Accepted name: Dendrochilum mirabile J.J.Wood, Lindleyana 7: 77 (1992)

Subgenus – Platyclinis. Section – Longicolumna.

 The text is below the photos
This photo was taken by the late Jim Comber and bequeathed to the Royal Botanic Gardens Kew. The photo is reproduced with permission from the Director, Royal Botanic Gardens, Kew.
  This photo was taken by Todd Barkman and is used with permission.





Origin in the Wild




Elevation in the Wild


2,300 - 2,600 metres


Habitat in the Wild


This species has been collected on Mount Bandahara in the Mount Leuser Nature Reserve in Aceh. Jim Comber wrote that a plant was found growing close to the ground on stunted trees in montane forest (Comber 2001). The specimen at Leiden was collected at the Gunung Leuser National Park in Aceh at 2600 metres between camps 2-3 and in montane scrub.


The Plants Description


The pseudobulbs cluster together along the short rhizomes. The pseudobulbs are shaped ovoid to cylindrical and measure 1.5-4.5cm long and 1.3cm wide. The pseudobulbs are a pale yellow colour. The leaves are petiolate; the petiole measure 1.0cm long. The leaf blades are shaped narrowly elliptic and have acute apices. The leaf blades measure 13.5cm long and 2cm wide.


The Inflorescence


The inflorescence grows as the leaves are developing and just before they are have fully expanded. The peduncle is flattened, curved and measures 9.0-13.5cm long. The rachis is arched or pendent and measures 8-12cm long.


The Flowers


The flowers are non-rescupinate and contain 30-43 on an inflorescence. The flowers are pale greenish; the column and labellum are pale red-brown. The dorsal sepal is shaped oblong and has an obtuse apex. The dorsal sepal measures 6-7.5mm long and 1.2-1.3mm wide. The lateral sepals are slightly wider and have slightly cucullate apices. The petals are shaped linear and have obtuse apices. The petals measure 6mm long and 0.5mm wide. The labellum is entire and coiled, features which make this species unmistakable.  The labellum has minutely papillose margins. The labellum measures 6.2mm long and 0.7mm wide. The column is slender and measures 5-6mm long. There are no stelidia.


Herbarium Specimens




Royal Botanic Gardens, Kew (K)


Specimen K000078248 (drawing)

Specimen K000078249 (drawing)

Specimen 55410.000

Specimen K000078246 (photo)

Specimen K000078247 (drawing)


National Herbarium Netherlands (L)


Specimen L0058677 (photo)







I could find no record of scent.


Flowering Season


Flowering plants have been collected in the wild during April.




I do not think this species is in cultivation.


Similar species


Dendrochilum planiscapum


Additional Comments


Jim Comber wrote that this species most resembles Dendrochilum planiscapum, which also has the coiled labellum, flattened peduncle and non-resupinate flowers. This species is different from it because there are no stelidia; there are smaller flowers and a denser inflorescence.


Reference -


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


World Checklist of Selected Plant Families. 28 August 2008. The Board of Trustees of the Royal Botanic Gardens, Kew. Published on the Internet; accessed 28 August 2008.