Dryas octopetala L.
  • Sp. Pl. : 501 (1753) 
  • Mountain avens


Cite taxon page as 'WFO (2023): Dryas octopetala L. Published on the Internet;http://www.worldfloraonline.org/taxon/wfo-0000996365. Accessed on: 29 Nov 2023'

Local Descriptions

Order descriptions by:

General Information

Plants 2.5–12 cm. Leaf blades oblong or ovate to elliptic, 3–16 × 0.5–6.5 mm, base usually truncate or cordate, sometimes cuneate, margins ?flat?, coarsely dentate to serrate, sinuses 5–50(–65)% to midvein, apex acute to rounded, surfaces plicate along midvein, usually rugulose, sometimes rugose, ?midvein and lateral veins sunken?, abaxial tomentose to woolly, adaxial usually glabrous, rarely tomentose or sparsely hairy proximally on midvein, feathery hairs scattered to rare along midveins abaxially and on petioles, scattered to rare elsewhere, midveins and petiole apices usually abaxially stipitate-glandular. Peduncles 11–125 mm. Flowers erect at flowering; sepals linear-oblong, 4–7 × 1.5–2.5 mm; petals 8, spreading, white or cream, 9–14 × 5–9 mm; filaments glabrous. Achenes 2.5–3 mm; styles 16–32 mm.

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

    Morphology

    Liegender Zwergstrauch mit bis 50 cm langen Zweigen. Blätter gestielt, 1–2,5 cm lang, ungeteilt, eiförmig bis eilanzettlich, grob und abgerundet gezähnt, unterseits weissfilzig. Blüten einzeln auf 5–10 cm hohen Stielen, weiss, Duchmes

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

    Ecology

    6–7. Felsschutt, Felsen, steinige Rasen, auf Kalk, subalpin-alpin. A, M in Alpennähe, J (nördlich bis SO).

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

    Liegender Zwergstrauch mit bis 50 cm langen Zweigen. Blätter gestielt, 1–2,5 cm lang, ungeteilt, eiförmig bis eilanzettlich, grob und abgerundet gezähnt, unterseits weissfilzig. Blüten einzeln auf 5–10 cm hohen Stielen, weiss, Duchmes

    Ecology

    6–7. Felsschutt, Felsen, steinige Rasen, auf Kalk, subalpin-alpin. A, M in Alpennähe, J (nördlich bis SO).

    Flora of North America @ efloras.orgGeneral Information

    Plants 2.5–12 cm. Leaf blades oblong or ovate to elliptic, 3–16 × 0.5–6.5 mm, base usually truncate or cordate, sometimes cuneate, margins ?flat?, coarsely dentate to serrate, sinuses 5–50(–65)% to midvein, apex acute to rounded, surfaces plicate along midvein, usually rugulose, sometimes rugose, ?midvein and lateral veins sunken?, abaxial tomentose to woolly, adaxial usually glabrous, rarely tomentose or sparsely hairy proximally on midvein, feathery hairs scattered to rare along midveins abaxially and on petioles, scattered to rare elsewhere, midveins and petiole apices usually abaxially stipitate-glandular. Peduncles 11–125 mm. Flowers erect at flowering; sepals linear-oblong, 4–7 × 1.5–2.5 mm; petals 8, spreading, white or cream, 9–14 × 5–9 mm; filaments glabrous. Achenes 2.5–3 mm; styles 16–32 mm.

    Distribution Map

     
    • Native distribution
    Found in
    • Europe Northern Europe Ireland

    Nationally Preferred Names

    NameLanguageCountry
    Mountain avensEnglishIE
    LeaithínIrishIE

    Other Local Names

    NameLanguageCountry
    Dryade à huit pétalesFrenchCH
    Machal sléibheIrishIE
    Camedrio alpinoItalianCH
    SilberwurzGermanCH
    Feglia-chamutschRaeto-RomanceCH

     Information From

    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.
    • A All Rights Reserved
    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
    Irish Vernacular Names
    https://www.missouribotanicalgarden.org/plant-science/plant-science/research-staff/article/380/wyse-jackson-peter-s.aspx
    • C All Rights Reserved
    Rosaceae
    https://powo.science.kew.org/
    World Flora Online Data. 2022.
    • D CC0 1.0 Universal (CC0 1.0).
    Vahliaceae
    http://www.worldfloraonline.org/organisation/Vahliaceae
    World Flora Online Data. 2021.
    • E CC0 1.0 Universal (CC0 1.0).