Leaves ovate to narrowly ovate, up to 40 x 20 mm, apex obtuse to acute. Corolla ± 20 x 15 mm. Flowers cream or pale yellow, outer surface of corolla with mauve median line.
Perennial herb, 0.4-0.7 m high. Leaves elliptic to lanceolate, sparsely hairy. Flowers blue to mauve to almost white, in a lax inflorescence. Flowering time Aug., Sept.