Ethanolic and aqueous extracts obtained from nine plant species from seven families selected depending on their use in Turkish folk medicine, including Citrillus lanatus (Thunb.) Matsum. (seed), Jasminum fruticans L. (branches), Juniperus drupacea Labill. (fruits), Juniperus nana L. (fruit and leaves), Juniperus oxcycedrus L (fruit and leaves), Mentha longifolia L. (herba), Pinus nigra ssp. pallasiana (Lamb.) Richt. (fruits), Plantago lanceolata L. (leaves), and Zea mays L. (seed) were evaluated for their in vivo anthelmintic activity. Among the plant extracts studied, both ethanolic and aqueous extracts of Jasminum fruticans, Mentha longifolia and Pinus nigra ssp. pallasiana, the aqueous extracts of Zea mays, the ethanolic extracts of Citrillus lanatus, Juniperus drupacea (fruit), Juniperus oxcycedrus and Plantago lanceolata displayed significant anthelmintic activity against pinworrns, Syphacia obvelata and Aspiculuris tetraptera, in mice. Rest of the extracts from plants did not show any remarkable anthelmintic activity. The results were considered significant at p < 0.05. (c) 2006 Elsevier Ireland Ltd. All rights reserved.