Accepted name: Dendrochilum carinatum Carr, J. Malayan Branch Roy. Asiat. Soc. 11: 74 (1933)

Subgenus – Platyclinis. Section – Eurybrachium.

This photo was taken by Peter O'Byrne and is reproduced courtesy of Swiss Orchid Foundation at the Herbarium, Jany Renz.
This photo was taken by Peter O'Byrne and is reproduced courtesy of Swiss Orchid Foundation at the Herbarium, Jany Renz.





Origin in the Wild




Elevation in the Wild


1,300-1800 metres


Habitat in the Wild


This species is found on mountains of northern Sumatra growing on mossy tree trunks within montane forest. This species has been collected from near the Merek-Sidikalang road at 1525 metres (Comber 2001).


The Plants Description


The rhizomes are short and branch. The pseudobulbs are an ovoid shape. The pseudobulbs measure up to 1.2cm long and 4mm in diameter. The leaves are petiolate, the petiole measures 8mm long. The leaf blades are shaped narrowly linear-lanceolate and have acute apices. The leaf blades measure 6cm long and 3mm wide.


The Inflorescence


The inflorescence is synanthous and grows from new growths just as the leaves reach their full size. The peduncle measures 5.5cm long and the rachis measures 3.5cm long. The flowers are spaced 2mm apart.


The Flowers


Between 15 and 17 flowers grow on an inflorescence. The flowers are a pale salmon colour; there is a darker coloured middle nerve on the tepals. The dorsal sepal is shaped elliptic and has an obtuse apex. The dorsal sepal measures 3.3mm long and 1.8mm wide. The lateral sepals are adnate to the column foot, are shaped obliquely ovate and have acute apices. The lateral sepals are the same length as the dorsal sepal but slightly wider. The petals are rounded and have are shortly acute. The petals measure 2.7mm long and 2.2mm wide. The labellum is obscurely trilobed. The labellum measures c2.5mm long. The side lobes are broadly rounded and the mid-lobe is semicircular. The mid-lobe is separated from the side lobes by a sinus that measures 0.9mm long. There are 4 transverse keels that join near the base. The column is straight; the apical hood is irregularly dentate. The stelidia are a triangular shape. The stelidia grow from the middle of the column and exceed the apical hood.


Herbarium Specimens


I could not locate any herbarium specimens




I couldn't find any information


Flowering Season


Flowering plants have been collected in the wild between September and November.




I do not think this species is in cultivation


Similar Species


Dendrochilum karoense (see this page for the differences)


Other Information


This species is similar to Dendrochilum karoense but differs by its unusual keels.


Reference -


COMBER, J.B. Orchids of Sumatra, 2001, Royal Botanic Gardens Kew


O'BYRNE, Peter. 2001, An A to Z of South East Asian Orchids, The Orchid Review Vol 109 n 1241, Sept-Oct p280-285


World Checklist of Selected Plant Families. 16 October 2008. The Board of Trustees of the Royal Botanic Gardens, Kew. Published on the Internet; accessed 16 October 2008.