Comarum palustre L.
  • Sp. Pl. : 502 (1753)
  • Marsh cinquefoil

Cite taxon page as 'WFO (2023): Comarum palustre L. Published on the Internet; Accessed on: 05 Jun 2023'

General Information

Herbs perennial, 20–30 cm tall. Rhizome branched, dark brown, long, woody. Flowering stems ascending, branched near base, pale red-brown, hollow, glabrous in lower part, hairy in upper part. Radical leaves 6–16 cm including petiole; stipules mostly adnate to petiole, membranous; petiole 2.5–12 cm; leaf blade imparipinnate, 5–7-foliolate; upper cauline leaves: stipules ovate, foliaceous, apex often serrate; leaf blade 3-foliolate; leaflets sessile or subsessile, adaxially dark green, elliptic or oblong, 4–7 × 1.2–3 cm, abaxially villous, adaxially glabrous or slightly appressed pilose, base cuneate, margin proximally entire, distally sharply serrate, apex obtuse or acute. Inflorescence terminal or axillary, cymose, 1- to several flowered; peduncle and pedicels pilose and glandular hairy. Flowers 1–1.5 cm in diam.; pedicel 1–1.5 cm; bracts conic, 3–5 mm. Hypanthium saucer-shaped, abaxially pilose. Sepals spreading, dark purple, triangular-ovate, 0.7–1.8 cm, both surfaces pilose, apex acuminate; epicalyx segments lanceolate to linear, 4–9 mm, abaxially pilose, apex acute or acuminate. Petals dark purple, ovate-lanceolate, 3–8 mm, shorter than sepals, apex acuminate. Stamens 15–25, shorter than the petals; filaments and anthers dark purple. Ovary dark purple, ovoid, glabrous; style filiform. Achenes numerous, yellow-brown, compressed ovoid, ca. 1 mm, glabrous. Fl. May–Aug, fr. Jul–Oct.

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

    Stems 1–10(–18) dm. Leaves: petiole 5–10(–15) cm; leaflets usually abaxially glaucous, adaxially green, sometimes silvery-silky, often aging reddish, 1.5–10(–12) × (0.8–)1–5 cm. Pedicels 5–25(–30) mm. Flowers: epicalyx bractlets narrowly lanceolate to lanceolate, 2–7(–9) mm, usually equal to or shorter than sepals; sepals greenish purple adaxially, (5–)7–12(–14) mm, apex acuminate; petals 2.5–6(–8) mm; anthers dark purple, 0.8–1.2 mm, connectives thickened, greenish purple to purple; styles 0.9–2 mm. 2n = 28, (35)36, 42, (60, 62, 63)64.

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

    Distribution Map

    • Native distribution
    Found in
    • Europe Northern Europe Ireland

    Nationally Preferred Names

    Marsh cinquefoilEnglishIE
    Cnó léanaIrishIE

    Other Local Names

    Cúig bileach uisceIrishIE
    Seamróg chúig bhileachIrishIE
    Cnámh léanaIrishIE
    Purple marshlocks, marsh potentilla, comaret des marais

     Information From

    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.
    • A 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.
    • B Missouri Botanical Garden
    Irish Vernacular Names
    • C All Rights Reserved
    International Union for Conservation of Nature and Natural Resources
    IUCN 2022. The IUCN Red List of Threatened Species. Version 2021-3. ISSN 2307-8235
    • D See IUCN Terms and conditions of use
    World Flora Online Data. 2021.
    • E CC0 1.0 Universal (CC0 1.0).
    Sapindaceae. World Flora Online Data. 2022.
    • 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).