four-o'clock

a common garden plant, Mirabilis jalapa, of the four-o'clock family, having tubular red, white, yellow, or variegated flowers that open late in the afternoon.

any plant of the same genus.

Also called: marvel-of-Peru a tropical American nyctaginaceous plant, Mirabilis jalapa, cultivated for its tubular yellow, red, or white flowers that open in late afternoon

Australian another name for friarbird, esp the noisy friarbird (Philemon corniculatus): so called because of its cry