'''''Thalictrum''''' is a [[genus]] of 120-200 species of [[flowering plant]]s in the family [[Ranunculaceae]].<ref>[http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=132688 Flora of North America: Thalictrum]</ref> The common name is '''meadow-rue'''. They are not related to the [[rue]]s (family [[Rutaceae]]).
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They are [[perennial plant|perennial]] [[herbaceous]] plants, growing to 0.5-2.5 m tall depending on the species. They are usually found in shaded or damp locations.
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The [[leaf|leaves]] are alternate, bipinnately compound, commonly glaucous blue-green in colour.
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The flowers are small and apetalous (no petals), but have numerous long [[stamen]]s, often brightly white, yellow, pink or pale purple, and are produced in conspicuous dense inflorescences. In some species (e.g. ''T. chelidonii, T. tuberosum''), the [[sepal]]s are large, brightly coloured and petal-like, but in most they are small and fall when the flower opens or soon after.
''Thalictrum'' is a [[Alpha taxonomy|taxonomically]] difficult genus with poorly understood species boundaries; it is in need of further taxonomic and field research for clarification.