Annual, occasionally perennial herb, 0.3-1.0 m high. Leaves sessile; blade obovate, up to 100 x 16 mm, base truncate, apex acute. Flowers in helicoid cymes. Corolla bright blue to purple. Flowering time Dec.-Apr. Fruit of nutlets, covered by cylindrical, slender glochidia.
Annual, occasionally perennial herb, 0.3-1.0 m high. Leaves sessile; blade obovate, up to 100 x 16 mm, apex acute, base truncate. Flowers: in helicoid cymes; corolla bright blue to purple; Dec.-Apr. Fruit of nutlets, covered with cylindrical, slender glochidia.