• Polygonium M. Vavrdová, 1966 †
• Polygonium acuminosum (Cramer & Díez, 1977) Sarjeant & Stancliffe, 1994 †
• Polygonium breviradiatum (Uutela & Tynni, 1991) Sarjeant & Stancliffe, 1994 †
• Polygonium clarum (Fombella, 1978) Sarjeant & Stancliffe, 1994 †
• Polygonium conjunctum (Kjellström, 1971) Sarjeant & Stancliffe, 1994 †
• Polygonium dedalinum (Fombella, 1978) Sarjeant & Stancliffe, 1994 †
• Polygonium delicatum Rasul, 1979 †
• Polygonium denticulatum (Tongiorgi in Bagnoli, Stouge & Tongiorgi, 1988) Sarjeant & Stancliffe, 1994 †
• Polygonium depressum L.-M. Yin, 1995 †
• Polygonium echinatus Ottone, Albanesi, Ortega & Holfeltz, 1999 †
• Polygonium geminum (Fombella Blanco, 1977) Sarjeant & Stancliffe, 1994 †
• Polygonium gracile Vavrdová, 1966 emend. Jacobson & Achab, 1985 emend. Sarjeant & Stancliffe, 1996 †
• Polygonium heurckii (Stockmans & Willière, 1962) Sarjeant & Srancliffe, 1994 †
• Polygonium kufferathii (Stockmans & Willière, 1962) Stancliffe & Sarjeant, 1996 †
• Polygonium latispinosum (Uutela & Tynni, 1991) Sarjeant & Stancliffe, 1994 †
• Polygonium makrosphaericum (Eisenack, 1970) Sarjeant & Stancliffe, 1994 †
• Polygonium martinae Moczydlowska & Crimes, 1995 †
• Polygonium minimum Timofeev, 1959 ex Volkova, 1990 †
• Polygonium multipustulosum (Kjellström, 1971) Sarjeant & Stancliffe, 1994 †
• Polygonium nanum (Deflandre, 1945 emend. Lister, 1970) Jacobson, 1978 †
• Polygonium parvum (Timofeev, 1959 ex Martin, 1972) Stancliffe & Sarjeant, 1996 †
• Polygonium pellicidum (Timofeev, 1959 ex Tynni, 1975) Volkova, 1990 emend. Moczydlowska & Stockfors, 2004 †
• Polygonium polyacanthum (Eisenack, 1965 ex Fensome et al., 1990) Sarjeant & Stancliffe, 1994 †
• Polygonium polygonale (Eisenack, 1931 ex Eisenack, 1938) emend. Le Hérissé, 1989 †
• Polygonium pungens (Timofeev, 1959 ex Martin, 1969) Albani, 1989 †
• Polygonium rasulii (Welsch, 1986) Sarjeant & Stancliffe, 1994 †
• Polygonium sedecimspinosum (Staplin, 1961) Stancliffe & Sarjeant, 1996 †
• Polygonium sexiradiatum (Timofeev, 1959) Volkova, 1990 †
• Polygonium spinosum S. Jardiné, A. Combaz, L. Magloire, G. Peniguel & G. Vachey †
• Polygonium stellapilosum (Martin, 1969) Eiserhardt, 1992 †
• Polygonium symbolum Rasul, 1979 emend. Sarjeant & Stancliffe, 1996 †
• Polygonium varium (Volkova, 1969) Sarjeant & Stancliffe, 1994 †
• Polygonium vespertinum Deunff, 1980 †
• Polygonium vulgare (Stockmans & Willière, 1962) Sarjeant & Stancliffe †
• Polygonium windolphiae (Welsch, 1986) Sarjeant & Stancliffe, 1994 †