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Classification System: APG IV

Superregnum: Eukaryota
Regnum: Plantae
Cladus: Angiosperms
Cladus: Eudicots
Cladus: Core eudicots
Ordo: Caryophyllales
Familia: Achatocarpaceae
Genus: Phaulothamnus
Species: P. spinescens
Source(s) of checklist:

Govaerts, R. et al. 2020. Phaulothamnus in Kew Science Plants of the World online. The Board of Trustees of the Royal Botanic Gardens, Kew. Published on the internet. Accessed: 2020 Nov 20. Reference page.


Phaulothamnus A.Gray Proc. Amer. Acad. Arts 20: 293. (1885)

monotypic taxon


Gray, A., Proceedings of the American Academy of Arts and Sciences. Boston, MA 20: 293.
Hassler, M. 2017. Phaulothamnus. World Plants: Synonymic Checklists of the Vascular Plants of the World In: Roskovh, Y., Abucay, L., Orrell, T., Nicolson, D., Bailly, N., Kirk, P., Bourgoin, T., DeWalt, R.E., Decock, W., De Wever, A., Nieukerken, E. van, Zarucchi, J. & Penev, L., eds. 2017. Species 2000 & ITIS Catalogue of Life. Published on the internet. Accessed: 2017 May 17. Reference page.
International Plant Names Index. 2017. Phaulothamnus. Published online. Accessed: May 17 2017.
Global Biodiversity Information Facility. 2019. GBIF Backbone Taxonomy. Checklist dataset. Taxon: Phaulothamnus. .

Phaulothamnus is a genus of plants formerly included in the family Phytolaccaceae but now considered a part of the Achatocarpaceae.[1][2]

Only one species is recognized:[3] Phaulothamnus spinescens A. Gray, native to Texas, Tamaulipas, Nuevo León, Sonora and Baja California.[4] This is a branching shrub with juicy berries.[5] Common names includes devilqueen,[6] snake-eyes or putia.

Phaulothamnus spinescens is a branching shrub up to 250 cm tall, with spines along the branches. Leaves are broader than wide, up to 35 mm wide but rarely more than 12 mm long. Flowers are borne one at a time or in racemes. Fruits are spherical, juicy, white to greenish with the black seeds visible through the thin fruit wall.[4][7][8][9][10]

Brown, G. K. and G. S. Varadarajan. 1985. Studies in Caryophyllales I: Re-evaluation of classification of Phytolaccaceae s.l. Syst. Bot. 10: 49–63.
Nowicke, J. W. and J. J. Skvarla. 1982. Pollen fine structure and relationships of Achatocarpus Triana and Phaulothamnus A. Gray. Taxon 31: 244–249.
The Plant List, Phaulothamnus spinescens
Flora of North America v 4 p 13, Phaulothamnus spinescens.
Flora of North America vol 4, p 13, Phaulothamnus spinescens
"Phaulothamnus spinescens". Natural Resources Conservation Service PLANTS Database. USDA. Retrieved 24 September 2015.
Asa Gray. 1885. Proceedings of the American Academy of Arts and Sciences 20: 294.
CONABIO. 2009. Catálogo taxonómico de especies de México. 1. In Capital Nat. México. CONABIO, Mexico City.
Correll, D. S. & M. C. Johnston. 1970. Manual of the Vascular Plants of Texas i–xv, 1–1881. The University of Texas at Dallas, Richardson.
Shreve, F. & I. L. Wiggins. 1964. Vegetation and Flora of the Sonoran Desert 2 vols. Stanford University Press, Stanford.

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