Impatiens macrocarpa Hook. f. in Bull. Misc. Inform. 1911: 355. 1911; Gamble, Fl. Pres. Madras 142. 1915.

Under shrubs with spreading branches. Leaves opposite at base and in whorls of 3 - 5 above, obovate-oblanceolate, serrulate, 8 - 10 cm long; petioles 3 - 5 cm long. Flowers solitary or binate, white; pedicels stout, decurved, 3.5 - 5 cm long, 5 - 8 cm long in fruit. Lateral sepals ovate,cuspidate-acuminate, 4 - 6 mm long. Lip cymbiform , ca 6 mm long; Spur stout, incurved, ca 1.2 cm long. Standard obcordate-reniform, cuspidate, 1.5 - 2 cm across. Wings sessile, stout, bilobed; basal lobes oblong-obovate, spreading or recurved; distal lobes oblong, smaller than basal ones, erect. Capsules obliquely ovoid, beaked, 1.5 - 2 cm long, many-seeded; seeds ca 5 mm long, chestnut-coloured, granulate.

Fl. & Fr. Not known.

Distrib. India: Southern W. Ghats, 1800 m. Kerala (Devicolam).

Endemic; so far recorded only from type locality.