tropical blazingstar
Mentzelia aspera
Spanish: Pega pega

Mentzelia aspera, the tropical blazingstar, is a species of flowering plant in the family Loasaceae. It is native to the subtropical and tropical New World, from Arizona to northwestern Argentina, and it has been introduced to Cape Verde. An annual reaching 75 cm (30 in), it is found in a variety of habitats, including desert scrublands and grasslands, and in riverine situations, such as arroyos and canyon bottoms, often in association with cottonwoods and willows.
- 2025-11-23 — observation by roberto_sanchez_rodriguez
- 2025-01-04 — observation by zihuadean
- 2024-02-14 — observation by daniel_brito
- 2024-01-16 — observation by winterwren22
- 2024-01-07 — observation by zihuadean
- 2023-02-02 — observation by zihuadean
Interactive card with more photos, sounds and similar species Plants guide iNaturalist Wikipedia
Cite as: “tropical blazingstar (Mentzelia aspera) at La Saladita”, La Saladita Field Guide, lasaladita.com/species/mentzelia-aspera/, updated 2026-09-26. Observation counts and months come from iNaturalist research-grade records within about 50 km of 17.8375°N, 101.7606°W (the survey box also takes in Zihuatanejo, Ixtapa and Troncones); summary text from Wikipedia where present.