Pinus pseudostrobus, known in English as the smooth-bark Mexican pine and in Spanish as chamite or pacingo, is a tree found in forests of Mexico and Central America.[1][2][6] ^{[citation needed]} It is 8 to 25 m tall with a dense and round top.^{[citation needed]}It is threatened by logging and wood harvesting.[1] The bark is brown and fissured and smooth when young. ^{[citation needed]} It is subject to ex-situ conservation.[1] It grows at altitudes between 850 and 3250 m. from 26° to 15° north latitude, from Sinaloa, Mexico to Nicaragua and Honduras. It occurs within a rainfall regime that rains mostly in summer. ^{[citation needed]}

Pinus pseudostrobus
var. apulcensis in cultivation
Conservation status
Least Concern  (IUCN 3.1)[1]
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
(unranked):	Gymnosperms
Division:	Pinophyta
Class:	Pinopsida
Order:	Pinales
Family:	Pinaceae
Genus:	Pinus
Subgenus:	P. subg. Pinus
Section:	P. sect. Trifoliae
Subsection:	P. subsect. Ponderosae
Species:	P. pseudostrobus
Binomial name
Pinus pseudostrobus Lindl.
Natural range of Pinus pseudostrobus. Pinus pseudostrobus is also found in El Salvador.[2]
Synonyms
Pinus angulata Roezl[3] Pinus alpucensis Lindl.[4] Pinus astecaensis Roezl ex Gordon[4] Pinus coatepecensis (Martínez)Gaussen[3] Pinus estevezii (Martínez) J.P.Perry[3] Pinus heteromorpha Roezl[3] Pinus nubicola J.P.Perry[3] Pinus oaxana Mirov [4] Pinus orizabae Gordon[3] Pinus prasina Roezl[3] Pinus protuberans Roezl[5] Pinus regeliana Roezl[3] Pinus yecorensis Debreczy & I.Ràcz

A stand of about 15 fully mature smooth-bark Mexican pines is in Imperial County, California, at the Palo Verde County Park, in a narrow strip of land between Hwy 78 and the Colorado River. ^{[citation needed]}

English botanist John Lindley described the species in 1839. It is divided into Pinus pseudostrobus var.apulcensis (Lindl.)Shaw (Apulco pine), Pinus pseudostrobus f.protuberans Martínez and Pinus pseudostrobus var.pseudostrobus.[2][6]

It has been introduced in New Zealand near sea level and has done well.^{[citation needed]}

• 
  Male cones at San Francisco Botanical Garden
• 
  Pinus pseudostrobus, Cerro Pelón, Mexico

References

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