Sclerocactus cloveriae ssp. Brackii
Adkins Consulting, Inc. 2013. Biological survey report for the proposed Martin Gas Com F #1H natural gas well and well-tie pipeline, XTO Energy, Inc. Submitted to BLM Farmington Field Office. 20 p.
Adkins Consulting, Inc. 2013. Biological survey report for the proposed Caballo 30-15-29 #1H oil and gas well project, SG Interests I, Ltd. Submitted to BLM Farmington Field Office. 20 p.
Zabka, Matt. 2011. Biological Survey Report For the Proposed Pioneer Lateral No.1 Pigging System Upgrades Adkins Consulting Inc. Environmental Permitting Services, Farmington-Durango
SME Environmental Consultants. 2011. Biological survey report for Burlington Resources Oil & Gas Company, LP proposed Kessler Com 3P natural gas well and pipeline project. Submitted to BLM Farmington Field Office. 21 p.
SME Environmental Consultants. 2011. Biological survey report for Burlington Resources Oil & Gas Company, LP proposed Davis A Federal 1P natural gas well and pipeline project. Submitted to BLM Farmington Field Office. 18 p.
Porter, J.M. and L.M. Prince. 2011. Report on the evidence supporting generic and species circumscriptions in the genus Sclerocactus with recommendations for a biologically justified taxonomy that will be stable into the future; and biological assessments
Creeden, E. 2015. GIS shapefiles of Brack's cactus locations detected during clearance surveys. SWCA Environmental Consultants.
Ecosphere Environmental Services, Inc. 2011. Biological survey report: William Four Corners, LLC proposed Lateral R-5 pipeline lowering project. Submitted to BLM Farmington Field Office. 14 p.
URS Corporation. 2010. Biological survey report for Verizon Wireless NM1 Refinery, San Juan County. Submitted to BLM Farmington Field Office. 18 p.
Adkins Consulting, Inc. 2010. Biological survey report for the proposed San Juan 24P well pad and well-tie pipeline, Burlington Resources Oil & Gas Company. Submitted to BLM Farmington Field Office. 15 p.