Escobaria sneedii var. leei
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Roth, D. 2017. FWS Section 6, Segment 31 Report for Knowlton's cactus (Pediocactus knowltonii), Holy Ghost Ipomopsis (Ipomopsis sancti-spiritus), Pecos Sunflower (Helianthus paradoxus), Lee's Pincushion Cactus (Escobaria sneedii var. leei), Swale Paintbur
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Sharpe, M. (1997) Inventory Completion Report, Sensitive Plnt Survey, Lincoln National Forest, Field Notes. Guadalupe R.D. Lee's Survey- Wilderness Ridge. Guadalupe RD, Lincoln NF, USFS. 2 p.
Gulf South Research Corporation. 2012. Sneed's Pincushion Cactus (Escrobaria sneedii var. sneedii) genetics study. Annual report to U.S. Fish and Wildlife Service, Section 10 TE-64595A. 46p.
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