ing. Forestal, Univ. Téc. "Luis Torres", Esmeraldas.
  • Harling, G. (1962) On Some Compositae Endemic to the Galápagos Islands. Acta Horti Bergiani. 20(3): 63-119.
  • Tropicos.org. (2017) Database of Missouri Botanical Garden. Tropicos.org. Missouri Botanical Garden. 06 Oct 2017 <http://www.tropicos.org
  • Howell, J.T. (1941) The genus Scalesia. Proc. Calif. Acad. Sci. Series 4, 22: 221-271.
  • Robinson, B.L. (1902) Flora of the Galapagos Islands. Papers from the Hopkins-Stanford Expedition to the Galapgaos Islands. Proc. Amer. Acad. 38(4): 78-270.
  • Stewart, A. (1911) A botanical survey of the Galápagos Islands. Proc. Calif. Acad. Sci. 4th Series, 1: 7-288.
  • Itow, S. (1997) List of Plant Specimens collected in the Galápagos Islands, Ecuador. Bulletin of the Faculty of Liberal Arts, Nagasaki University, Natural Science, 38 (1): 53-144.
  • Bisconti, M. Landini, W., Bianucci, G., Cantalamessa, G., Carnevale, G. Ragaini, L. & Valleri, G. (2001) Biogeographic relationships of the Galapagos terrestrial biota: parsimony analyses of endemicity based on reptiles, land birds and Scalesia land plants. J. Biogeogr. 28: 495-510.
  • Jaramillo, P. (2000) Plantas amenazadas y medidas de conservación en varias islas del archipiélago. Informe Galápagos, 70-76 (Eds P. Ospina and E. Muñoz.). Quito-Ecuador: Fundación Natura y el Fondo Mundial para la Naturaleza (WWF).
  • Lawesson, J.E. (1987) Especies de plantas amenazadas y lugares prioritarios para la conservación de las plantas en las Islas Galápagos. Memorias. Taller de Investigación Botánica y Manejo en Galápagos
  • León-Yánez, S. Valencia, R., N. Pitman, L. Endara, C. Ulloa Ulloa & H. Navarrete (2011) Libro rojo de las plantas endémicas del Ecuador. 2 da. Edición. Publicaciones del Herbario QCA, Pontificia Universidad Católica del Ecuador, Quito. Pp. 957.
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This page should be cited as follows:
"Galapagos Species Database, Scalesia retroflexa", dataZone. Charles Darwin Foundation, https://datazone.darwinfoundation.org/en/checklist/?species=354. Accessed 2 May 2024.