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Collin County Chapter

A Beginner’s Guide to Identifying Native North Texas Plants

Upon starting your journey into native Texas plants, one of the challenges most of us face is determining the name of a possible native plant and whether it is native to North Texas. Many non-native / exotic plants can easily be mistaken for natives, and there can be confusion over plants native to North America or other regions of Texas, but not North Texas.

Having “go-to” sources to help determine if a plant you are interested in buying or that you see in a local park is a native plant is crucial to building your knowledge base. Below, we have provided a guide for beginners on sources and activities to help identify native North Texas plants.

Books

There are many excellent books available that can offer high-level to detailed information on our local native fauna. Some favorites from our chapter’s membership include:

  • Shinners & Mahler’s Illustrated Flora of North Central Texas by George Diggs, Barney Lipscomb, and Robert O’Kennon, is considered by many as the authority on the subject. This comprehensive guide has over 2,200 species and is helpful for beginners to experts. It is available for purchase in print and is free online.
  • Native Texas Plants: Landscaping Region by Region by Sally and Andy Wasowski is another book considered essential by many Texas native plant enthusiasts. This book focuses on landscaping ideas with native Texas plants in the many regions of Texas and provides suggestions of native plants and how to use them in your garden.

The Native Plant Society of Texas (NPSOT) website has an online bookstore with a wide variety of books suggested by chapters from across the state. 

Illustration Courtesy of Fort Worth Botanic Garden

Online Native Plant Databases and Apps:

If you prefer to consume information digitally, there are also many resources you can tap into on Native Texas plants.

  • A website that covers North America but is based in Austin is the Lady Bird Johnson Wildflower Center’s online native plant database. The center’s website has the most comprehensive guide to native plants, with a free, searchable database of over 25,000 native plants from across North America. Plus, it has specialized collections focused on native plants of North Central Texas and the Blackland Prairies. For many, it is an indispensable resource for learning about native plants of North Texas.
  • Another excellent source is the NPSOT Native Plant Database. Unlike the Wildflower Center, the NPSOT site focuses only on native plants best suited to Texas ecoregions. For those new to native plants, the site’s curated listing is often more helpful than navigating all of North America’s native plants.
  • The iNaturalist app is a valuable tool for identifying native plants in the “wild” or volunteer plants in your yard. Using your phone’s camera, take a picture of the plant in question – the app will then provide suggestions on the plant’s name. It also includes more information on the plant, such as native range, so you can determine if it is a native or non-native plant.

There are many more helpful sites available for identifying native plants. The following are two meta-pages with listings of other suggested websites:

Classes, Workshops, and Groups:

For more hands-on learning, there are various opportunities available to learn in a classroom-type setting, either in-person or online. Sources include:

  • NPSOT Native Landscape Certification Program – Offers a series of day-long classes that teach best practices for native plant landscaping. Classes are available at locations around the state, plus via Zoom. 
  • Texas Master Naturalist Program – The Program aims to develop well-informed volunteers who will provide education, outreach, and service for the beneficial management of natural resources within our communities. Some of the program’s tenets include local knowledge, continuous learning, and networking.
  • Native Prairies Association of Texas – Our friends at NPAT provide numerous opportunities to learn about Texas’ prairies through a variety of activities.

These classes also provide the benefit of sharing with others and learning from their experiences. Joining groups such as NPSOT, Master Naturalists, NPAT, and other organizations allows you to learn firsthand about our native plants through meetings, activities, and workdays. Lastly, another great way to learn about and aid your identification of native plants is experiencing them first-hand in native gardens, such as the Heard Museum & Wildlife Sanctuary in McKinney, Texas Discovery Gardens in Dallas, and the Lady Bird Johnson Wildflower Center in Austin, among many others.

Being able to easily and accurately identify native North Texas plants will enhance your enjoyment of our area’s natural beauty and biodiversity, and your appreciation of our region’s native plants.

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About the Region

New Braunfels, the location of our Fall 2024 Symposium, straddles both the Edwards Plateau Ecoregion and the Blackland Prairie ecoregion. Interstate 35 divides the city of New Braunfels; its path through the city closely parallels the boundary of these two ecoregions, with the Edwards Plateau on the west side and the Blackland Prairies region to the east. The Edwards Plateau area is also called the Hill Country; however, this general term covers a much larger area extending farther north. Spring-fed creeks are found throughout the region; deep limestone canyons, rivers, and lakes (reservoirs) are common. Ashe juniper is perhaps the most common woody species found throughout the region. Additional woody species include various species of oak, with live oak (Quercus fusiformis) being the most common. Sycamores (Platanus occidentalis) and bald cypress (Taxodium distichum) border waterways. This area is well known for its spring wildflower displays, though they may be viewed in spring, late summer, and fall, as well. According to Texas Parks and Wildlife, average annual rainfall in the Edwards Plateau ranges from 15 to 34 inches.

The Blackland Prairie extends from the Red River south to San Antonio, bordered on the west by the Edwards Plateau and the Cross Timbers, and on the east by the Post Oak Savannah. Annual rainfall averages 30 to 40 inches, with higher averages to the east. This region is dominated by prairie species. The most common grass species include little bluestem (Schizachyrium scoparium) and Indian grass (Sorghastrum nutans) in the uplands and switchgrass (Panicum virgatum) in the riparian areas and drainages. Common herbaceous flowering plants include salvias, penstemons, and silphiums. This area has suffered greatly from overgrazing and agricultural use. Few intact areas remain, though many of the plants can be found along county roadsides throughout the region.

Our four host chapters (New Braunfels, Lindheimer, Guadalupe, and the Hill Country chapters) are located in one or both of the ecoregions above. However, the eastern portion of Guadalupe County also falls within the Post Oak Savanna ecoregion. Annual rainfall averages 35 to 45 inches, with higher averages to the east. A wide variety of hardwood trees are found, including several species of oaks, elms, and in the Bastrop area, loblolly pine (Pinus taeda). Grasses and forbs dominate in the open savannas, with most common grass being little bluestem. Ranching, agriculture, and fire suppression have allowed woody species to encroach on the once-open savannas.

Source: Wildflowers of Texas by Michael Eason