by Crow G.E, Hellquist C.B
Published in Bulletin - New Hampshire. Agricultural Experiment Station (USA). no. 517 (1981)

by Hellquist, C.B
Published in Rhodora (1972)

by Hellquist, C.B
Published in Rhodora (1971)

by Crow, G.E, Hellquist, C.B
Published in Bulletin - New Hampshire, Agricultural Experiment Station (USA) (01.06.1983)

by Haynes R.R, Hellquist C.B
Published in Michigan botanist (1978)

by Wiersema, J.H. (USDA, ARS, Beltsville, MD.), Hellquist, C.B
Published in Rhodora (01.04.1994)

by Hellquist C.B
Published in Rhodora (01.01.1980)

by Crow, G.E, Hellquist, C.B
Published in Bulletin - New Hampshire, Agricultural Experiment Station (USA) (01.01.1982)

by Colt, L.C. Jr, Hellquist, C.B
Published in Rhodora (1974)

by Hellquist C.B
Published in Rhodora (01.01.1981)

by Hellquist C.B
Published in Rhodora (1984)

by Hellquist C.B, Hilton R.L
Published in Systematic botany (1983)

by Colt, L.C, Hellquist, C.B, Zubrin, W.J.L
Published in Rhodora (1971)

by Hellquist, C.B, Philbrick, C.T, Hilton, R.L
Published in Rhodora (01.01.1988)

by Hellquist, C.B, Crow, G.E
Published in Bulletin - New Hampshire Agricultural Experiment Station (USA) (01.03.1984)

by Crow G.E, Countryman W.D, Church G.L, Eastman L.M, Hellquist C.B, Mehrhoff L.L, Storks I.M
Published in Rhodora (01.01.1981)