Cycas siamensis

commonly known as the Siamese cycad or Thai cycad, is a species of cycad native to Thailand and surrounding areas in Southeast Asia. It belongs to the family Cycadaceae, which includes other cycad species. Cycas siamensis is a slow-growing plant that can reach a height of about 2 to 3 meters (6.5 to 10 feet) with a spread of 2 to 3 meters (6.5 to 10 feet).

The Siamese cycad has a sturdy trunk topped with a crown of dark green, pinnate (feather-like) leaves. Each leaf consists of numerous leaflets arranged along a central stalk, giving it a fern-like appearance. The leaflets are typically narrow, elongated, and have a glossy texture.

This cycad is commonly cultivated as an ornamental plant due to its attractive foliage. It prefers well-draining soil and is adaptable to a range of soil types. Cycas siamensis can tolerate both full sun and partial shade but generally thrives in bright, indirect light. It is also known for its ability to withstand drought conditions.

Cycas siamensis is a dioecious plant, meaning it has separate male and female plants. The male plants produce cone-like structures called strobili that bear pollen, while the female plants produce larger, rounded structures called seed cones. The plant's reproductive cycle is slow, with the cones taking several years to develop and mature.

It's worth noting that while cycads are fascinating and beautiful plants, some species, including Cycas siamensis, contain toxins that can be harmful if ingested. Therefore, caution should be exercised around these plants, especially if you have children or pets.