Gastrorchis humblotii plate
Gastrorchis humblotii plate from
Lindenia Iconographie des Orchidées

Scientific Classification
Kingdom: Plantae
Division: Magnoliophyta
Class: Liliopsida
Order: Asparagales
Subfamily: Epidendroideae
Tribe: Arethuseae
SubTribe: Bletiinae
Genus: Gastrorchis
Thoaurs 1809
Type Species
Gastrorchis tuberculosa

Gastrorchis is a genus of large, mostly terrestrial orchids (family Orchidaceae). The genus has about 8 species and is abbreviated as Gs. in horticultural trade.


These species are found in tropical Africa and Madagascar.


The species in this genus are very similar and have been classified as Phaius species. The plants differ by being smaller in size, less robust and having a different floral structure


Plants require shade around 1000 to 2500 footcandles and intermediate to warm temperature requirements depending on the species. Plants should be potted in a mix that retain some moisture such as 40% fir bark, 30% sphagnum moss, and 30% soil. Medium should be kept moist during growing season. When growth matures with hold watering for 3 to 4 weeks. Repotting should be done after flowering. . New plants can be obtained from the old spikes by laying the spike out in sand and half covering it.


The genus is named after the Greek words "gaster" (stomach or belly) and "orchis" (orchid) in reference to the sack-like lip base.


  1. Gastrorkis Schltr.,1924
  2. Gastorchis misspelling

Species Edit 12:26, March 21, 2012 (UTC)

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