Description
Large, bushy, upright, frost tender (min. +15 °C) perennial (H 0,4-0,6 m, W 0,4-0,6 m). Leaves in a broad, flat-open rosette atop of the upright, green, triangular stebel; narrow-lanceolate (10-15 cm), green. Flowers not remarkable. Grows well in wet, marshy soils or in water to 20 cm deep, in sunny and half-shady sites.