OSU Journals (Oklahoma State University)
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A Walk Through the McLoud High School Oak-Hickory Forest with a Checklist of the Woody Plants
Get PDFThe McLoud High School oak-hickory forest is located a short distance from the McLoud High School campus. The forest has been used as an outdoor classroom for many years for high school students. This article will guide you through the forest trail and discuss several woody plants of interest at 16 landmarks. The article also includes a checklist of the 38 woody species identified in the forest
Cold Stratification of Salvia azurea var. grandiflora Benth. (Lamiaceae) seeds to Break Dormancy
Get PDFSeed dormancy and its maintenance rely on a range of environmental signals and cues such as light, temperature, soil pH, and moisture. A significant contributor to the cycle of dormancy and germination is temperature. Salvia azurea var. grandiflora Benth. is an Oklahoma native perennial that produces blue flowers with one seed per flower. Seeds were collected from four sites in Oklahoma and Cleveland Counties, OK, and randomly assigned to one of three treatment groups: no cold stratification, 3-week cold stratification, and 6-week cold stratification. Seeds were monitored daily, and seed germination date was recorded for analysis. Survival analysis indicated there was a significant correlation between the amount of time in a cold stratification environment and number of seeds that germinated. Seeds in the 6-week cold stratification treatment group exhibited increased germination compared to the other two treatment groups
Assessment of Oklahoma Phlox (Phlox oklahomensis: Polemoniaceae) in the Gypsum Hills of Northwestern Oklahoma and Southern Kansas
Get PDFPhlox oklahomensis Wherry, Oklahoma phlox, occurs within the tall grass prairie of the southern Flint Hills of Kansas, and other populations occur within the southern mixed grass prairie of the Gypsum Hills of northwestern Oklahoma and southern Kansas. The first census of Oklahoma phlox in northwestern Oklahoma and southern Kansas was conducted over a three-year period (1980-1982). The second and third censuses occurred approximately 20 years after the first census, in 2002 and 2003. Since the 1980s two major wildfires and several droughts have occurred throughout its distribution range. The goals of this research were to compare the 1980-1982 census and the 2002 and 2003 censuses of Oklahoma phlox to censuses conducted in 2020 and 2021 and assess the current status of the species. In addition, we used a geographic information system (GIS) to identify factors that influence the likelihood of finding Oklahoma phlox in the region. The final census found that the occurrence of Oklahoma phlox has not changed significantly over the last 40 years. Populations thrive in areas where the fire interval is >5 years, and it commonly occurs on the upper elevations of the landscape on hilltops and/or ridges where the slope is > 7%. Although plants were observed on all landscape exposures, populations occur more frequently on west and northwest facing slopes. The authors recommend an S3 ranking for Oklahoma phlox
Literature Review of Dendrochronology Research in Oklahoma, U.S.A.
Get PDFDendrochronology, the study of tree-rings to help understand events of the past, is a growing body of research that has become well-established in scientific literature within the last century. Oklahoma is a distinct resource to dendrochronology as it exists at the eastern deciduous forests and western prairies/grasslands transition. The extent of dendrochronological research conducted in Oklahoma has not yet been determined. A literature review was performed to catalogue and quantify dendrochronological research for Oklahoma. Thirty-seven written works were identified ranging through years 1923 to 2018. Nine research topics were developed to aid publication synthesis, with climate reconstruction, fire history, and stand dynamics being the most frequently encountered topics. Reviewed publications indicated that humans and climate, specifically drought, largely impacted Oklahoma forests historically, and remain a current threat. Results provide a detailed resource of dendrochronological applications within Oklahoma that spans the past century. Presented literature can be referenced for future Oklahoma dendrochronology studies, with presented knowledge also benefiting studies of similar forest types elsewhere
Note: Pawnee Native Sumac/Tobacco Resurgence
Get PDFResearch of historical tobacco changes and continuation in current practices has led to recommendations after thoughtful consideration by the Pawnee Nation Agricultural Committee and the Chiefs' Council. Preparation of a native tobacco mixture taught to the author by Boy Chief is explained. Traditionalists recently allowed the use of a native tobacco/native smooth sumac mixture in tribal ceremonies. Because native tobacco is additive-free and has a lower nicotine content, this mixture is considered healthier than commercially marketed tobacco for use in ceremonies
