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Pinus monophylla Torr. & Frém.

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Credits

New article for Trees and Shrubs Online.

Recommended citation
'Pinus monophylla' from the website Trees and Shrubs Online (treesandshrubsonline.org/articles/pinus/pinus-monophylla/). Accessed 2024-04-27.

Genus

Common Names

  • Singleleaf Nut Pine

Synonyms

  • Pinus cembroides var. monophylla (Torr. & Frém.) Voss

Glossary

section
(sect.) Subdivision of a genus.
terete
Like a slender tapering cylinder.

References

There are no active references in this article.

Credits

New article for Trees and Shrubs Online.

Recommended citation
'Pinus monophylla' from the website Trees and Shrubs Online (treesandshrubsonline.org/articles/pinus/pinus-monophylla/). Accessed 2024-04-27.

Pinus monophylla

Pinus monophylla at the Folly Arboretum, Hungary. 12 September 2019. Image Tom Christian.

Editorial Note

The text below is from (Bean 1976) who discussed this taxon as Pinus cembroides var. monophylla (Torr. & Frém.) Voss. We are reorganising articles within Pinus to enable a partial revision of this important genus to commence in late 2023. See the Editorial Note at the beginning of the genus article for further details.

TC, October 2023.

Leaves solitary and terete (circular in cross-section), or occasionally in pairs and then semi-terete. It has a more westerly distribution than [Pinus edulis], mainly in Utah, Arizona, Nevada, and S. California, and often forms pure stands of considerable extent. It is one of the main sources of pinyons (pine nuts). The best known and largest specimen in Britain grows in the University Botanic Garden, Cambridge; planted shortly before 1900, it measures 33 × 3{1/2} ft (1969); when young it gained an average of 8 in. in height per annum (Journ. R.H.S., Vol. 41 (1915), p. 7 and fig. 8). There are smaller trees at Edinburgh and Kew. This pine deserves to be more widely planted, especially in the drier parts of the country.

From the Supplement (Vol. V)

This is better treated as a species – P. monophylla Torr. & Frem. The best recorded example grows in the University Botanic Garden, Cambridge, and measures 40 × 41⁄4 ft (1984). At Deene Park, Northamptonshire, it is 41 × 23⁄4 ft (1982) and there are smaller plants at Kew and Edinburgh.

Pinus monophylla

The largest and happiest-looking Pinus monophylla known in the UK is this tree at Trent College, Derbyshire, planted in 1918 and photographed July 2015. Image Owen Johnson.

Pinus monophylla

Foliage on Pinus monophylla at Arboretum Kalmthout, Belgium – 10 March 2016. Image © Jan De Langhe - Arboretum Wespelaar.

Pinus monophylla

Pinus monophylla close up with rosette forming sheaths and sharp terete needles (Arboretum Kalmthout, Belgium – 10 March 2016). Image © Jan De Langhe - Arboretum Wespelaar.

Pinus monophylla

Curved, terete needles with the sheaths forming rosettes on Pinus monophylla at Arboretum Kalmthout, Belgium – 10 March 2016). Image © Jan De Langhe - Arboretum Wespelaar.

Pinus monophylla

Pinus monophylla as a very young plant at Arboretum Het Leen Eeklo, Belgium (16 December 2007). Image © Jan De Langhe.

Pinus monophylla

The same Pinus monophylla, not much later, began to wither away year after year and eventually died (Arboretum Het Leen Eeklo 20 January 2011). Image © Jan De Langhe.

Pinus monophylla

Foliage on Pinus monophylla, from a plant at Arboretum Trompenburg, The Netherlands (8 August 2014). Image © Jan De Langhe - Arboretum Wespelaar.

Pinus monophylla

Initially pubescent branchlet and terete leaves, surfaced with numerous stomatal lines on Pinus monophylla (Arboretum Trompenburg, The Netherlands – 8 August 2014). Image © Jan De Langhe - Arboretum Wespelaar.

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