Rydberg, Per Axel, 1860–1931
Nationality: Undetermined, possibly 
(United States)
Identities and Authority Control
- Open Library: OL159148A
- pdbooks.info ID: 74026
Per Axel Rydberg Contributed to the Following:
| Title | Edition | Year of Publication | Role | Country of Publication | Possible Copyright Status | Available Online? | |||
|---|---|---|---|---|---|---|---|---|---|
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| Flora of the prairies and plains of central North America | 1932 | Author | |  | |  | | ||
| Flora of the Rocky Mountains and adjacent plains, Colorado, Utah, Wyoming, Idaho, Montana, Saskatchewan, Alberta, and neighboring parts of Nebraska, South Dakota, and British Columbia | 1917 | Author | | | | | |    
| |
| Flora of the southeastern United States | 2d ed. | 1913 | Author | | | | | |
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| Key to the Rocky Mountain flora: Colorado, Utah, Wyoming, Idaho, Montana, Saskatchewan, Alberta, and parts of Nebraska, South Dakota, North Dakota, and British Columbia | 1919 | Author | | | | | |
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