Calamus rotang

Names and Synonyms

Scientific Names

Accepted name

Regional and Traditional Names

Sources: Wikidata

Distribution

This plant exhibits a specific geographical distribution that spans across several distinct regions. Within the Indian Subcontinent, it can be found growing in India. The species is also naturally present in Sri Lanka, further establishing its presence in South Asia. Beyond Asia, its range extends into the Caribbean region. Specifically, it has been documented in the islands of Trinidad and Tobago.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Ecology

The ecology of Calamus rotang is deeply integrated into the structural complexity of tropical rainforest ecosystems, where it functions as a climbing palm. It primarily thrives within the stratified layers of the forest, specifically utilizing the canopy to ascend toward sunlight, often anchoring itself to larger host trees to reach higher light intensities. This climbing habit allows it to navigate the dense vertical architecture of its environment, facilitating nutrient transport and photosynthesis in competitive light settings. To ensure survival against herbivory and physical damage within these crowded niches, the plant employs robust biological defenses, utilizing specialized physical structures to protect its tissues and maintain its position within the ecosystem.

Defense :

yes

Habitat :

canopy

Life history

The life history of Calamus rotang is characterized by its robust growth habit and structural complexity, manifesting primarily as a phanerophyte. As a climbing woody climber, it utilizes elevated structures to reach sunlight, with its life strategy occasionally exhibiting traits consistent with a nanophanerophyte depending on the maturity and environmental conditions of its growth form. This plant maintains a consistent vegetative presence through an evergreen deciduousness, ensuring that its photosynthetic apparatus remains active throughout various seasonal cycles without the need for annual leaf shedding. Through this combination of a phanerophyte life form and an evergreen nature, the species sustains a continuous lifecycle adapted to its specific ecological niche.

Deciduousness :

evergreen

Life form :

nanophanerophyte

Life form :

phanerophyte

Morphology

The morphology of Calamus rotang is characterized by its woody structure and its growth habit as an obligatory climber. As an independent, terrestrial species, it does not function as a parasite or an epiphyte. The plant exhibits a shrub-like growth form, featuring long, climbing shoots that can reach a maximum length of 3000 cm. While it maintains a relatively slender profile with a maximum diameter at breast height (DBH) of only 2 cm, it is capable of reaching a significant plant height with a mean measurement of 25 m.

Climber :

obligatory

DBH max:

2 cm

Epiphyte :

terrestrial

Growth form :

shrub

Parasite :

independent

Plant height mean:

25 m

Shoot length max:

3000 cm

Woodiness :

woody

Physiology

The physiology of Calamus rotang is characterized by a C3 photosynthetic pathway, which dictates its metabolic carbon fixation processes and environmental adaptation strategies. The plant exhibits significant vegetative growth, with its leaves reaching a maximum length of up to 80 cm. Structural defenses are integrated into its leaf morphology, as the presence of leaf spines serves as a primary physical deterrent. Furthermore, the plant does not function as a nitrogen fixer, meaning it relies on external soil nitrogen sources rather than symbiotic nitrogen-fixing bacteria to satisfy its nutritional requirements.

Leaf length max:

80 cm

Leaf spines :

yes

Nitrogen fixer :

no

Photosynthetic pathway :

C3

Reproduction

The reproduction of Calamus rotang is characterized by a lack of self-fertilization, as self-fertilization is absent in this species, necessitating cross-pollination processes. The resulting fruit exhibits specific morphological dimensions, maintaining a mean fruit length of 1.5 cm and a corresponding mean fruit width of 1.5 cm. In terms of visual characteristics, the mature fruit is distinguished by a black colour.

Fruit colour :

black

Fruit length mean:

1.5 cm

Fruit width mean:

1.5 cm

Self fertilization :

absent

Sources: Global Inventory of Floras and Traits (GIFT)

Plant Parts

Calamus rotang 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. Avicenna journal of phytomedicine

Conditions

Calamus rotang has 4 reported investigations on conditions identified across 1 scientific publications and several other databases. The most consistently reported conditions include cough, immunological diseases, inflammation, leprosy.

Cough

1. Avicenna journal of phytomedicine

Immunological diseases

1. Avicenna journal of phytomedicine

Inflammation

1. Avicenna journal of phytomedicine

Leprosy

1. Avicenna journal of phytomedicine

Preparations

Calamus rotang has 1 reported preparations identified across 1 scientific publications and several other databases. The most consistently reported preparations include aqueous extract of Calamus rotang root.

Aqueous extract of calamus rotang root

1. Avicenna journal of phytomedicine