Araceae.

[Derrick]

Anthurium obtusum (Engl.) Grayum, (Michael Howard Grayum,) in Phytologia 82(1): p35. (1997) (Phytologia). Basionym Anthurium trinerve var. obtusum Engl. (Heinrich Gustav Adolf Engler) Botanische Jahrbücher für Systematik, Pflanzengeschichte und Pflanzengeographie 25(3): pp357-358, (1898) (Bot. Jahrb. Syst.) https://www.biodiversitylibrary.org/page/209214#page/367/mode/1up

Synonym. Anthurium trinerve Miq. (Friedrich Anton Wilhelm Miquel) In Linnaea 17: pp66–67, (1843) (Linnaea). https://www.biodiversitylibrary.org/page/106859#page/72/mode/1up

Etymology. Obtusum. essentially means blunt.

Habit/Ecology. A confirmed ant garden resident using a synonym Anthurium trinerve Miq. In Aragua Cedeño, et al. Ant Gardens of Surumoni, Venezuela Selbyana Vol. 20, No. 1, pp125-132, (1999.) https://www.jstor.org/stable/41760015?seq=1

Photos.

http://www.aroidpictures.fr/GENERA/ANTHURIUMM-Z/anthobtusum.html

Range tropical Central and South America.

My E/book - data base 2020 will have more details of ant associated Araceae. Most will be very clearly illustrated.