Ontario Weeds: Silvery cinquefoil
Excerpt from Publication 505, Ontario Weeds,
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Table of Contents
- Other Names
- General Description
- Stems and Roots
- Flowers and Fruit
- Similar Species
- Related Links
Stems & Roots: 10-50cm (4-20in.)
long, 1 to several from each stout perennial crown, erect or spreading
or nearly prostrate;
Leaves: Early leaves in a dense basal rosette; basal and stem leaves long-stalked, palmately compound with 3 or usually 5 to 7 leaflets which are dark green on the upper surface and silvery-gray on the undersurface (leaflets arranged like fingers from the palm of a hand) each leaflet shallowly and coarsely toothed to very deeply lobed; each leafstalk or stalkless upper leaf with 2 slender, pointed stipules at its junction with the stem.
Flowers & Fruit: Yellow, small (6-10mm, ¼-2/5in. across), in branching clusters at ends of branches; petals about the same length as sepals; and many stamens and pistils. Flowers from late May until autumn.
Habitat: Silvery cinquefoil occurs throughout Ontario, usually on coarse-textured, well-drained soils in open fields, pastures, waste areas, roadsides, and occasionally in lawns.
Similar Species: It is distinguished by its palmately compound leaves leaflets arranged like fingers from the palm of a hand, with coarsely toothed or lobed leaflets which are green on the upper surface but silvery-gray on the undersurface, and its small yellow flowers with petals and sepals of equal length.
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