Bamboo orchid

Names and Synonyms

Common Names

• Bamboo Orchid

Scientific Names

Accepted name

Synonyms

• Bletia graminifolia

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 ordered under Asparagales and is a member of the orchid family, Orchidaceae. Specifically, it is categorized under the genus Arundina.

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant exhibits a diverse geographical distribution spanning across different regions of Asia and the Indian Ocean. In the Western Indian Ocean, it can be found growing in Mauritius and Réunion. Its presence in China is also well-documented across multiple provinces. Specifically, it inhabits the South-Central and Southeast regions of China. Additionally, the species is native to the tropical island of Hainan.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Ecology

The ecology of Arundina graminifolia is characterized by its ability to inhabit a broad altitudinal spectrum, allowing it to thrive in diverse topographical settings. This species demonstrates significant ecological plasticity, occupying habitats ranging from sea level up to a maximum elevation of 2200 m AMSL. This wide elevational range suggests an adaptability to varying temperature regimes and moisture gradients, enabling it to colonize environments from lowland tropical forests and coastal areas to higher-altitude montane regions. Such distribution patterns indicate that the plant can successfully integrate into various ecological niches within its range, provided the fundamental requirements for light and humidity are met across these varying elevations.

Elevational range max:

2200 m AMSL

Elevational range min:

0 m AMSL

Genetics

The genetics of Arundina graminifolia are characterized by significant chromosomal variation, reflecting a complex genomic structure often associated with polyploidy or hybridization processes within the Orchidaceae family. Specifically, the species exhibits diverse chromosome numbers, with documented values of 32, 40, and 42. This numerical plasticity suggests a high degree of evolutionary adaptability and genomic flexibility, which may influence the plant's morphological diversity and its ability to thrive in varied ecological niches. Such variations in the karyotype are central to understanding the cytogenetic stability and the evolutionary lineage of this medicinal orchid.

Chromosome number :

32, 40, 42

Life history

The life history of Arundina graminifolia is characterized by its status as a perennial plant, allowing it to persist through multiple growing seasons. As a member of the orchid family, its survival strategy is defined by its specific life form, categorized as both a geophyte and a cryptophyte. This means that its essential regenerative organs are protected underground, typically within specialized storage structures like tubers or rhizomes, which enable the plant to endure unfavorable environmental conditions or dormant periods before emerging to complete its reproductive cycle.

Life form :

geophyte

Life form :

cryptophyte

Lifecycle :

perennial

Morphology

The morphology of Arundina graminiifolia is characterized by its growth form as a non-woody herb and specifically a forb. It is a self-supporting plant that does not function as a climber, liana, or vine, and it acts as an independent organism rather than a parasite. The plant is terrestrial in its ecological habit, ranging from aquatic to semiaquatic environments, and it is not an epiphyte. In terms of stature, it is a relatively small species with a plant height ranging from a minimum of 0.1 m to a maximum of 0.25 m.

Aquatic :

terrestrial

Climber :

self-supporting

Epiphyte :

terrestrial

Growth form :

herb

Growth form :

forb

Parasite :

independent

Plant height max:

0.25 m

Plant height min:

0.1 m

Woodiness :

non-woody

Physiology

The physiology of Arundina graminifolia is characterized by a C3 photosynthetic pathway, which governs its carbon fixation processes and metabolic efficiency. The plant's vegetative structure features distinct leaf morphology, where individual leaves exhibit a length ranging from a minimum of 8 cm to a maximum of 30 cm. Accompanying this longitudinal growth, the leaf width varies significantly, measuring as narrow as 0.5 cm at its minimum and reaching up to 1.5 cm at its maximum, contributing to the overall slender and linear architectural profile of the foliage.

Leaf length max:

30 cm

Leaf length min:

8 cm

Leaf width max:

1.5 cm

Leaf width min:

0.5 cm

Photosynthetic pathway :

C3

Reproduction

The reproduction of Arundina graminifolia is characterized by the development of a specialized fruit structure classified as a capsule. These capsules are dehiscent, meaning they split open at maturity to facilitate the dispersal of seeds. The dimensions of the fruit vary, typically ranging in length from a minimum of 3.5 cm to a maximum of 5.5 cm.

Dehiscence :

dehiscent

Fruit length max:

5.5 cm

Fruit length min:

3.5 cm

Fruit type :

capsule

Sources: Global Inventory of Floras and Traits (GIFT)

Plant Parts

Arundina graminifolia has 4 reported plant parts identified across 4 scientific publications and several other databases that are studied for medicinal purposes. The most consistently reported plant part include flower, leaf, rhizome, root.

Flower

1. Frontiers in plant science

Leaf

1. Frontiers in plant science

Rhizome

1. Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica

Root

1. Frontiers in plant science

Chemicals

Arundina graminifolia has 7 reported phytochemicals identified across 4 scientific publications and several other databases. The most consistently reported chemicals include BIBENZYL, FLAVONE, Flavonoids, Glycosides, Phenanthrenes.

BIBENZYL

1. Frontiers in plant science

FLAVONE

1. Frontiers in plant science

Flavonoids

1. Frontiers in plant science

Glycosides

1. Journal of ethnopharmacology

Phenanthrenes

1. Journal of ethnopharmacology

ketones

1. Journal of ethnopharmacology

phenylpropanoid

1. Frontiers in plant science

Activities

Arundina graminifolia has 2 reported activities identified across 4 scientific publications and several other databases. The most consistently reported activities include Antibacterial, Antidote.

Antibacterial

1. Journal of ethnopharmacology

Antidote

1. Journal of ethnopharmacology

Medicinal Uses

Arundina graminifolia has 6 reported medicinal uses identified across 4 scientific publications and several other databases. The most consistently reported uses include bronchitis, food poisoning, pneumonia, rheumatism, snake bites.

Most Reported Uses

Preparations