Impatiens platypetala Lindley

Impatiens platypetala Lindley




Balsamina sumatrana Miq.

Vernacular Names


Pacar leuweung, pacar tere (Sundanese), pacar banyu (Javanese).

Geographical Distributions

Impatiens platypetala is widely distributed in Southeast Asia, common in Malaysia and Indonesia.


Impatiens platypetala is a perennial herb that can grow up to 30-100 cm tall and it is erect or decumbent.

The leaves are arranged 3-whorled but sometimes opposite, ovate to ovate-elliptical, measure 6-11.5 cm x 1-3.5 cm, attenuate at base, acute to acuminate at apex, with shallowly serrate margins and petiole 0.7-2.8 cm long .

The flowers are solitary, with slender pedicel and 4-6.5 cm long. The lat­eral sepals are lance-shaped to ovate, 7-12 mm long and acuminate. The lower sepal is shallowly navicular, 8-12 mm long, abruptly constricted into a curved, with slender spur 20-40 mm long, and whitish or greenish. The petals are flat and obcordate. The dorsal petal measures 11-14 mm x 7-9 mm while the lateral petals are 19-21 mm long and they are shallow­ly emarginated. The upper pair is slightly smaller than the lower pair. The petal is either pink, rose, purple, violet, white, or white with a coloured eye.

The capsule is spindle-shaped, measures 16-­18 mm x 4-5 mm and smooth.

Ecology / Cultivation

Impatiens platypetala is a vari­able species, and occurs in lowlands and montane forests, growing in gullies, along streams, in damp, shaded and semi-shaded localities, forest clearings, often gregarious, at 100-1600 m altitude.

Line Drawing / Photograph



1.       Plant Resources of South-East Asia No.12(2): Medicinal and poisonous plants 2.