Grammatophyllum speciosum

Grammatophyllum, abbreviated as Gram in horticulture, is a genus containing 11 species of orchids.

It belongs to the family Orchidaceae, subfamily Epidendroideae, tribe Cymbidieae, subtribe Cyrtopodiinae, alliance Cymbidium.

This type is epiphytic and grows in the dense jungle of Indochina, Indonesia, Philippines, New Guinea and the South Pacific islands.

They produce many flower clusters originating from the base of the pseudobulb, with many yellow-green to olive green, waxy flowers with dark red or purple markings. The pseudobulbs are surrounded by sheaths.

These are medium to large orchids, such as the Giant Orchid or Grammatophyllum speciosum, which is the type species and probably the largest species of orchid. The pseudobulb can reach a length of 2.5 m.

Plants can develop into gigantic clusters weighing several hundred kilograms to a ton! The roots form a spectacular interlacing.

The name is derived from the Greek words gramma (letter) and phyllon (leaf), referring to the dark patches of flowers.


  • Grammatophyllum Elegans
  • Grammatophyllum fenzlianum
  • Grammatophyllum kinabaluense
  • Grammatophyllum martae
  • Grammatophyllum measuresianum
  • Grammatophyllum multiflorum
  • Grammatophyllum rumphianum
  • Grammatophyllum schmidtianum
  • Grammatophyllum Scriptum
  • Grammatophyllum speciosum (typus)
  • Grammatophyllum stapeliiflorum