Robinia pseudoacacia L.
  • Robinia


Cite taxon page as 'WFO (2021): Robinia pseudoacacia L. Published on the Internet;http://www.worldfloraonline.org/taxon/wfo-0000213931. Accessed on: 18 Sep 2021'

General Information

Trees, 10-25 m tall, deciduous. Bark gray-brown to dark brown, longitudinally fissured, rarely smooth. Branchlets gray-brown, sparsely hairy, glabrescent; stipulate spines up to 2 cm; winter buds small, with hairs. Leaves 10-25(-40) cm; rachis adaxially grooved; petiolule 1-3 mm; stipel acicular; leaflets 2-12 pairs, usually opposite or subopposite; leaflet blades oblong, elliptic, or ovate, 2-5 × 1.5-2.2 cm, abaxially grayish green and with appressed pubescence when young but glabrescent, adax­ially green, base rounded to broadly cuneate, margin entire, apex rounded, retuse, and apiculate. Racemes axillary, 10-20 cm, pendulous, many flowered, fragrant; bracts caducous. Pedi­cel 7-8 mm. Calyx obliquely campanulate, 7-9 mm; teeth 5, triangular to ovate-triangular, densely appressed pubescent. Co­rolla white, stipitate; standard suborbicular, ca. 1.6 × 1.9 cm, re­flexed, inside with yellow spots, base rounded, apex with a sinus; wings obliquely obovate, subequal to standard, ca. 16 mm, one lateral auriculate rounded; keel falcate, triangular, equal to wings or slightly short, connate at leading edge, obtuse. Stamens diadelphous, one opposite to standard free. Ovary line­ar, ca. 1.2 cm, glabrous; stalk 2-3 mm; style subulate, ca. 8 mm, apically curved, apex piliferous; stigma terminal. Legume brown or with reddish brown stripes, linear-oblong, 5-12 × 1-1.3(-1.7) cm, compressed, apex volute and mucronate, carpo­podium short, narrow wings along ventral suture; calyx persis­tent, 2-15-seeded. Seeds brown to dark brown, slightly glossy, sometimes with stripes, subreniform, 5-6 × ca. 3 mm; hilum rounded, oblique to one end. Fl. Apr-Jun, fr. Aug-Sep. 2n = 20, 22.

  • Provided by: [C].Flora Of CHina @ efloras.org
    • Source: [
    • 1
    • ]. 

    "Tree to 25 m, the twigs and peduncles puberulent, becoming subglabrous; stipules commonly modified into spines 1 cm; lfls 7–19, oval or elliptic, 2–4 cm; racemes drooping, many-fld, 1–2 dm; fls white, fragrant, 1.5–2.5 cm; cal finely hairy, the upper lip truncate or broadly notched; ovary glabrous; fr 5–10 cm; 2n=20. Native from Pa. and s. Ind. to Okla., s. to Ga. and Ala., and often escaped from cult. n. to N.S. and Que. May, June."

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

    Morphology

    Bis 25 m hoher Baum oder Strauch mit dornigen Zweigen. Borke mit tiefen Längsrissen. Blätter unpaarig gefiedert, mit 3–10 Fiederpaaren. Teilblätter oval, ganzrandig, 2–5 cm lang. Blüten weiss, wohlriechend, in lockeren, hängenden Trauben. Fr

  • Provided by: [E].Flora Helvetica – Illustrierte Flora der Schweiz
    • Source: [
    • 3
    • ]. 

    Shrub or tree, up to 10 m high; robust, hard-wooded; bark thick, deeply furrowed, blackish. Leaves imparipinnate; stipules usually paired; spinescent. Flowers: intensely fragrant; in many-flowered racemes; corolla 15-20 mm long, white; Sep. Pods 50-100 mm long, with 4-10 seeds, not in distinct compartments.

  • Provided by: [A].e-Flora of South Africa
    • Source: [
    • 4
    • ]. 

    Deciduous tree, 3-25 m. Leaves imparipinnate, leaflet pairs 4-6, stipules paired, spinose. Flowers in pendulous panicles, white, fragrant. Pods thin, straight, reddish brown, constricted between seeds, dehiscent; remaining on tree over winter.

  • Provided by: [A].e-Flora of South Africa
    • Source: [
    • 5
    • ]. 

    Ecology

    5–6. Lichte Wälder, Dämme, Schuttplätze, eingebürgert, kollin-montan. CH. 1601 durch J. Robin in Europa eingeführt.

  • Provided by: [E].Flora Helvetica – Illustrierte Flora der Schweiz
    • Source: [
    • 3
    • ]. 

    Habitat

    Dry Grassland; Mesic Grassland. Roadsides, disturbed places.

  • Provided by: [A].e-Flora of South Africa
    • Source: [
    • 4
    • ]. 

    River banks, dongas, roadsides.

  • Provided by: [A].e-Flora of South Africa
    • Source: [
    • 5
    • ]. 

    Distribution

    Native to the southeastern parts of North America.

  • Provided by: [A].e-Flora of South Africa
    • Source: [
    • 4
    • ]. 

    Invasive weed from North America, Cape Peninsula, eastern southern Africa.

  • Provided by: [A].e-Flora of South Africa
    • Source: [
    • 5
    • ]. 

    Other Local Names

    NameLanguageCountry
    RobiniaRaeto-RomanceCH
    RobiniaItalianCH
    RobinierFrenchCH
    RobinieGermanCH

      Bibliography

     Information From

    e-Flora of South Africa
    e-Flora of South Africa. v1.21. 2018. South African National Biodiversity Institute. http://ipt.sanbi.org.za/iptsanbi/resource?r=flora_descriptions&v=1.21
    • A All Rights Reserved
    Fabaceae
    World Flora Online Data. 2017.
    • B CC0 1.0 Universal (CC0 1.0).
    Flora Of CHina @ efloras.org
    http://www.efloras.org/flora_page.aspx?flora_id=2
    'Flora of China @ eFloras (2008). Published on the Internet http://www.efloras.org/flora_page.aspx?flora_id=2 [accessed August 2016]' Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
    • C Missouri Botanical Garden
    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.
    • D Content licensed under Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License
    Flora Helvetica – Illustrierte Flora der Schweiz
    http://www.flora-helvetica.ch
    Flora Helvetica – Illustrierte Flora der Schweiz, Konrad Lauber, Gerhart Wagner, Andreas Gygax. Haupt Verlag 2018.
    • E All Rights Reserved
    World Flora Online consortium
    http://www.worldfloraonline.org/organisation/WFO
    World Flora Online Data. 2018.
    • F CC0 1.0 Universal (CC0 1.0).
    Global Tree Search
    https://tools.bgci.org/global_tree_search.php
    BGCI. 2018. GlobalTreeSearch online database. Botanic Gardens Conservation International. Richmond, U.K. Available at www.bgci.org. Accessed on 30/11/2018.
    • G Botanic Gardens Conservation International