Galapagos Species Database

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

Mentzelia aspera L.

pega ropa, stickleaf, tropical blazingstar

Adhesive, annual herb, 40 cm tall, with simple, alternate leaves and the stem is covered in barbed hairs. The blade is ovate to 3-lobed and the corolla is yellow. The seeds are 1 to numerous (McMullen, 1996)

Found in the arid lowlands, in soil and rock crevices, in the open or among trees and shrubs. The barbed hairs on the leaves and fruits of this plant make them tremendously successful at attaching to any animals that pass by, including humans.

Taxonomy

Domain
Eukaryota

Kingdom
Plantae

Phylum
Magnoliophyta

Class
Magnoliopsida (= Dicotyledoneae)

Order
Violales

Family
Loasaceae

Genus
Mentzelia

Species
aspera

Taxon category: Accepted

Syn.: Acrolasia squalida Hook. f., Mentzelia aspera var. canescens Andersson, M. aspera var. lobata Andersson, M. aspera var. virescens Andersson fide Royal Botanic Gardens, Kew & Missouri Botanical Garden (2010)

Origin: Native

Distribution

Map of specimen collection localities or observation records for this species in our collections database.

Distribution: The native range of this species is Tropical & Subtropical America (POWO, 2023).

References

  • Abbott, I. Abbott, L.K. (1973) New distribution records of 65 plant species within the Galapagos Archipelago. Charles Darwin Research Station (CDRS), unpublished.
  • Andersson, N.J. (1858) Flora of the Galápagos Islands (translated from Swedish). Kongliga Svenska Vetenskaps-Academien Botanik 1: 3-34
  • Andersson, N.J. (1855) Om Galápagos Öarnes Vegetation. Kongliga Svenska Vetenskaps Akademien Handl., Stockholm: 61-256.
  • Andersson, N.J. (1857) Om Galapagos-Oarnes Vegetation. Virgin, Kongliga Svenska Fregatten Eugenies Resa, Pt 1:1-34
  • Andersson, N.J. (1861-1862) Ueber Die Vegetation der Galapagos-Inseln Linnaea 31: 571-631
  • Cayot, L. J. (1987) Ecology of Giant Tortoise (Geochelone elephantopus)in the Galápagos Islands. Submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy in Biology in the Graduate School of Syracuse University.
  • CONABIO (2009) Catálogo taxonómico de especies de México. Cap. nat. México 1.
  • D'Arcy, W.G. (1987) Flora of Panama. Checklist and Index. Monogr. Syst. Bot. Missouri Bot. Gard. 17(1): i–xxx, 1–328; 18(2): i–ix, 1–672.
  • Hooker, J.D. (1847) An Enumeration of the Plants of the Galapagos Archipelago; with descriptions of those which are new. Transactions of the Linnean Society of London 20: 163-233.
  • 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.
  • Jaramillo, P. (1998) Distribución Espacial de la Vegetación Vascular y Dispersión de Especies Introducidas dentro del Parque Nacional Galápagos. Tesis de Doctorado en Biología, Universidad Central del Ecuador. Especialización ECOLOGIA DE POBLACIONES.
  • McMullen, C.K. (1999) Flowering plants of the Galapagos. Cornell University Press, Ithaca and London, 370 pp.
  • Nowak, J.B. (1987) Final report on studies in burnt area, Sierra Negra, Isabela Island, Galapagos Islands Ecuador. Charles Darwin Research Station, unpublished.
  • 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.
  • Royal Botanic Gardens, Kew Missouri Botanical Garden (eds.) (2013) The Plant List, Version 1.1. Published on the Internet; http://www.theplantlist.org/ (accessed 1st January).
  • Royal Botanic Gardens, Kew (2022) Plants of the world online POWO (2022): Plants of the world online. Published on the Internet; Https://powo.science.kew.org/
  • Schofield, E.K. (1984) Plants of the Galapagos Islands. Field Guide and Travel Journal. Universe Books, New York, 159 pp.
  • Stewart, A. (1911) A botanical survey of the Galápagos Islands. Proc. Calif. Acad. Sci. 4th Series, 1: 7-288.
  • Svenson, H.K. (1935) Plants of the Astor Expedition, 1930 (Galapagos and Cocos Islands). Am. J. Bot. 22: 208-277.
  • Tropicos.org. (2017) Database of Missouri Botanical Garden. Tropicos.org. Missouri Botanical Garden. 06 Oct 2017 <http://www.tropicos.org
  • Weigend, M. (2000) Loasaceae. Flora del Ecuador 64: 1-90.
  • Wiggins, I.L. Porter, D.M. (1971) Flora of the Galapagos Islands Standford University Press, Stanford.

You are welcome to download and use the information found in this page, acknowledging its source.

This page should be cited as follows:

"Galapagos Species Database, Mentzelia aspera", dataZone. Charles Darwin Foundation, https://datazone.darwinfoundation.org/en/checklist/?species=564. Accessed 31 October 2026.