Pinus pseudostrobus

{{Short description|Species of conifer}}

{{Speciesbox

| image = Pinus pseudostrobus var apulcensis 2.jpg

| image_caption = var. apulcensis in cultivation

| status = LC

| status_system = IUCN3.1

| status_ref = {{cite iucn |author=Farjon, A. |date=2013 |title=Pinus pseudostrobus |volume=2013 |page=e.T42404A2977667 |doi=10.2305/IUCN.UK.2013-1.RLTS.T42404A2977667.en |access-date=16 November 2021}}

| genus = Pinus

| parent = Pinus subsect. Ponderosae

| display_parents = 3

| species = pseudostrobus

| authority = Lindl.

| range_map = Pinus pseudostrobus range map 1.png

| range_map_caption = Natural range of Pinus pseudostrobus. Pinus pseudostrobus is also found in El Salvador.{{cite web |title=Pinus pseudostrobus |url=https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:314879-2 |website=Plants of the World Online|access-date=31 March 2021 |ref=2}}

| synonyms = Pinus angulata Roezl{{cite web |title=Pinus pseudostrobus var.pseudostrobus |url=https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:77194584-1 |website=Plants of the World Online |access-date=2 April 2021 |ref=3}}

Pinus alpucensis Lindl.{{cite web |title=Pinus pseudostrobus var.apulcensis |url=https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:197069-2 |website=Plants of the World Online |access-date=2 April 2021 |ref=4}}

Pinus astecaensis Roezl ex Gordon

Pinus coatepecensis (Martínez)Gaussen

Pinus estevezii (Martínez) J.P.Perry

Pinus heteromorpha Roezl

Pinus nubicola J.P.Perry

Pinus oaxana Mirov

Pinus orizabae Gordon

Pinus prasina Roezl

Pinus protuberans Roezl{{cite web |title=Pinus pseudostrobus f.protuberans |url=https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:197074-2 |website=Plants of the World Online |access-date=4 April 2021 |ref=5}}

Pinus regeliana Roezl

Pinus yecorensis Debreczy & I.Ràcz

}}

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.{{cite web |title=Pinus pseudostrobus |url=https://www.inaturalist.org/taxa/135769-Pinus-pseudostrobus |website=iNaturalist |access-date=31 March 2021 |ref=6}} {{citation needed|date=April 2021}}

It is 8 to 25 m tall with a dense and round top.{{citation needed|date=April 2021}}It is threatened by logging and wood harvesting. The bark is brown and fissured and smooth when young. {{citation needed|date=April 2021}} It is subject to ex situ conservation. 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|date=April 2021}}

In some forested areas like southern Nuevo León Pinus pseudostrobus is the tree with largest volume per hectare.{{Cite journal |title=Modelación de la biomasa aérea en bosques templados subtropicales secos en el noreste de México |journal=Bosque |last1=Bautista Cruz |first1=Angelina |issue=3 |volume=43 |last2=González Cubas |first2=Rigoberto |doi=10.4067/S0717-92002022000300243 |year=2022 |language=Spanish |trans-title=Modeling of aerial biomass in dry subtropical temperate forests in northeastern Mexico |last3=Treviño Garza |first3=Eduardo Javier |last4=Yerena Yamallel |first4=José Israe |last5=Rodríguez |first5=Eduardo Alanís |last6=Aguirre Calderón |first6=Oscar Alberto|pages=243–251 |doi-access=free }}

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.

It has been introduced in New Zealand near sea level and has done well.{{citation needed|date=April 2021}}

File:Pinus pseudostrobus, male cones (11332867843).jpg|Male cones at San Francisco Botanical Garden

File:Pinus pseudostrobus Cerro Pelon.jpg|Pinus pseudostrobus, Cerro Pelón, Mexico