Hesperantha coccinea

Hesperantha coccinea, the river lily, or crimson flag lily, synonym Schizostylis coccinea, is a species of flowering plant in the iris family Iridaceae, native to Southern Africa and Zimbabwe. It is a semievergreen perennial growing to 60 cm (24 in) tall, with slender lanceolate leaves up to 40 cm (16 in) long and 1 cm (0.4 in) broad. The flowers are red, occasionally pink or white, 30–35 mm long, with six petals; they are produced four to ten alternately on a spike in late summer to autumn.

The Latin specific epithet coccinea means “bright red”.