Spruce of the Deserts and Mountains of the American Southwest

The Genus Picea

Engelmann Spruce: Picea engelmannii (Synonyms: Picea engelmannii var. engelmannii, Picea engelmannii var. glabra, Picea engelmannii ssp. engelmannii)

Blue Spruce, Colorado Blue Spruce: Picea pungens (Synonym: Picea parryana)