Pinus palustris Mill.
  • Gard. Dict. ed. 8
  • Longleaf pine

Cite taxon page as 'WFO (2021): Pinus palustris Mill. Published on the Internet; Accessed on: 09 Dec 2021'

General Information

Trees to 45 m tall; trunk to 1.2 m d.b.h. in native range; bark orange-brown, with coarse, oblong, scaly plates; crown rounded; branches spreading-descending, upcurved at tips; branchlets orange-brown, aging darker brown, stout, rough; winter buds silvery white, ovoid, 3-4 cm, scales fringed at margin. Needles spreading-recurved, (2 or)3 per bundle, yellow-green, slightly twisted, 20-45 cm × ca. 1.5 mm, stomatal lines present on all surfaces, base with persistent sheath 2-2.5(-3) cm, margin finely serrulate. Seed cones solitary or paired toward branchlets tips, sessile or rarely shortly pedunculate, dark brown, ovoid-cylindric when open, 15-25 cm, maturing in 2 years, then quickly shedding seeds and falling. Apophyses dull, nearly rhombic, slightly thickened and raised, strongly cross keeled; umbo broadly triangular, with a short, stiff, reflexed prickle. Seeds pale brown, mottled darker, truncate-obovoid, ca. 1 cm; wing 3-4 cm.

  • Provided by: [A].Flora Of CHina @
    • Trees to 47m; trunk to 1.2m diam., straight; crown rounded. Bark orange-brown, with coarse, rectangular, scaly plates. Branches spreading-descending, upcurved at tips; twigs stout (to 2cm thick), orange-brown, aging darker brown, rough. Buds ovoid, silvery white, 3--4cm; scales narrow, margins fringed. Leaves (2)--3 per fascicle, spreading-recurved, persisting 2 years, 20--45cm ´ ca. 1.5mm, slightly twisted, lustrous yellow-green, all surfaces with fine stomatal lines, margins finely serrulate, apex abruptly acute to acuminate; sheath 2--2.5(--3)cm, base persistent. Pollen cones cylindric, 30--80mm, purplish. Seed cones maturing in 2 years, quickly shedding seeds and falling, solitary or paired toward branchlet tips, symmetric, lanceoloid before opening, ovoid-cylindric when open, 15--25cm, dull brown, sessile (rarely short-stalked); apophyses dull, slightly thickened, slightly raised, nearly rhombic, strongly cross-keeled; umbo central, broadly triangular, with short, stiff, reflexed prickle. Seeds truncate-obovoid; body ca. 10mm, pale brown, mottled darker; wing 30--40mm. 2 n =24.

    • Provided by: [B].Flora of North America @
      • Source: [
      • 1
      • ]. 

      "Tall tree, to 30 m; bark becoming orange-brown, with rough, scaly plates; twigs very stout; winter buds large, to 2.5 cm, covered with silvery-white, fringed scales; lvs in 3’s, closely crowded at the ends of the branches, persistent 2 years, light green, soft, often drooping, 20–30(–50) cm; cones divergent, often pendent, conic-oblong, 15–25 x 5–6 cm, opening at maturity and soon falling; apophysis thick and prominently ridged, the umbo elevated, with a small, reflexed spine; seeds ca 4 cm. Moist or dry, sandy soil, largely on the coastal plain, less commonly on the piedmont; se. Va. to Fla. and Tex. (P. australis F. Michx., an illegitimate substitute name)"

    • Provided by: [C].New York Botanical Garden
      • Source: [
      • 2
      • ]. 

      Other Local Names

      Longleaf pine


       Information From

      Flora Of CHina @
      'Flora of China @ eFloras (2008). Published on the Internet [accessed August 2016]' Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
      • A Missouri Botanical Garden
      Flora of North America @
      'Flora of North America @ eFloras (2008). Published on the Internet [accessed August 2016]' Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
      • B Flora of North America Association
      New York Botanical Garden
      Descriptions of plants should be attributed to the full citation for each individual article, chapter or book that is the source for each record, which should include the authors of original publication.
      • C Content licensed under Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License
      Global Tree Search
      BGCI. 2018. GlobalTreeSearch online database. Botanic Gardens Conservation International. Richmond, U.K. Available at Accessed on 30/11/2018.
      • D Botanic Gardens Conservation International
      International Union for Conservation of Nature v.3
      IUCN 2019. The IUCN Red List of Threatened Species. Version 2019-1.
      • E See IUCN Terms and conditions of use
      International Union for Conservation of Nature
      IUCN 2016. IUCN Red List of Threatened Species. Version 2016-2
      • F All Rights Reserved
      • G CC0 1.0 Universal (CC0 1.0).
      World Flora Online consortium
      World Flora Online Data. 2018.
      • H CC0 1.0 Universal (CC0 1.0).