Tricky trichomes

Epiphytic plants need to find a way to compensate for what they do not have -- roots that draw nutrients from the soil. Bromeliads like the green wild pine (Tillandsia utriculata) pictured above with vase-shaped shoots -- or "tanks" --…

Wonderous whisk fern

Ken Gonyo (Class of 2012) shared this photo of whisk fern (Psilotum nudum) growing at the Oslo Riverfront Conservation Area, which was spotted by Susan Warmer (Class of 2006) on a Wednesday work day. Whisk fern is a very primitive…