Foxtail Orchid

Names and Synonyms

Common Names

• Foxtail Orchid

Scientific Names

Accepted name

Synonyms

• Gastrochilus blumei
• Gastrochilus garwalicus
• Gastrochilus spicatus
• Saccolabium guttatum
• Saccolabium praemorsum
• Saccolabium spicatum
• Rhynchostylis garwalica
• Rhynchostylis retusa f. albiflora
• Aerides guttata
• Gastrochilus rheedei
• Saccolabium guttatum var. giganteum
• Saccolabium guttatum var. holfordii
• Rhynchostylis albiflora
• Sarcanthus guttatus
• Saccolabium blumei
• Saccolabium furcatum
• Saccolabium heathii
• Saccolabium macrostachyum
• Saccolabium retusum
• Saccolabium rheedei
• Orchis lanigera
• Gastrochilus retusus
• Epidendrum indicum
• Epidendrum hippium
• Epidendrum retusum
• Aerides praemorsa
• Aerides retusa
• Aerides spicata
• Aerides undulata
• Limodorum retusum
• Rhynchostylis guttata
• Rhynchostylis praemorsa
• Saccolabium blumei var. majus
• Saccolabium garwalicum

Sources: Wikidata, Catalogue of Life

Taxonomical Classification

This plant belongs to the kingdom Plantae and the phylum Streptophyta, falling under the class Equisetopsida and subclass Magnoliidae. Within the order Asparagales, it is classified under the family Orchidaceae. Finally, it is identified by the genus Rhynchostylis.

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant exhibits a broad distribution across several key regions in Asia. In China, it is specifically found within the South-Central territories. Within the Indian Subcontinent, its presence is noted in the state of Assam and across the nation of India. The species also inhabits the landscapes of Bangladesh and the East Himalaya region. Together, these locations define the primary natural range of this medicinal orchid.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Ecology

The ecology of Rhynchostylis retusa is defined by its specific niche within montane forest ecosystems, where it thrives within a precise altitudinal belt. This species is most commonly found inhabiting elevations ranging from a minimum of 700 m AMSL to a maximum of 800 m AMSL. Within this narrow elevational range, the plant relies on the specific microclimates provided by host trees, typically occupying the branches of large forest trees in humid, tropical, or subtropical environments. The environmental conditions at these altitudes provide the necessary balance of moisture, light filtration, and air circulation essential for its epiphytic growth habit.

Elevational range max:

800 m AMSL

Elevational range min:

700 m AMSL

Life history

The life history of Rhynchostylis retusa is characterized by its classification as a chamaephyte, a life form that allows it to thrive in its specific ecological niches. Within this framework, its developmental strategy aligns with the chamaephyte category, indicating that its perennating buds are located close to or just above the substrate level, which facilitates its survival through varying environmental conditions. This life history pattern supports its growth as an epiphytic orchid, where it manages its lifecycle by anchoring to host trees and utilizing specialized aerial roots to absorb moisture and nutrients from the atmosphere. By maintaining its regenerative structures in a protected, low-profile position, the plant ensures long-term persistence and the ability to recover following seasonal changes or physical disturbances in its tropical habitat.

Life form :

chamaephyte

Morphology

The morphology of Rhynchostylis retusa is characterized by its growth form as a non-woody herb, reaching a maximum plant height of approximately 0.4 m. It functions as an obligatory epiphyte, growing upon other plants for structural support without being a parasite, as it remains an independent organism in terms of nutrient acquisition. While it possesses climbing tendencies, it is categorized as a self-supporting climber.

Climber :

self-supporting

Epiphyte :

obligatory

Growth form :

herb

Parasite :

independent

Plant height max:

0.4 m

Woodiness :

non-woody

Sources: Global Inventory of Floras and Traits (GIFT)

Plant Parts

Rhynchostylis retusa 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. BMC complementary and alternative medicine

Chemicals

Rhynchostylis retusa has 1 reported phytochemicals identified across 1 scientific publications and several other databases. The most consistently reported chemicals include Flavonoids.

Flavonoids

1. Natural product research

Activities

Rhynchostylis retusa has 2 reported activities identified across 1 scientific publications and several other databases. The most consistently reported activities include Antimicrobial, Antioxidant.

Antimicrobial

1. Natural product research

Antioxidant

1. Natural product research

Conditions

Rhynchostylis retusa has 2 reported investigations on conditions identified across 1 scientific publications and several other databases. The most consistently reported conditions include asthma, tuberculosis.

Asthma

1. BMC complementary and alternative medicine

Tuberculosis

1. BMC complementary and alternative medicine

Preparations

Rhynchostylis retusa has 2 reported preparations identified across 1 scientific publications and several other databases. The most consistently reported preparations include decoction, diethylyl ether fraction of the roots.

Decoction

1. BMC complementary and alternative medicine

Diethylyl ether fraction of the roots

1. BMC complementary and alternative medicine