Phyllanthus warnockii
{{Short description|Species of flowering plant}}
{{speciesbox
|genus = Phyllanthus
|species = warnockii
|authority = G.L.Webster
|synonyms =
- Reverchonia arenaria A.Gray
|synonyms_ref = {{citation
|url=http://www.theplantlist.org/tpl1.1/record/kew-373795
|title=The Plant List: A Working List of All Plant Species
|accessdate=20 October 2015}}
}}
Phyllanthus warnockii, the sand reverchonia,{{PLANTS|id=REAR|taxon=Reverchonia arenaria|accessdate=20 October 2015}} is a plant species of the family Phyllanthaceae. It is a sand dune annual and confined to the Southwestern United States and adjacent Mexico.{{citation needed|date=October 2012}} It is poisonous to mammals.{{GRIN | accessdate = 25 January 2018}} Members of the Hopi Tribe in northeastern Arizona sometimes traditionally used the berries to oil and season piki cooking slabs.{{Cite book|title=Ethnobotany of the Hopi|last=Whiting|first=Alfred|publisher=Museum of Northern Arizona|year=1939|isbn=|location=Flagstaff|pages=15, 36, 84}} It was also used by the Hopi medicinally in cases of postpartum hemorrhage.{{Cite book|title=The Oraibi Natal Customs and Ceremonies|last=Voth|first=H.R.|publisher=Field Columbian Museum, Anthropological Series Vol.6 No. 2|year=1905|isbn=|location=Chicago|pages=51}}