Plant · GBIF taxon 5602713
Cannabis sativa ruderalis
Cannabis sativa ruderalisAlso known as Ruderalis, Auto-Flowering Hemp, Russian Hemp, Feral Hemp
Originating in the harsh climates of Central and Eastern Europe and Russia, this rugged wild cannabis variety adapted to short growing seasons by developing auto-flowering capabilities. Unlike its larger relatives, it transitions from vegetative growth to flowering automatically based on age rather than shifts in daylight hours. Its short stature and tough nature allow it to thrive in disturbed soils, gravel pits, and roadside ditches across its range.
Auto-FloweringAnnualHardy
—observations
—countries
—peak records
Not EvaluatedConservation statusIUCN Red List categoriesLCNTVUENCREWEXNot Evaluated — not placed on the risk ladderRed List categories, explained →
Diet & prey
- Sunlight
- Soil Nitrogen
- Water
Predators
- Spider Mites
- Aphids
- Caterpillars
ThreatsWeed eradication programs, habitat loss, hybridization with cultivated crops
HabitatsDisturbed ground, roadsides, waste places, steppes, riverbanks
Life span8 to 12 weeks
Size / weightNot available
Classification
- FamilyCannabaceae
- SpeciesCannabis sativa ruderalis
Range data is not available yet.
Interaction riskHigh
- Low
- Moderate
- High
- Very high
- Why interaction risk is high
- Contains cannabinoids toxic to pets if ingested; observe plants without allowing domestic animals to graze.
- Why it is dangerous
- Foliage contains active cannabinoids that cause ataxia, lethargy, vomiting, and severe disorientation in dogs and cats.
- How to recognize a risky encounter
- Look for low, single-stemmed plants with palmately compound leaves featuring serrated margins.
- What to do
- Prevent dogs and other pets from chewing on foliage when walking near wild or feral patches.
Responsible observation
- Field Spotting: Look for small, low-growing plants with slender palmate leaves along roadsides.
- Respect Wild Stands: Avoid damaging or removing wild plants, as they play an important role in local ecology.
Help improve the field guideSomething wrong?
Checking your Fauna account…Report a name, category, or profile issue for review.







