Peltandra undulata.pennisetum. pennyroyal.pentstemon. peony.peppermint. pepperidge. pepper, red. perennials, cultivation of.    From Wordnik.com.  [Manual of Gardening (Second Edition)] Reference

Over the summer we've occasionally waded across the creek to the far bank to visit a quaking bog full of buttonbush (Cephalanthus occidentalis) and arrow arum (Peltandra virginica).    From Wordnik.com.  [www.philadelphiaweekly.com Philadelphia Weekly] Reference

Arum, Arrow Peltandra virginica 105, 116, 129.    From Wordnik.com.  [The Field Guide to Wildlife Habitats of the Eastern United States] Reference