Ostrya virginiana (Mill.) K.Koch
  • Dendrologie
  • Eastern hop hornbeam, ironwood, ostryer de Virginie, bois de fer

Cite taxon page as 'WFO (2021): Ostrya virginiana (Mill.) K.Koch. Published on the Internet;http://www.worldfloraonline.org/taxon/wfo-0000261470. Accessed on: 17 Jun 2021'

General Information

Trees , to 18 m; trunks short, crowns open, narrow to broadly rounded. Bark grayish brown or steel gray, shredding into narrow, sometimes rather ragged, vertical strips. Twigs sparsely pubescent to densely velutinous. Leaves: petiole glabrous to pubescent, without stipitate glands. Leaf blade narrowly ovate or elliptic to oblong-lanceolate, (5--)8--10(--13) × 4--5(--6) cm, base narrowly rounded to cordate or cuneate, margins sharply and unevenly doubly serrate, apex usually abruptly acuminate, sometimes acute or gradually tapering; surfaces abaxially sparsely to moderately pubescent (or sometimes densely villous), especially on major veins. Inflorescences: staminate catkins 2--5 cm; pistillate catkins 0.8--1.5 cm. Flowering with leaves in late spring. Infructescences 3.5--6.5 × 2--2.5 cm; bracts 1--1.8 × 0.8--1 cm. 2 n = 16.

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

    "Tree to 20 m; twigs and petioles at first pilose and sometimes glandular, later glabrescent; lvs narrowly to broadly oblong or ovate, short-acuminate, sharply and often doubly serrate; fruiting catkins short-cylindric, 3–5 cm, each inflated sac flattened-ovoid 1–3 cm, bristly at base; nutlet 5 mm; 2n=16. Moist or dry woods and banks; N.S. to Man., s. to Fla. and Tex."

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

    Other Local Names

    Eastern hop hornbeam, ironwood, ostryer de Virginie, bois de fer


     Information From

    World Flora Online Data. 2017.
    • A CC0 1.0 Universal (CC0 1.0).
    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.
    • B 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.
    • C Flora of North America Association
    World Flora Online consortium
    World Flora Online Data. 2018.
    • D CC0 1.0 Universal (CC0 1.0).
    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.
    • E Botanic Gardens Conservation International