TY  - RPRT
TI  - Arizona hedgehog cactus (Echinocereus triglochidiatus var. arizonicus)—A systematic data assessment in support of recovery
AU  - Kathryn A. Thomas
AU  - Daniel F. Shryock
AU  - Todd Esque
PY  - 2019
DO  - 10.3133/ofr20191004
UR  - https://pubs.usgs.gov/publication/ofr20191004
ID  - ofr20191004
ER  -