Lady Bird Johnson Wildflower Center- Central Texas Native Plants- Special Collections: Texas-Central | NPIN (wildflower.org)
Lady Bird Johnson Wildflower Center and plant search function- Lady Bird Johnson Wildflower Center – The Botanic Garden of Texas
The Biota of North America Program: North American Vascular Flora- Home (bonap.org)
Austin Grow Green Native and Adapted Plant Guide- document.cfm (austintexas.gov)-  document.cfm (austintexas.gov)
Texas Nature Tracker and iNaturalist App- Title Layout (txmn.org)
Center for Environmental Studies and Department of Biology, Austin College, 1999
The Useful Wild Plants of Texas, The Southeastern and Southwestern United States, the Southern plains and Northern Mexico v.1 – v.4, Cheatham, Bell, and Marshall, 1995-2015 Out of print
The Useful Wild Plants of Texas Project- EARTHFIT (usefulwildplants.org)
Range Plants of North Central Texas, Linex, Natural Resources Conservation Service, 2014
Rare Plants of Texas, Poole, Price, Carr, and Singhurst, TAMU Nature Guides, 2008
Botany in a Day: The Patterns Method of Plant Identification, Elpel, Hops Press, 2013
Field Identification of 50 Plant Families- Microsoft PowerPoint – Struwe_50_major_plant_families 2014.pptx (sbbg.org)
Legends and Lore of Texas Wildflowers, Silverthorne, TAMU Press, 2002
Atlas of Vascular Plants of Texas Volume 1 Dicots, Turner, Botanical Research Institute of Texas, 2003 Out of Print
Atlas of Vascular Plants of Texas, Volume 2: Ferns, Gymnosperms, Monocots, Turner, Botanical Research Institute of Texas, 2003
Edwards Plateau Vegetation: Plant Ecological Studies in Central Texas, Amos and Gelbach, Baylor University Press, 1988
The Hill Country Nature Book for South-central Texas, Manes, Paradise Gardens Press, 2004 Out of Print, Revised Version coming
Plant Hardiness Zones- USDA
Texas Ecoregions- http://ecologicalregions.info/htm/pubs/TXeco_Jan08_v8_Cmprsd.pdf

Shinners & Mahlers’ Illustrated Flora of North Central Texas, Diggs, Diggs,

Vascular Plants of Texas: A Comprehensive Checklist Including Synonymy, Bibliography, and Index, Jones, Wipff, Montgomery, 2011

Remarkable Plants of Texas, Turner, University of Texas Press, 2009

Botany in a Day: The Patterns Method of Plant Identification, Elpel, Hops Press, 2013