Dendrochilum exasperatum Ames 1920 SUBGENUS Platyclinis SECTION Cruiciformia


Photos by Tom Ballinger and Flickr Orchid Photo Website

Part shade Cool Cold Fall

Common Name The Smooth Dendrochilum [refers to the inflorescence]

Flower Size

Found in Sabah and Sarawak Borneo above 1800 meters as a miniature sized, cool to cold growing epiphyte with an oblong-lanceolate leaf that blooms in the fall on a much longer than the leaf, to 11.2" [28 cm] long, arching, nutant, many flowered inflorescence with longer than the ovary floral bracts.

Ames stated that this species was close to D quinquelobum = D gibbsiae but the flowers are much larger in this species as well as the column is much longer and thinner.

Very similar to D gibbsiae in the lip and cloumn but in D exasperatum the leaves are much shorter, broader, more obtuse and have a distinctive transverse venation while the floral bracts and flowers are larger and the lip side lobes are less well developed.


References W3 Tropicos, Kew Monocot list , IPNI ; *Studies in the Family Orchidaceae Vol 6 pg 50 Ames 1920; The Plants of Mount Kinabalu Vol 2 Orchids Beaman, Wood, Beaman & Beaman 1993 drawing good; A Checklist of the Orchids of Borneo Wood & Cribb 1994 drawing good; Orchids of Borneo Wood Vol 3 1997 drawing fide; Orchids of Sarawak Wood & Beaman etal 2001; Dendrochilum of Borneo Wood 2001 drawing/photo fide; The Orchids of Mount Kinabalu Vol 2 Wood, Beaman, Lamb, Chu Lun and Beaman 2011 drawing fide;