Synonyms: Si Songkhram, Thai-Stick, Squirrel Tail (Hang Krarok), Tiger Tail (Hang Sua)
Genetics: Lao-Isan Landrace
Type: Point of Origin, Open Pollinated
Style: Ganja, Seeded Flowers
Farmer: Khun Seri
Sourcing: Iza
Village(s): Don Haet
District: Na Thom
Province: Nakhon Phanom
Area: Isan
Region: Northeastern Thailand
Appellation: Si Songkhram
Country: Thailand
---
Cultivation Details:
Regional Planting: July - September
Regional Harvest: January - March
Height: 2-3 metres
Classification: NLD type Landrace Population
---
Description:
The cannabis cultivated by Khun Seri is a classic Lao-Isan (Mekong) landrace population, characterized by tall, elegant ‘sativa’ morphology, long internodal spacing, and high resin production. These plants reach between 2-3 meters in height, thriving in the warm, dry climate of the Mekong river banks.
Two primary expressions are present in the population:
Tiger Tail (Hang Suea): Known for its bold, robust structure, this phenotype has thicker colas, strong lateral branching, and a dense trichome coating. The terpene profile leans toward earthy spice, herbal musk, and deep, woody undertones. Psychoactive effects are strong, clear-headed, and energizing, making it a highly sought-after selection for daytime use.
Squirrel Tail (Hang Krarok): A more delicate, elongated phenotype, producing cascading, foxtail-like colas and lighter, airier flowers. The aroma is sweet and floral, often displaying tropical fruit, mango, and subtle herbal notes. The high is uplifting, euphoric, and long-lasting, reflecting the classic cerebral effects of Mekong sativas.
The overall terpene spectrum within the population ranges from earthy spice to bright, sweet fruit, with notable mango and herbal overtones. The psychoactive effects remain clean, stimulating, and paranoia-free, making this accession a quintessential representation of Isan’s historic cannabis heritage.
---
Context:
The Si Songkhram region in Nakhon Phanom was once one of the most renowned Thai-Stick producing areas during the golden era of Thai cannabis. In the 1970s and 1980s, the legendary Thai-Sticks—premium cannabis buds tied to skewers—were produced here, destined for international markets.
The region's strategic location along the Mekong River facilitated cross-border trade with Laos, where similar Lao-Isan landraces were grown. This historical exchange enriched the genetic diversity of the Si Songkhram landrace, making it one of the most sought-after Thai sativas in the world. However, political changes and international pressure led to the criminalization of cannabis in Thailand, pushing cultivation into the shadows. Many traditional farmers abandoned their fields, leading to a severe genetic bottleneck. In recent years, the introgression of foreign genetics from modern hybrids has further diluted the purity of the ancient landrace.
Khun Seri, one of the last traditional farmers in Don Haet, continues to preserve this ancient lineage, using time-honored cultivation methods passed down through generations. His commitment to open pollination and natural selection maintains the genetic integrity of the Si Songkhram landrace, safeguarding it from extinction.
For how much longer? Who knows, he is old and there is almost no market for landrace flowers any more. Every year fewer and fewer of his neighbours choose to cultivate the old local landrace.
---
Accession and Selection Details:
Khun Seri General Population (2025)
Notes: Collected by Isabella
Type: General population, domesticate landrace
Altitude:Unknown
---
Current Status:
The Si Songkhram landrace is on the brink of extinction. Fewer farmers are cultivating it each year, leading to a severe genetic bottleneck. The introgression of foreign genetics from modern hybrids is a growing concern, threatening the purity of this ancient lineage.
Help us out in our efforts at conservation by joining the Zomia Collective on Patreon!
