Ambrosia trifida
- Negative number
- 00812
- Lantern slide number
- 00870
- Locality
- Spring Valley, NY
- Date
- 07/19/1912
- Historical Name
- Ambrosia trifida
- Current Name
- Ambrosia trifida
- Common Name
- Great ragweed
- Photograph by
- E.M. Kittredge
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