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Gonolobus arizonicus
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Asterids
Order:	Gentianales
Family:	Apocynaceae
Genus:	Gonolobus
Species:	G. arizonicus
Binomial name
Gonolobus arizonicus (A.Gray) Woodson
Synonyms
Lachnostoma arizonicum A.Gray Matelea arizonica (A.Gray) Shinners

Gonolobus arizonicus, common name Arizona milkvine, is a species of plant in the family Apocynaceae. It is endemic to Arizona, found in Pima, Santa Cruz, Pinal, and Graham Counties.

References

1. Tropicos
2. Altervista Flora of North America, Matelea arizonica (A. Gray) Shinners, Arizona milkvine
3. Krings, Alexander. 2008. Synopsis of Gonolobus s.l. (Apocyanceae, Asclepiadoideae) in the United States and its territories, including lectotypification of Lachnostoma arizonicum. Harvard Papers in Botany 13(2): 210.
4. Gray, Asa. 1885. Proceedings of the American Academy of Arts and Sciences 20: 296
5. Biota of North America Program, 21013 county distribution map, Matelea arizonica

External links

• photo of herbarium specimen at Missouri Botanical Garden, isolectotype of Lachnostoma arizonicum, collected in Santa Catalina Mountains of Pima County, Arizona

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