St. John's-Worts of Canada (Guttiferae)
By: John M. Gillett and Norman K.B. Robson.
Contributors: Robson, N. K. B.
Series: Publications in botany,; no. 11; Publications in botany (Ottawa, Ont.) ;; no. 11.
Publisher: National Museums of Canada, National Museum of Natural Sciences
Published: 1981
Place of publication: Ottawa
Language: eng
Number of pages: 40
Subjects: Hypericum -- Canada -- Classification.; Triadenum.; Triadenum virginicum.; Phytogeography -- Canada -- Maps.
Genres: Classification.; Maps.
Notes: Bibliography: p. 35-36.
Summary in French.