THE BIOLOGY OF CANADIAN WEEDS: 23. Rhus radicans L.

Poison ivy (Rhus radicans L.) occurs in repeatedly disturbed habitats in every province except Newfoundland. Three varieties are recognized in Canada: var. radicans, var. rydbergii (Small ex Rydberg) Rehder, and var. negundo (Greene) G. A. Mulligan. Variety rydbergii is the most common and widesprea...

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Bibliographic Details
Published in:Canadian Journal of Plant Science
Main Authors: MULLIGAN, GERALD A., JUNKINS, BONNY E.
Format: Article in Journal/Newspaper
Language:English
Published: Canadian Science Publishing 1977
Subjects:
Horticulture
Plant Science
Agronomy and Crop Science
Canada
Greene
Newfoundland
Online Access:http://dx.doi.org/10.4141/cjps77-075
http://www.nrcresearchpress.com/doi/pdf/10.4141/cjps77-075
Description
Summary:Poison ivy (Rhus radicans L.) occurs in repeatedly disturbed habitats in every province except Newfoundland. Three varieties are recognized in Canada: var. radicans, var. rydbergii (Small ex Rydberg) Rehder, and var. negundo (Greene) G. A. Mulligan. Variety rydbergii is the most common and widespread. The biology of poison ivy and the dermatitis it causes in humans is discussed.

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