Giant orchid

Names and Synonyms

Common Names

• Giant orchid
• Giant Orchid
• Sugar Cane Orchid
• Tiger Orchid

Scientific Names

Accepted name

Synonyms

• Grammatophyllum macranthum
• Grammatophyllum fastuosum
• Grammatophyllum giganteum
• Grammatophyllum sanderianum
• Pattonia macrantha

Regional and Traditional Names

Sources: Wikidata, Catalogue of Life

Taxonomical Classification

This plant belongs to the kingdom Plantae and is classified under the phylum Streptophyta and the class Equisetopsida. Within the subclass Magnoliidae, it is further organized into the order Asparagales and the family Orchidaceae. Finally, its specific taxonomic identity is established within the genus Grammatophyllum.

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant exhibits a broad geographical distribution across several key regions in Southeast Asia. Within the Indo-China territory, it can be found growing in Laos, Myanmar, Thailand, and Vietnam. Additionally, its presence extends into the Malesia region, specifically on the island of Borneo. These diverse locations suggest that the species is well-adapted to various tropical environments. Consequently, its range spans from mainland Southeast Asia to the major islands of the archipelago.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Life history

The life history of Grammatophyllum speciosum is characterized by its status as a perennial species, allowing it to maintain a long-lived and enduring presence within its tropical ecosystem. As a perennial, the plant does not complete its life cycle in a single season but instead undergoes continuous growth over many years, often reaching massive proportions that reflect its longevity. Its development involves a sustained vegetative phase where it establishes extensive structures to support its significant biomass, followed by periodic reproductive cycles. This extended lifecycle enables the plant to invest heavily in large-scale flowering and seed production, contributing to its stability and dominance in its natural habitat over multiple growing seasons.

Lifecycle :

perennial

Morphology

The morphology of Grammatophyllum speciosum is characterized by its status as a large herb with a non-woody structure. It functions as an obligatory epiphyte, growing upon other plants for support rather than being terrestrial. Despite its climbing tendencies, it is classified as a self-supporting climber. The plant can reach a maximum height of 3 meters and maintains an independent existence, as it is not a parasite.

Climber :

self-supporting

Epiphyte :

obligatory

Growth form :

herb

Parasite :

independent

Plant height max:

3 m

Woodiness :

non-woody

Reproduction

Reproduction in Grammatophyllum speciosum is characterized by the production of highly minute seeds that facilitate wide dispersal. The seed mass is remarkably consistent across the population, with a measured mean seed mass of 2.5e-06 g. This uniformity is reflected in the extreme narrowness of its weight range, as both the maximum and minimum recorded seed mass values are identical at 2.5e-06 g. Such minimal seed weight is typical for many epiphytic species, allowing the reproductive units to be easily transported by wind currents to colonize new habitats.

Seed mass mean:

2.5e-06 g

Sources: Global Inventory of Floras and Traits (GIFT)

Plant Parts

Grammatophyllum speciosum has 1 reported plant parts identified across 1 scientific publications and several other databases that are studied for medicinal purposes. The most consistently reported plant part include root.

Root

1. Heliyon

Chemicals

Grammatophyllum speciosum has 1 reported phytochemicals identified across 1 scientific publications and several other databases. The most consistently reported chemicals include Flavonoid.

Flavonoid

1. Heliyon

Conditions

Grammatophyllum speciosum has 2 reported investigations on conditions identified across 1 scientific publications and several other databases. The most consistently reported conditions include skin cancer, wound healing.

Skin cancer

1. Heliyon

Wound healing

1. International journal of cell biology

Preparations

Grammatophyllum speciosum has 2 reported preparations identified across 1 scientific publications and several other databases. The most consistently reported preparations include Ethanolic Extract, aerial part and root extracts.

Ethanolic extract

1. International journal of cell biology

Aerial part and root extracts

1. Heliyon