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Annual or possibly short-lived perennial. Stems to c. 30 cm tall, glabrous. Lvs glabrous; petioles 3-20 mm long. Lamina 1.5-6.5 × 1-2.5 cm, ovate, coarsely and irregularly serrate; base truncate, rounded or subcordate, with blade sometimes shortly attenuate; apex acute. Infl. sub-corymbose; bracts linear, mostly entire, the lowest distantly serrate. Pedicels slender, to 2 cm long, ± glandular. Sepals 3-4 mm long, lanceolate or elliptic-lanceolate; margins often ciliate. Corolla 8-11 mm long, white; spur c. 6-7 mm long, obtuse; upper lip with rounded lobes; lower lip slightly emarginate, broad; pouch yellow and composed of dense glandular puberulence. Capsule 10-12 × 6-8 mm, broadly urceolate-oblong; base rounded; valves diverging at an obtuse angle. Seed c. 1 mm long, fusiform; wing broad, suborbicular.
Annual herb, 0.15-0.38 m high. Stems branched from base or simple, few above, somewhat pilose in upper parts, shining pallid. Leaves sessile to subsessile; blade ovate or narrowly ovate, 6-43 x 1-17 mm, apex obtuse or rounded, base subtruncate, margins entire to dentate. Flowers: in many-flowered, lax, corymbose or oblong racemes, 25-128 mm long, shortly pilose; bracts distinctly denticulate; spur ± 5 mm long, extended conical, straight; corolla upper lobes oblong and rounded at apex, lower lip bilobed, 5.0-6.4 mm long, mouth closed, palate shortly haired, white, sometimes with purple streaks on upper lip; mostly Aug.-Dec. Fruit an obovate-oblong capsule, 8.5-9.6 mm long, base obliquely ovoid, widely notched not horned, valves obliquely truncate.
Annual herb, sometimes bushy, 60-370 mm high; stems mainly branched below, few above, somewhat pilose in upper parts. Leaves ovate or oval below to lanceolate above, ± obtuse, entire to dentate. Flowers in lax, ± corymbose or oblong racemes up to 120 mm long. Corolla white, sometimes with purple streaks on upper lip; upper lobes oblong, palate shortly haired. Spur ± 5 mm long, extended conical, ± straight. Flowering time mostly Aug.-Dec. Fruit of ± oblong, widely notched, 8-9 mm long capsules.
A herb. It grows 15-38 cm tall. The stems are branched from the base. The leaves are oval and 6-43 mm long by 1-17 mm wide. There can be teeth along the edge. The flowers occur as many in a loose group 2.5-12.8 cm long.
