Arceuthobium microcarpum

Arceuthobium microcarpum, called the "western spruce dwarf mistletoe," is a parasitic plant known only from Arizona and New Mexico. It is found mostly on spruce trees (Picea spp.) but also occasionally on Rocky Mountain bristlecone pine (Pinus aristata Engelm.). The specific epithet "microcarpum" means "small fruited," in reference to the berries, which are only 3.5 mm long.^[1]

Arceuthobium microcarpum
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Order:	Santalales
Family:	Santalaceae
Genus:	Arceuthobium
Species:	A. microcarpum
Binomial name
Arceuthobium microcarpum (Engelm.) Hawksw. & Wiens
Synonyms
Arceuthobium douglasii var. microcarpum Engelm. in Rothr. Arceuthobium campylopodum subsp. microcarpum (Engelm.) Nickrent Razoumofskya microcarpa (Engelm.) Wooton & Standl.

Arceuthobium microcarpum (Engelm.) Hawksw. & Wiens, Brittonia 22(3): 268. 1970.^[2] = Arceuthobium douglasii var. microcarpum Engelm. in Rothr., Rep. U.S. Geogr. Surv., Wheeler vol. 6, Botany 253. 1879.^[3] = Arceuthobium campylopodum subsp. microcarpum (Engelm.) Nickrent, Phytoneuron 2012–51: 10. 2012.^[4] = Razoumofskya microcarpa (Engelm.) Wooton & Standl., Contr. U.S. Natl. Herb. 19: 179. 1915.^[5]