Asplenium rhizophyllum one collection on sandstone in the Shawnee Hills of Illinois. A triploid hybrid between walking fern and Tutwiler's spleenwort was accidentally produced in culture. A similar plant collected from limestone in Shepherdstown, West Virginia could have originated from the same parents, from an unreduced (diploid) gametophyte of Scott's spleenwort crossed with walking fern, or from an unreduced walking fern gametophyte crossed with ebony spleenwort. In 1813, Henry Muhlenberg listed lobed spleenwort as "Asplenium rhizophyllum" var. "pinnatifidum", although he did not provide a description distinguishing the variety from the typical species. It was described as the species "A. pinnatifidum" by Thomas
It's Just a Plant It's Just a Plant It's Just a Plant is a children's book, written, illustrated and published by Ricardo Cortés. It is designed for parents who want to educate their children about marijuana. The book's pro-marijuana legalization message has drawn widespread attention from critics and the media since its publication in January 2005. The main character is a little girl named Jackie. She is awakened one night in her bedroom by an unusual smell in the air, and she sets out to find its source. She goes to her parents' room and discovers her parents smoking marijuana. When she asks what