2021 Oklahoma Native Plant Record 1 Oklahoma Native Plant R ecord Journal of the Okla hom a Native Plant Society P. O. Box 14274 Tulsa, Oklahoma 74159-1274 Volume 21, December 2021 ISSN 1536-7738 http://ojs.library.okstate.edu/osu/ Editor: Gloria Caddell Production Editor: Sandy Graue Electronic Production Editor: Sandy Graue Manuscript Editor: Gloria Caddell Technical Advisor: Erica Corbett 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. Officers and Board Members President: Patrick Bell Vice-President: Shalini Chitturi Secretary: Debbie Drinko Treasurer: Mary Korthase Past President: Bill Farris Directors at Large: Kathy Doss Jim Elder Joe Roberts Ric Brown Dennis Martin Constance Murray Chapter Chairs: Central: Micah Friedman Northeast: Kathy Doss Mycology: Nancy Hamill Committee Chairs: Historian: Fran Stallings Publicity/Merchandise: Barbara Klein Betty Kemm Award: Sue Amstutz Awards: Constance Murray Membership Database Ed.: Sandy Graue Mailings/Printings: Sandy Graue Gaillardia Editor: Lynn Michael Color Oklahoma: Pearl Garrison Webmaster: Adam Ryburn Web Editors: Joe Roberts, Sandy Graue http://www.oknativeplants.org 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.22.100000 http://ojs.library.okstate.edu/osu/ http://www.oknativeplants.org/ https://webmail.suddenlink.net/do/redirect?url=https%253A%252F%252Fcreativecommons.org%252Flicenses%252F&hmac=c55f81a2d88a183f74295dc18f7bbb4a https://doi.org/10.22488/okstate.22.100000 2 Oklahoma Native Plant Record Volume 21, December 2021 Oklahoma Native Plant Record Volum e 21 Ta ble of Contents Foreword .................................................................................................................................................... 3 Growth Patterns and Ages of Trees from Martin Park Nature Center, Oklahoma County, Oklahoma ................................................................................................................................................... 4 Chad B. King Measuring Changes in Phenology of Oklahoma Asteraceae Using Herbarium Specimens ......... 12 John A. Unterschuetz, Jennifer A. Messick, and Abigail J. Moore Literature Review of Dendrochronology Research in Oklahoma, U.S.A. ...................................... 34 Carmen L. Esqueda and Chad B. King Cold Stratification of Salvia azurea var. grandiflora Benth. (Lamiaceae) Seeds to Break Dormancy ...................................................................................................................... 53 Samantha Coplen Critic's Choice Essay: Musings at Dusk .................................................................................................... 62 Paul Buck† Editorial Policies and Procedures ......................................................................................................... 64 Five Year Index to Oklahoma Native Plant Record ............................................... inside back cover † Indicates an author who is deceased Cover photo: Eryngium leavenworthii (Leavenworth’s eryngo) 2004 Photo Contest entry by Ellen Jonsson