Definition of mask flower in English:

mask flower

noun

  • Any of several Peruvian plants of the genus Alonsoa (family Scrophulariaceae), grown as ornamentals, originally A. linearis, having scarlet flowers with a black spot at the base, now chiefly A. warscewiczii, whose flowers lack such a spot.

Origin

Mid 19th century; earliest use found in Floricultural Cabinet. Apparently after the name in Quechua: N.E.D says ‘after the Peruvian name ricaco or ricarco’; in Quechua likaku or rikarku would mean ‘one which sees itself’.