It is available from Mayapple Records. The preserve has woodland, open pastures, wetlands, and Mayapple Brook valley. Epipodophyllotoxins are substances naturally occurring in the root of American Mayapple plant ("Podophyllum peltatum"). The entrance to the Gregg Preserve is located at the cul-de-sac of Mayapple Road. Spring and summer wild flowers include trillium, mayapple, and jack-in-the-pulpit. In November 2009, "The Night's Dark Shade" was published by Mayapple Books. Significant flora includes mayapple, bluets, wild lupine, cardinal flower, and pinxter flower. Mayapple ("Podophyllum peltatum") is a common herbaceous plant. Mayapple publishes poetry, fiction, and creative non-fiction. Mayapple has been used by American Indians as an emetic, cathartic, and antihelmintic agent.