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This species is accepted, and its native range is Sumatera.


Utami, N. Kew Bull (2011) 66: 187.

Morphology General Habit
Perennial herb up to 1 m tall, stems erect, red and green, glabrous
Morphology Leaves
Leaves alternate, somewhat congested towards the apices of the stems; lamina ovate to elliptic, 20 – 90 mm by 20 – 30 mm, base acute, margin serrate, apex obtuse to acute to acuminate, lateral vein 5 – 7 pairs; petiole slender, 10 – 30 mm long, red and green
Morphology Reproductive morphology Inflorescences
Inflorescences 2 – 5-flowered; flowers white with violet on the base and the spur
Morphology Reproductive morphology Inflorescences Peduncles
Peduncles c. 40 mm long, glabrous, basal part pinkish, upper part green
Morphology Reproductive morphology Inflorescences Bracts
Bracts linear-lanceolate, c. 10 mm long, acute, green
Morphology Reproductive morphology Flowers Pedicel
Pedicel c. 20 mm long
Morphology Reproductive morphology Flowers Calyx
Lower sepal bucciniform, c. 15 × 8 mm, abruptly constricted into a curved short spur; spur c. 3 mm long, violet, glabrous Lateral sepals 2, ovate, c. 13 × 8 mm long, white with pinkish tip, glabrous
Morphology Reproductive morphology Flowers Corolla
Dorsal petal cucullate, white with pinkish c. 1 × 1 mm wide, green on the tip Lateral petals united, c. 15 × 5 mm; upper part of each pair ± obovate, c. 5 × 10 mm, lower part of each pair ± emarginate, ovate, c. 1 × 0.5 mm
Morphology Reproductive morphology Flowers Gynoecium Ovary
Ovary glabrous
Morphology Reproductive morphology Fruits
Fruit a capsule, fusiform, c. 7 mm long, c. 2 mm in diam., glabrous.
Known only from KerinciSeblat National Park (100°31'18"E, 1°07'13"S) on Mt Khunyit in Sumatra, Indonesia.
Near threatened (NT) following the IUCN (2001) categories. With a limited area of distribution.
Flowering June – August.
The specific epithet refers to the collecting locality, Mt Kunyit, where this species was first recognised. Impatiens kunyitensis is easily distinguished from all other Sumatran Impatiens species. It has a unique combination of characters, including red and green stems and white flowers in which the lower sepal is bucciniform and abruptly constricted into a curved, short, violet spur. This combination of characters makes it difficult to determine the relationships of I. kunyitensis to other taxa. At first glance it even looks like a species of Paphiopedilum Pfitzer. Grey-Wilson (1989) noted that, within Malesia, Sumatra seems to correspond to a centre of species diversity and its evolutionary complexity is unparalleled amongst the islands of South East Asia. Therefore, it is not surprising that many new taxa of Impatiens have been, and are likely to be, found on Sumatra. The specimen collected from the field did not have good flowers. Therefore flowers were taken from cultivated material in Cibodas Botanical Garden, Java, to supplement the type.

Native to:


Impatiens kunyitensis Utami appears in other Kew resources:

First published in Kew Bull. 66: 187 (2011)

Kew Backbone Distributions
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at and
© Copyright 2017 World Checklist of Selected Plant Families.

Kew Bulletin
Kew Bulletin

Kew Names and Taxonomic Backbone
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at and
© Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families.