# Endangered and Threatened Wildlife and Plants; Designation of Critical Habitat for the Acuña Cactus and the Fickeisen Plains Cactus
> **US Fish and Wildlife Service** · Final rule. · Published 2016-08-18 · Effective 2016-09-19 · 81 FR 55266
## Document
- **Document number:** 2016-19159
- **Category:** endangered-species
- **Sub-agency:** US Fish and Wildlife Service
- **Federal Register citation:** 81 FR 55266
- **CFR reference:** 50 CFR 17
- **Publication date:** 2016-08-18
- **Effective date:** 2016-09-19
- **Interior docket:** Docket No. FWS-R2-ES-2013-0025
## Abstract

We, the U.S. Fish and Wildlife Service (Service), designate critical habitat for the Echinomastus erectocentrus var. acunensis (acu[ntilde]a cactus) and the Pediocactus peeblesianus var. fickeiseniae (Fickeisen plains cactus) under the Endangered Species Act. Critical habitat for the acu[ntilde]a cactus is located in Maricopa, Pima, and Pinal Counties, Arizona, and critical habitat for the Fickeisen plains cactus is located in Coconino and Mohave Counties, Arizona. The effect of this regulation is to designate critical habitat for the acu[ntilde]a cactus and the Fickeisen plains cactus under the Endangered Species Act.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2016/08/18/2016-19159/endangered-and-threatened-wildlife-and-plants-designation-of-critical-habitat-for-the-acua-cactus)
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