Thalictrum alpinum L.
  • Sp. Pl. : 545 (1753)
  • Alpine meadow-rue

Cite taxon page as 'WFO (2023): Thalictrum alpinum L. Published on the Internet; Accessed on: 30 Jan 2023'

General Information

Plants 5--40 cm tall, glabrous. Roots fibrous. Rhizome slender. Stems simple or rarely branched, erect. Leaves 4 or more, all basal; petiole 1.5--3 cm; leaf blade pinnately 2-ternate, 1.5--4 cm; leaflets cuneate-obovate to orbicular-ovate, 3--5 × 3--5(--20) mm, thinly leathery, apex 3(--5)-lobed; lobes crenate. Inflorescence racemelike, few flowered; peduncle simple or branched. Pedicel erect or recurved at anthesis, recurved in fruit. Sepals early deciduous, purplish tinged, ovate to elliptic, ca. 2 mm. Stamens 7--10(--15); filament purplish, filiform; anther yellow, 1.2--3 mm, apex mucronate. Carpels (2--)3--5(--6); stigma purple, narrowly triangular, equaling ovary. Achenes shortly stipitate or sessile; body narrowly ovoid to lanceolate-obovoid, 2--3.5 mm; persistent style broadly triangular; veins ca. 8, stout. Fl. Jun--Aug.

  • Provided by: [C].Flora of China @
    • Source: [
    • 1
    • ]. 

    Stems erect, scapose, or nearly scapose with very slender rhizomes, (3-)5-20(-30) cm, glabrous. Leaves all basal or single cauline leaf near base, 2-10 cm. Leaf blade 2×-pinnately compound, proximal primary divisions ternate; leaflets cuneate-obovate to orbiculate, apically 3-5-lobed, 2-10 mm, surfaces glabrous. Inflorescences racemes, usually elongate, few flowered. Flowers: pedicels recurved in fruit; sepals early deciduous, purplish tinged, ovate or elliptic, 1-2.3(-2.7) mm; stamens 8-15; filaments purple; anthers bright yellow, 1.5-3 mm; stigmas purple. Achenes 2-6, nearly sessile; body lance-obovoid, 2-3.5 mm, with thick veins. 2 n = 14, 21.

  • Provided by: [B].Flora of North America @
    • Source: [
    • 2
    • ]. 

    Perennial, 5-15 cm when flowering, up to 30 cm when fruiting, stem glabrous, simple, rarely branched, usually without leaves. Basal leaves bipinnate, 2-10 cm long with petiole, linear-obong, pinnules in 2-5 pairs, obovate, lowermost with 1-2 pairs of leaflets, leaflets 3-5 x 2-4 mm, coriaceous, shiny above, glabrous, obovate, cuneate, incised, lobes usually dentate, teeth rounded at apex. Flowers arranged in a simple terminal raceme, bracts narrowly linear. Pedicels 2-5 mm in flower, upto 10 mm in fruit, ultimately bent down wards, glabrous or papillate. Sepals 4, 2-3 x 1 mm, elliptical, glabrous or glandular. Stamens 8-10, filaments + 3 mm, filiform, purplish, anthers yellowish, indistinctly mucronate. Carpels 3-5, 2-3 x 1 mm, sessile or shortly stalked, curved downwards, with 6 lateral ribs, glabrous, style very short.

  • Provided by: [D].Flora of Pakistan
    • Source: [
    • 4
    • ]. 


    5–15 cm hoch, kahl. Alle Blätter in grundständiger Rosette, seltener auch 1 Stängelblatt, 1–2fach gefiedert, Teilblättchen nur 2–4 mm lang, rundlich, grob gezähnt bis tief geteilt, oberseits dunkelgrün, unterseits heller. Blüten in endständiger

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


    6–7. Rasen, Moore, (subalpin-)alpin. GR (Unterengadin, Münstertal, Bernina).

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

    Distribution Map

    • Native distribution
    Found in
    • Europe Northern Europe Ireland

    Nationally Preferred Names

    Alpine meadow-rueEnglishIE
    Rú léana AlpachIrishIE

    Other Local Names

    Ruta alpinaRaeto-RomanceCH
    Pigamo alpinoItalianCH
    Ruibh (Rubha) AilpeacIrishIE
    Arctic meadow-rue, dwarf meadow-rue, pigamon alpin
    Pigamon des AlpesFrenchCH

     Information From

    Flora Helvetica – Illustrierte Flora der Schweiz
    Flora Helvetica – Illustrierte Flora der Schweiz, Konrad Lauber, Gerhart Wagner, Andreas Gygax. Haupt Verlag 2018.
    • A All Rights Reserved
    Flora of North America @
    'Flora of North America @ eFloras (2008). Published on the Internet [accessed August 2016]' Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
    • B Flora of North America Association
    Flora of China @
    'Flora of China @ eFloras (2008). Published on the Internet [accessed August 2016]' Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
    • C Missouri Botanical Garden
    Flora of Pakistan
    Flora of Pakistan. Missouri Botanical Garden. Accessed on Jun. 2020.
    • D Missouri Botanical Garden
    Irish Vernacular Names
    • E All Rights Reserved
    World Flora Online Data. 2021.
    • F CC0 1.0 Universal (CC0 1.0).
    World Flora Online Consortium
    World Flora Online Data. 2017.
    • G CC0 1.0 Universal (CC0 1.0).