St. Johnswort on range lands of California
By: Arthur W. Sampson and Kenneth W. Parker
Contributors: Parker, Kenneth W. (Kenneth William), 1904-
Series: Bulletin -- no. 503; Bulletin (California Agricultural Experiment Station) -- 503.
Publisher: Agricultural Experiment Station
Published: 1930
Place of publication: Berkeley, Cal
Language: eng
Number of pages: 48
Subjects: Livestock poisoning plants; Hypericum
Notes: Cover title.

Includes bibliographical references (p. 47-48).