Snake weed is a herb found by searching a marshy jungle vine. It is dropped in grimy form by Jogres and Tribesmen. It is a secondary ingredient in herblore used with rogue's purse to make Relicym's balm potion. It is also used as second ingredient to make sanfew serum.
Twenty marshy jungle vines are found south-west of Tai Bwo Wannai in west Karamja. Located near the coast, just north of the Horned Graahk. They are bright green in colour with yellow spikes around its vines. The average time it takes to harvest a single snake weed may decrease with higher herblore levels.