Populus deltoides W.Bartram ex Marshall
  • Arbust. Amer. : 106 (1785)
  • Poibleog ghallda

Cite taxon page as 'WFO (2023): Populus deltoides W.Bartram ex Marshall. Published on the Internet;http://www.worldfloraonline.org/taxon/wfo-0000928101. Accessed on: 30 May 2023'

General Information

Plants to 55 m, 35 dm diam.; moderately to strongly hetero-phyllous, (often 2 or more trunks near base). Bark light brown, deeply furrowed. Branchlets yellow-brown, becoming tan by third year, round or 5-angled, coarse or not, (1-)2-3.5(-6) mm diam., glabrous or thinly long-hairy. Winter buds greenish yellow, glabrous or stiffly hairy, resinous (resin yellow, moderately fragrant); terminal buds (6-)8-15(-21) mm; flowering buds separated on branchlets, (8-)14-20(-28) mm. Leaves: petiole distally flattened at right angle to plane of blade, (1-)3-8(-13) cm, about equaling blade length, (glabrous); blade broadly triangular-ovate, (1-)3-9(-14) × (1.5-) 3-9(-16.5) cm, w/l = 4/5-6/5, base truncate to cordate or broadly cuneate, basilaminar glands 0-6, round or tubular, margins translucent, ciliate, apex abruptly short- or long-acuminate, surfaces grayish green to bright green, glabrous (or visibly pilose only at emergence); preformed blade margins coarsely crenate-serrate midblade, teeth (3-)5-15(-30) on each side (graded, rounded), sinuses (0.4-)0.7-5(-7) mm deep; neoformed blade margins crenate-serrate, teeth (10-) 25-40(-55) on each side (graded), sinuses (0.1-) 0.5-1.5(-3) mm deep. Catkins loosely (3-) 15-40(-55)-flowered, (0.7-)5-18(-24 in fruit) cm; floral bract apex deeply cut, not ciliate. Pedicels 1-13(-17 in fruit) mm. Flowers: discs saucer-shaped, not obviously oblique, entire, 1-3(-4) mm diam.; stamens 30-40(-55); anthers truncate; ovary (3- or)4-carpelled, ovoid; stigmas 2-4, platelike, spreading. Capsules ovoid, (4-)8-11 (-16) mm, glabrous, (3- or)4-valved. Seeds (3-)7-10 (-23) per placenta. 2n = 38.

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

    Tall tree with ± spreading branches and a broad crown, the bark becoming deeply furrowed and nearly black; terminal buds glabrous, viscid; petioles strongly flattened; lvs glabrous, typically broadly deltoid, 8–14 cm, nearly as wide, short-acuminate, broadly truncate or subcordate at base, serrate with incurved, callous-tipped teeth (the largest teeth mostly 2–5 mm deep), generally bearing 2–5 prominent glands on the upper side at the very base; lowest lateral veins of the lvs widely spreading; scales of the catkins fringed; floral disk 1.5–4 mm wide; stamens (30–)40–80; stigmas 3 or 4, broadly dilated; frs ovoid, 3–4- valved, 6–10 mm, on pedicels 3–10 mm, forming a loose raceme; seeds (3–)7–10(–18) per placenta; 2n=38. Low woods and moist prairies and river-banks; Que. and N. Engl. to Fla. and Tex., and w. to the base of the Rocky Mts. Var. deltoides, the eastern cottonwood, widespread in our range, has gray or reddish-brown twigs, glabrous winter-buds, and mostly 3–5 glands at the base of the lvs, the lvs of the short shoots with mostly 15–30 teeth per side. The wholly confluent var. occidentalis Rydb., the Great Plains cottonwood, forming gallery forests along the rivers across the plains, and encroaching into the westerly Great Lakes region, has yellowish twigs, finely pubescent winter buds, mostly only 2 basal glands on the lvs, and mostly only 5–15 teeth on each side of the often more deltoid-ovate and more long-acuminate lvs. (P. sargentii; P. deltoides ssp. monilifera)

  • Provided by: [A].Manual of Vascular Plants of Northeastern US and Canada
    • Source: [
    • 2
    • ]. 

    Distribution Map

    • Introduced distribution
    Introduced into
    • Europe Northern Europe Ireland

    Nationally Preferred Names

    Poibleog ghalldaIrishIE

    Other Local Names

    Eastern cottonwood, cotonier


     Information From

    Manual of Vascular Plants of Northeastern US and Canada
    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.
    • A Content licensed under Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License
    Flora of North America @ efloras.org
    'Flora of North America @ eFloras (2008). Published on the Internet http://www.efloras.org/flora_page.aspx?flora_id=1 [accessed August 2016]' Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
    • B Flora of North America Association
    Irish Vernacular Names
    • C All Rights Reserved
    Global Tree Search
    BGCI. 2022. GlobalTreeSearch online database (version 1.6). Botanic Gardens Conservation International. Richmond, UK. DOI: 10.13140/RG.2.2.34206.61761 Available at https://tools.bgci.org/global_tree_search.php. Accessed on (15/06/2022).
    • D Botanic Gardens Conservation International
    International Union for Conservation of Nature and Natural Resources
    IUCN 2022. The IUCN Red List of Threatened Species. Version 2021-3. ISSN 2307-8235
    • E See IUCN Terms and conditions of use http://www.iucnredlist.org/info/terms-of-use
    World Flora Online Data. 2022.
    • F CC0 1.0 Universal (CC0 1.0).
    World Flora Online Consortium
    World Flora Online Data. 2017.
    • G CC0 1.0 Universal (CC0 1.0).