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A cannabis subspecies native to central Asia known for autoflowering traits and lower THC content.
Cannabis ruderalis is a lesser-known subspecies of cannabis native to central Russia, central Asia, and eastern Europe. Unlike indica and sativa, ruderalis plants are small, typically reaching only one to two feet in height, and they produce relatively low levels of THC. What makes ruderalis valuable to modern cannabis breeding is its unique autoflowering trait.
Ruderalis evolved in harsh climates with short growing seasons and extreme light conditions, which led to a crucial adaptation: it flowers based on age rather than changes in the light cycle. While indica and sativa plants require specific light schedules (typically 12 hours of darkness) to trigger flowering, ruderalis begins flowering automatically after a set number of weeks. Breeders have crossed ruderalis genetics into indica and sativa lines to create autoflowering hybrids that are much easier to grow.
Pure ruderalis strains are rarely consumed due to their low cannabinoid content. However, ruderalis genetics are the foundation of the entire autoflowering seed market, which has become hugely popular among home growers. Modern autoflower hybrids inherit the compact size and automatic flowering schedule from their ruderalis parent while expressing the potency and flavor of their indica or sativa parent. This has made cannabis cultivation accessible to growers with limited space, experience, or control over lighting.
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