siikʷsíikʷ ‘common horsetail, Equisetum arvense‘; ‘northern giant horsetail, E. telmateia‘; wap̓áywap̓ay ‘scouring rush, E. hyemale‘. Also pronounced šiikʷšíikʷ and sometimes šáykʷšaykʷ.
Language Program · Confederated Tribes of the Umatilla Indian Reservation