Oklahoma Native Plant Record, Volume 11, Number 1, December 2011 1 Oklahoma N ative Plant Record Journal of the Oklahoma Native Plant Society 2435 South Peoria Tulsa, Okla homa 74114 Volume 11, December 2011 ISSN 1536-7738 http://ojs.library.okstate.edu/osu/ Managing Editor: Sheila Strawn Production Editor: Paula Shryock Electronic Production Editor: Sandy Graue Technical Advisor: Bruce Hoagland Editorial Assistants: Patricia Folley, Kristi Rice The purpose of ONPS is to encourage the study, protection, propagation, appreciation and use of the native plants of Oklahoma. Membership in ONPS is open to any person who supports the aims of the Society. ONPS offers individual, student, family, and life memberships. 2011 Officers and Board Members President: Lynn Michael Vice-President: Marilyn Stewart Secretary: Sandy Graue Treasurer: Mary Korthase Membership Coordinator: Tina Julich Historian: Sharon McCain Past President: Kim Shannon Board Members: Clare Miller Buddy Miller Marilyn Stewart Ron Tyrl Brooke Bonner Janette Steets Central Chapter Chair: Joe Roberts Cross-Timbers Chapter Chair: Ron Tyrl Mycology Chapter Chair: Steve Marek Northeast Chapter Chair: Alicia Nelson Color Oklahoma Chair: Tina Julich Conservation Chair: Chadwick Cox Gaillardia Editor: Chadwick Cox Website Manager: Chadwick Cox http://projects.usao.edu/~onps/index.html Harriet Barclay Award Chair: Rahmona Thompson Anne Long Award Chair: Gloria Caddell ONPS Service Award Chair: Sue Amstutz Photo Poster Curators: Sue Amstutz & Marilyn Stewart Photography Contest Chair: Kim Shannon Nominations Chair: Sheila Strawn Librarian: Karen Haworth Mailings Chair: Karen Haworth Publicity Chairs: Kim Shannon & Marilyn Stewart Wildflower Workshop Chair: Lynn Michael Cover photo by Carolyn Lilly “Fritillary and Thistle”, 1st place Photo Contest Winner, Special Category: Flora and Fauna, 2011. Articles (c) The Authors Journal compilation (c) Oklahoma Native Plant Society Except where otherwise noted, this work is licensed under a Creative Commons Attribution- NonCommercial-ShareAlike4.0 International License, https://creativecommons.org/licenses/by-nc- sa/4.0/, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly attributed, not used for commercial purposes, and, if transformed, the resulting work is redistributed under the same or similar license to this one. https://doi.org/10.22488/okstate.17.100079 http://ojs.library.okstate.edu/osu/� http://projects.usao.edu/~onps/index.html� Oklahoma Native Plant Record Volume 11, December 2011 2 Oklahoma Native Plant Record Volume 11 Table of Contents Foreword ................................................................................................................................................. 3 Survey of the Vascular Flora of the Boehler Seeps and Sandhills Preserve, Ph.D. dissertation ................................................................................... 4 Dr. Linda Gatti Clark Schoenoplectus hallii, S. saximontanus, and the Putative S. hallii ×S. saximontanus Hybrid: Observations from the Wichita Mountains Wildlife Refuge and the Fort Sill Military Reservation 2002 – 2010 .......................................................... 22 Dr. Marian Smith and Dr. Paul M. McKenzie Spatial Genetic Structure of the Tallgrass Prairie Grass Dichanthelium oligosanthes (Scribner’s panicum) ........................................................................................... 33 Ms. Molly J. Parkhurst, Dr. Andrew Doust, Dr. Margarita Mauro-Herrera, Dr. Janette A. Steets, and Dr. Jeffrey M. Byrnes The Effects of Removal of Juniperus virginiana L. Trees and Litter from a Central Oklahoma Grassland .............................................................................................. 43 Mr. Jerad S. Linneman, Dr. Matthew S. Allen, and Dr. Michael W. Palmer The Changing Forests of Central Oklahoma: A Look at the Composition of the Cross Timbers Prior to Euro-American Settlement, in the 1950s, and Today ....................................................................................................... 61 Dr. Richard E. Thomas and Dr. Bruce W. Hoagland Critic’s Choice Essay: Some Thoughts on Oklahoma Plants and Summer 2011’s Exceptional Drought ............................................................................................................ 75 Leslie E. Cole, D.V.M. Editorial Policies and Procedures ..................................................................................................... 77 Five Year Index to Oklahoma Native Plant Record ........................................... inside back cover Oklahoma Native Plant Record, Journal of the Oklahoma Native Plant Society, Volume 11, December 2011 Title Page Table of Contents Foreword