
These four castor bean plants (Ricinus communis) are next to the west entrance of Stewart Center on the Purdue campus. Pictures taken July 10, 2009.

Link to Ricinus communis:
Link to Ricinus communis:

The yellow flowered plants surrounding the Ricinus are sneezeweed, Helenium amarum.
Link to sneezeweed at Purdue Hort Gardens:
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