Monographs Details: Justicia guianensis (N.E.Br.) Wassh.
Authority: Wasshausen, Dieter C. 1990. Justicia maguirei, a new species of Acanthaceae from Guyana. Mem. New York Bot. Gard. 64: 235-238.
Family:Acanthaceae
Discussion:

Dianthera guianensis N. E. Brown, Trans. Linn. Soc. II, 6: 57. 1901. Type. Guyana. Kotinga Valley, McConnell & Quelch 188 (holotype K).

Jacobinia venezuelica Lindau, Notizbl. Bot. Gard. Berlin 6: 199. 1914. Type. Venezuela. Roraima, vie. Rio Cuquenan, E. Ule 8762 (holotype B, destroyed; isotype G).