The annual species of stinging nettle (Hesperocnide and Urtica) in North America
Woodland, D.W., Bassett, I.J., Crompton, C.W.Volume:
54
Year:
1976
Language:
english
Journal:
Botany
DOI:
10.1139/b76-034
File:
PDF, 639 KB
english, 1976