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

[KBu]

Utami, N. Kew Bull (2012) 67: 731. https://doi.org/10.1007/s12225-012-9403-3

Type
Type: Indonesia, Sumatra, BatangPangean Natural Reserve, DedenGirmansyah 1534 (holotype BO!).
Habit
Perennial herbs, up to 80 cm tall; stems ± erect, glabrous
Leaves
Leaves alternate, crowded on the upper part of the stem; lamina ovate to elliptic, 75 – 110 × 25 – 40 mm, coriaceous, base long cuneate, margin acutely serrate, apex acuminate; petiole 20 – 55 mm long; Inflorescences 2 – 8-flowered; terminal, flowers yellow with red spot
Peduncles
Peduncles c. 40 mm long
Bracts
Bracts ovate, c. 5 × 15 mm, acute, pale green
Pedicel
Pedicels c. 35 mm long, lateral sepals 2, ovate, c. 7 × 10 mm, pale yellow-orange, glabrous
Calyx
Lower sepal deeply navicular, c. 20 × 28 mm, yellow with a red spot inside, abruptly constricted into a curved spur, c. 15 mm long, reddish yellow, glabrous
Corolla
Dorsal petal slightly cucullate, broadly obovate, c. 5 × 14 mm, strongly reflexed in the upper half, yellow with red blotches Lateral petals united, upper part of each pair broadly ovate, short-apiculate at apex, c. 8 × 10 mm, yellow mixed with red spot, lower part of each pair lanceolate, c. 6 × 51 mm, yellow mixed with red spot
Ovary
Ovary glabrous
Fruits
Fruit a capsule, fusiform, c. 7 × 22 mm.
Distribution
Endemic to Indonesia: West Sumatra. Only found in BatangPangean Natural Reserve, Sijunjung District (00°43′18″S, 101°074′18″E).
Ecology
Present on limestone; alt. c. 400 m.
Phenology
Flowering May – Oct.
Conservation
Data Deficient (DD) following IUCN (2001) criteria. This species was collected from one locality, where it was growing in a small population. More data regarding the populations are needed.
Note
Impatiens tribuana is closely related to I. laumonieri T. Shimizu but can be distinguished by the dorsal petal which is reflexed/folded in the upper half, the yellow lower sepal with a red spot inside and the presence of two lateral sepals only; I. laumonieri has an orbicular dorsal petal, and four lateral sepals. The species epithet tribuana refers to the three elements: land, sea and air in which a special forces soldier must operate, in honour of TNI-KOPASSUS.

Native to:

Sumatera

Impatiens tribuana Utami & Nurainas appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Aug 7, 2012 Laumonier, Y. [4311], Sumatera K000675641 isotype

First published in Kew Bull. 67: 732 (2012)

Literature

Kew Bulletin

  • Utami , N. (2011). Impatiens kunyitensis (Balsaminaceae), a new species from Sumatra, Indonesia. Kew Bull. 66: 187 – 190.CrossRefGoogle Scholar
  • Utami , N. (2009). Impatiens rubricaulis (Balsaminaceae), a new species of Impatiens (Balsaminaceae) from west Sumatra. Reinwardtia 13: 93 – 94.Google Scholar
  • Utami , N. (2005). Two new species of Impatiens (Balsaminaceae) from Batanggadis National Park, North Sumatra, Indonesia. Blumea 50: 443 – 46.CrossRefGoogle Scholar
  • IUCN (2001). IUCN Red List Categories and Criteria: Version 3.1. IUCN Species Survival Commission, Gland and Cambridge.Google Scholar
  • Shimizu, T. & Utami, N. (1997). Three new species of Impatiens (Balsaminaceae) added to Flora Malesiana. Kew Bull. 52: 435 – 442.CrossRefGoogle Scholar
  • Grey-Wilson, C. (1989). A revision of Sumatran Impatiens. Studies on Balsaminaceae VII. Kew Bull. 44: 67 – 106.CrossRefGoogle Scholar

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Kew Names and Taxonomic Backbone
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© Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0