2018 Handouts – Ecological Plant Conference The following session handouts have been provided for the Ecological Plant Conference. Note that not all speakers will be supplying handouts. Check back soon for additional handouts. Donald J. Leopold: Native Plants and Natural Plant Communities for Difficult Sites Laura Hansplant Pioneering Higher Ground-Rooftop Habitats Carol Gracie Native Summer Plants Andi Pettis Tenacious High Line Plants