Urtica urens
L.
Annual stinging nettle, Dwarf nettle
Urtica urens is an annual herb that is not native to California.
Bloom Period
The blue points on the map indicate observations in Calflora.
Click on the map to view observations within a specific county.
Click on the map to view observations within a specific county.
Jepson eFlora section:
eudicot
USDA PLANTS group:
Dicot
Severe skin irritation from touching the leaf or stem of this plant.
disturbed
weed, characteristic of disturbed places
Ensikat et al.: Distribution, Ecology, Chemistry and Toxicology of Plant Stinging Hairs: Since the middle of the 20th century, neurotransmitters (acetylcholine, histamine, serotonin) have been repeatedly detected in stinging hairs of Urticaceae...
