Ulmus rubra Muhl.
  • Trans. Amer. Philos. Soc.
  • Slippery elm, orme rouge

Cite taxon page as 'WFO (2021): Ulmus rubra Muhl. Published on the Internet;http://www.worldfloraonline.org/taxon/wfo-0000416800. Accessed on: 22 Oct 2021'

General Information

Trees , 18-35 m; crowns open. Bark brown to red, deeply and irregularly furrowed. Wood soft. Branches spreading; twigs gray, densely pubescent when young, glabrous with age. Buds obtuse; scales red, margins red-tomentose. Leaves: petiole 5-7 mm, pubescent. Leaf blade obovate to ovate, 8-16 × 5-7.5 cm, base oblique, margins doubly serrate in distal 1/2-3/4, singly serrate proximally, basal teeth 6 or fewer, rounded, less distinct, apex acuminate; surfaces abaxially tomentose, dense tufts of white hair in axils of major veins, adaxially harshly scabrous, trichomes pointed toward apex, margins ciliate. Inflorescences dense fascicles less than 2.5 cm, 8-20-flowered, flowers and fruits not pendulous, subsessile; pedicel 1-2 mm. Flowers: calyx green to reddish, shallowly lobed, lobes 5-9, reddish pubescent; stamens 5-9; anthers reddish; stigmas exserted, pink reddish. Samaras yellow to cream, suborbiculate, 12-18 mm diam., broadly winged, samaras pubescent on body only, rusty-tomentose, margins glabrous. Seeds thickened, not inflated. 2 n = 28.

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

    "Tree to 20 m, with the shape of no. 1 [Ulmus americana L.], the twigs scabrous- pubescent; winter-buds densely covered with red-brown hairs; lvs oblong to obovate, thick and stiff, usually 10–20 cm, very rough above; fls fascicled, subsessile; stamens 5–9; stigmas pink; fr suborbicular, 1.5–2 cm, pubescent over the seed, otherwise glabrous, scarcely reticulate; 2n=28. Moist woods; s. Me. and s. Que. to e. N.D., s. to Fla. and Tex. (U. fulva)"

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

    Other Local Names

    Slippery elm, orme rouge


     Information From

    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.
    • A Flora of North America Association
    Global Tree Search
    BGCI. 2018. GlobalTreeSearch online database. Botanic Gardens Conservation International. Richmond, U.K. Available at www.bgci.org. Accessed on 30/11/2018.
    • B Botanic Gardens Conservation International
    International Union for Conservation of Nature
    IUCN 2016. IUCN Red List of Threatened Species. Version 2016-2
    • C All Rights Reserved
    International Union for Conservation of Nature v.3
    IUCN 2019. The IUCN Red List of Threatened Species. Version 2019-1.
    • D See IUCN Terms and conditions of use http://www.iucnredlist.org/info/terms-of-use
    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.
    • E Content licensed under Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License
    • F CC0 1.0 Universal (CC0 1.0).
    World Flora Online consortium
    World Flora Online Data. 2018.
    • G CC0 1.0 Universal (CC0 1.0).