Thundarena Seeds (Calamus ovoideus) Rattan palm 
Quantity : 10 Seeds
 
Calamus ovoideus, commonly known as Thundarena, is a climbing rattan palm species endemic to the wet tropical forests of southwestern Sri Lanka. Belonging to the Arecaceae family, this evergreen liana is notable for its slender, flexible stems that can reach up to 40 meters in length, allowing it to ascend through the forest canopy.


🌿 Botanical Profile

Family: Arecaceae
Genus: Calamus
Species: ovoideus
Common Name: Thundarena
Growth Form: Evergreen climber (liana)
Native Range: Southwestern Sri Lanka
Habitat: Lowland and lower montane rainforests, particularly in forest gaps and well-drained slopes below 1,500 meters elevation

🌱 Ecological and Cultivation Details
Calamus ovoideus thrives in humid tropical climates with average temperatures around 27°C and annual rainfall of approximately 5,000 mm. It prefers lateritic soils rich in iron and aluminum oxides, commonly found on well-drained slopes. The plant exhibits optimal growth when its roots remain shaded while its stems climb towards sunlight, making forest gaps and edges ideal for its development .


🪴 Propagation and Management
Propagation is primarily achieved through seeds, which require careful handling due to their sensitivity to drying. Seeds are typically sown in nursery beds with a mixture of soil and sawdust, kept moist, and partially shaded to facilitate germination, which occurs between 2.5 to 3.5 months after sowing. Seedlings are ready for transplantation at 12–14 months, with improved survival rates observed when planting occurs at 16–18 months. In natural forests or plantations, it's advisable to thin the canopy to allow more light, and to manage undergrowth around young plants to promote healthy growth .

🧺 Utilization
The canes of Calamus ovoideus are valued for their strength and flexibility. They are utilized in various applications, including:

Furniture Frames: Entire canes are employed in crafting durable furniture structures.
Basketry: Split canes are woven into baskets and other handicrafts.
Woven Products: The inner cores of split canes are used in creating coarse woven items .


🌍 Conservation Status
Calamus ovoideus is considered threatened, primarily due to habitat loss and overharvesting. Conservation efforts focus on sustainable harvesting practices and habitat preservation to ensure the species' longevity .