Mimulus cardinalis Douglas ex Benth.
Diplacus cardinalis (Douglas ex Benth.) Groenl.
Erythranthe cardinalis (Douglas ex Benth.) Spach
Mimulus cardinalis Douglas ex Benth. var. exsul Greene
Mimulus cardinalis Douglas ex Benth. var. griseus Greene
Mimulus cardinalis Douglas ex Benth. var. rigens Greene
Mimulus cardinalis Douglas ex Benth. var. verbenaceus (Greene) Kearney & Peebles
Mimulus verbenaceus Greene
Cardinal monkeyflower, scarlet monkeyflower
Occurs almost always under natural conditions in wetlands. It is a favorite of hummingbirds.
Plants: Up to 3' (91 cm) around, with erect, loosely branched stems covered with long delicate hairs.
Flowers: Single red- to red-orange flowers grow from leaf axils, appearing from Jul-Sep. (Rarely, flowers are yellow.) Flowers are tubular, about 1" (2.5 cm) long, with a yellow, projecting stamen. They have a narrow upper lip and wider, 3-lobed lower lip that bends back underneath the flower.
Mimulus cardinalis on www.ventanawild.org
Mimulus cardinalis at Southeastern Arizona Wildflowers and the Plants of the Sonoran Desert
Mimulus cardinalis at the Lady Bird Johnson Wildflower Center
Mimulus cardinalis on DesertUSA: Exploring the Southwest
Mimulus cardinalis description by Thomas H. Kent, last updated 25 May 2020.