Impatiens versicolor

Description. – Plants erect to suberect or ascending, usually glabrous or only with loose hairs, or sometimes densely hairy on upper leaf surface, stems and pedicels later glabrescent, stems 20 – 50 cm long. Leaves with 4 – 8 cm long petiole, petiole with 0 – 2 (4) pairs of extrafloral nectaries, lamina ovate, acuminate, 35 – 46 × 21 – 34 mm, margin with 10 – 15 pairs of extrafloral nectaries. Inflorescence with (1) 2 flowers, peduncle 5.5 – 16.5 mm long, pedicel 11 – 18 mm long. Flowers white, petal base barely yellow, purple maculae at base large, occasionally single pink flowers appearing on the same plant. Lateral sepals 4.5 – 6.5 × 1 – 2 mm. Lower sepal navicular, 7 – 9 mm long and 3 – 4.5 mm deep, abruptly constricted into a spiraled, usually filiform spur, 13 – 19 mm long. Dorsal petal divided to less than 1 / 3 of its length, 7 – 11 × 10.5 – 16.5 mm. Lateral united petals up to 23 mm long, upper lateral united petals 10 – 18 × 5 – 7.5 mm, not overlapping lower lateral united petals, base of upper lateral petal with dark pink or red and yellow maculae, lower lateral petal 13 – 19.5 × 5 – 7.5 mm. Ovary glabrous, 4 – 5 mm long. Fruit glabrous, 13 × 6 mm. Figures 2, 6 D – E, 15.

Ecology. – Wet rocks and roadbanks in montane rainforest, 1800 – 1900 m.