Brasenia schreberi J.F.Gmel.
  • Syst. Nat.
  • Water-shield, purple wen-dock, brasénie de Schreber


Cite taxon page as 'WFO (2019): Brasenia schreberi J.F.Gmel. Published on the Internet;http://www.worldfloraonline.org/taxon/wfo-0000392265. Accessed on: 17 Nov 2019'

General Information

Stems to 1--2 m, glabrous, base rhizomatous. Petiole 25--40 cm; leaf blade 5--10 × 3.5--6 cm, glabrous. Flowers 1--2 cm in diam.; peduncle 6--10 cm. Perianth dull purple; segments 10--15(--20) × 2--7 mm; petals slightly longer and narrower than sepals, apex obtuse. Stamens 1/2 as long as petals, anthers linear, ca. 4 mm. Fruit 6--10 mm. Seeds 1--2, 2.5--4 × 2--3 mm. Fl. Jun., fr. Oct. 2n = 72, 80.

  • Provided by: [F].Flora Of CHina @ efloras.org
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    Leaf blade 3.5-13.5 × 2-8 cm. Flowers ca. 2 cm diam.; perianth parts dull purple, 10-20 × 2-7 mm; petals slightly longer and narrower than sepals. Fruits 6-10 mm. Seeds 1-2, 2.5-4 × 2-3 mm. 2 n = 80.

  • Provided by: [B].Flora of North America @ efloras.org
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    "Stem to 2 m; lf-blades elliptic, 4–12 cm, half as wide; fls dull purple, on stout peduncles to 15 cm; sep and pet persistent, the latter 12–16 mm, the former somewhat shorter; 2n=80. Quiet water; N.S. and e. Que. to Minn., s. to Fla. and Tex.; also on the Pacific slope, and in tropical Amer., and the Old World. Summer."

  • Provided by: [G].New York Botanical Garden
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    Morphology

    Sepals purplish- or brownish- red, elliptic or narrowly oblong, 0.9–1.4 cm. long, 3–6 mm. wide, rounded atthe apex.

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    Apparently glabrous aquatic with all submerged parts covered with a profuse clear slimy jelly-like mucilage; the outsides of the sepals and petals, the undersurfaces of the leaves, submerged petioles, pedicels, etc., are covered with minute purplish glandular hairs which may secrete this mucilage.

  • Provided by: [C].Plants Of the World Online Portal - FTEA
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    Seeds pale brown, ellipsoid, 2.7–3.5 mm. long, 2–2.3 mm. wide.

  • Provided by: [C].Plants Of the World Online Portal - FTEA
    • Source: [
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    Filaments of the stamens filiform, 1 cm. long, papillose; anthers reddish, linear-oblong, 3.5 mm. long, apiculate.

  • Provided by: [C].Plants Of the World Online Portal - FTEA
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    Petals crimson, purplish- or brownish-red, narrowly oblong or linear-oblong, 1.2–1.7 cm. long, 3–4 mm. wide, narrowly rounded at the apex.

  • Provided by: [C].Plants Of the World Online Portal - FTEA
    • Source: [
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    Fruiting carpels ellipsoid or fusiform, 0.6–1 cm. long, 2–2.5 mm. wide; stigma persistent.

  • Provided by: [C].Plants Of the World Online Portal - FTEA
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    Carpels fusiform or narrowly ovoid, 5 mm. long, 1.5–2 mm. wide, sparsely papillose; stigma simple, 3–4.5 mm. long, papillose all over save for a narrow longitudinal area facing the perianth.

  • Provided by: [C].Plants Of the World Online Portal - FTEA
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    Leaf-blades round or broadly elliptic, 2.5–11.5 cm. long, 1.5–7 cm. wide, entire, green above, usually reddish-brown or purplish beneath with 12 nerves radiating from the centre; petiole-length depending on the depth of the water, 0.05–1 m. long or more, slender, ±1.5 mm. in diameter.

  • Provided by: [C].Plants Of the World Online Portal - FTEA
    • Source: [
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    Pedicels reddish-brown, 4–5 cm. long, 2 mm. in diameter.

  • Provided by: [C].Plants Of the World Online Portal - FTEA
    • Source: [
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    Stamens with slender papillose filaments up to 1 cm. long; anthers reddish, 3.5 mm. long, narrowly oblong, apiculate at the apex.

  • Provided by: [E].Plants Of the World Online Portal - FZ
    • Source: [
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    Carpels 5 x 2 mm., narrowly lanceolate-ovoid, sparsely papillose, stigma simple, 3 mm. long, papillose.

  • Provided by: [E].Plants Of the World Online Portal - FZ
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    Ripe carpels 7 x 2 mm., ellipsoid with a persistent stigma.

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    Seeds 3.5 x 2.3 mm., ellipsoid, testa pale brown.

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    Leaves floating, rotund, peltate, 7.5 (10) x 5–7 cm., margin entire, green above, reddish-brown or purplish below, nerves 12, radiating from the apex of the petiole, rather faint, petiole reddish-brown, attached at the centre of the leaf-blade, up to 1 m. or more long according to the depth of the water, c. 1.5 mm. in diam.

  • Provided by: [E].Plants Of the World Online Portal - FZ
    • Source: [
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    Glabrous aquatic plant with all its submerged parts covered with a profuse, clear, slimy mucilage.

  • Provided by: [E].Plants Of the World Online Portal - FZ
    • Source: [
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    Sepals purplish-brownish-red, petaloid, c. 1.4 x 0.3 cm., narrowly oblong, apex rounded.

  • Provided by: [E].Plants Of the World Online Portal - FZ
    • Source: [
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    Flowers solitary, axillary on reddish-brown peduncles up to c. 8 cm. long, c. 2 mm. in diam.

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    Petals similar to the sepals but slightly larger.

  • Provided by: [E].Plants Of the World Online Portal - FZ
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    Glabrous, aquatic herb. Submerged parts of plant covered with profuse, clear, slimy mucilage. Leaves floating, peltate. Flowers produced under water, purplish to brownish red.

  • Provided by: [D].e-Flora of South Africa
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    Habitat

    Stagnant pools.

  • Provided by: [D].e-Flora of South Africa
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    Literature

    SELECTED REFERENCES

    Osborn, J. M. and E. L. Schneider. 1988. Morphological studies of the Nymphaeaceae sensu lato. XVI. The floral biology of Brasenia schreberi. Ann. Missouri Bot. Gard. 75: 778-794.

  • Provided by: [B].Flora of North America @ efloras.org
    • Source: [
    • 12
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    Other Local Names

    NameLanguageCountry
    Water-shield, purple wen-dock, brasénie de Schreber

     Information From

    Cabombaceae
    World Flora Online Data. 2017.
    • A CC0 1.0 Universal (CC0 1.0).
    Flora of North America @ efloras.org
    http://www.efloras.org/flora_page.aspx?flora_id=1
    '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
    Plants Of the World Online Portal - FTEA
    https://www.kew.org/science/who-we-are-and-what-we-do/strategic-outputs-2020/plants-of-the-world-online
    http://www.plantsoftheworldonline.org/terms-and-conditions
    • C
    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
    • D All Rights Reserved
    Plants Of the World Online Portal - FZ
    https://www.kew.org/science/who-we-are-and-what-we-do/strategic-outputs-2020/plants-of-the-world-online
    http://www.plantsoftheworldonline.org/terms-and-conditions
    • E
    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.
    • F 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.
    • G Content licensed under Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License
    World Flora Online consortium
    http://www.worldfloraonline.org/organisation/WFO
    World Flora Online Data. 2018.
    • H CC0 1.0 Universal (CC0 1.0).
    International Union for Conservation of Nature v.3
    https://www.iucnredlist.org/
    IUCN 2019. The IUCN Red List of Threatened Species. Version 2019-1.
    • I See IUCN Terms and conditions of use http://www.iucnredlist.org/info/terms-of-use
    International Union for Conservation of Nature
    https://www.iucn.org/
    IUCN 2016. IUCN Red List of Threatened Species. Version 2016-2
    • J All Rights Reserved