A photograph I took of Eastern skunk cabbage appears on the cover of the Winter 2014 edition of The Conservationist.
Skunk cabbages are hot
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A photograph I took of Eastern skunk cabbage appears on the cover of the Winter 2014 edition of The Conservationist.
Photograph of Eastern skunk cabbage (Symplocarpus foetidus) covered with snow. I didn’t confirm with a thermometer, but these are famous for heating themselves up, maintaining 35 °C (95 °F) internal temperature even when outside air is below freezing. Heat helps volatilize the awful smell, which can be attractive to flies and beetles, but also creates a hot “room” inside the curved leaf (spathe) that surrounds the inflorescence on the spadix (hidden from view at this angle). But a more likely hypothesis of why this ability evolved is that thermoregulation protects pollen tube growth and female reproductive structures from frost damage. Either way, one of my favorite plants. Growing in the Crum Woods, Swarthmore, Pennsylvania.