Contains 4 accepted taxa overall.

Characteristics
Thalictrum L.
MEADOWRUE
Classification
RANUNCULALES
Thalictrum
Citation
THALICTRUM Linnaeus, Sp. Pl. 545. 1753, nom. cons.
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TYPE: Thalictrum foetidum Linnaeus, typ. cons.
Species
Scientific Name Common Name Herbarium Specimens Status Photos
Thalictrum cooleyi COOLEY'S MEADOWRUE Native Endangered-State Endangered-US FACW (NWPL) FACW (DEP)
Thalictrum macrostylum PIEDMONT MEADOWRUE Native FACW (NWPL) FACW (DEP)
Thalictrum revolutum WAXYLEAF MEADOWRUE Native FAC (NWPL) FACW (DEP)
Thalictrum thalictroides RUE ANEMONE Native Endangered-State FACU (NWPL) FACW (DEP)
[Family identification key]
1.  Plant to 30 cm tall; flowers solitary or in umbels, bisexual
1.  Plant 40-200 cm tall; flowers in racemes or panicles, unisexual or unisexual and bisexual
2
2.  Leaflets linear to narrowly lanceolate or oblanceolate, (2.6–)4–26 times longer than wide
2.  Leaflets nearly orbiculate, ovate, lanceolate to obovate, usually less than 4 times longer than wide
2
3.  Leaflet chartaceous to subcoriaceous, margins sometimes revolute (except the lobes), the underside glabrous; achenes short stipitate to sessile, glabrous to pubescent; sepals 1-2 mm long; anthers 0.5-1.2 mm long; stigma 0.6-1.7 mm long
3.  Leaflet coriaceous with strongly revolute margins, the underside stipitate-glandular (or occasionally muricate or whitened papillose, rarely pubescent otherwise); achenes more or less sessile, often stipitate-glandular; sepals 3-4 mm long; anthers 1.5-2.8 mm long; stigma 2-3.5 mm long
Genus Synonyms
Synonym Full Citation Basionym Type
Anemonella Anemonella Spach, Hist. Nat. Vég. 7: 239. 1839. TYPE: Anemonella thalictroides (Linnaeus) Spach (Anemone thalictroides Linnaeus)
Leucocoma Leucocoma (Greene) Nieuwland, Amer. Midl. Naturalist 3: 254. 1914. BASIONYM: Thalictrum Linnaeus, subg. Leucocoma Greene, Leafl. Bot. Observ. Crit. 2: 55. 1910. TYPE: Leucocoma canadensis (Miller) Nieuwland (Thalictrum canadense Miller)
Physocarpum Physocarpum (de Candolle) Berchtold & J. Presl, Prir. Rostlin 1(Ranunc.): 14. 1824. BASIONYM: Thalictrum Linnaeus, sect. Physocarpum de Candolle, Syst. Nat. 1: 169, 171. 1817. TYPE: Non designatus.
Sumnera Sumnera Nieuwland, Amer. Midl. Naturalist 3: 254. 1914. TYPE: = Physocarpum (de Candolle) Berchtold & J. Presl 1823.
Syndesmon Syndesmon (Hoffmannsegg ex Endlicher) Britton, Ann. New York Acad. Sci. 6: 237. 1891. BASIONYM: Thalictrum Linnaeus, sect. Syndesmon Hoffmannsegg ex Endlicher, Gen. Pl. 845. 1839. TYPE: = Anemonella Spach 1839.
Tripterium Tripterium (de Candolle) Berchtold & J. Presl, Prir. Rostlin 1(Ranunc.): 14. 1824. BASIONYM: Thalictrum Linnaeus, sect. Tripterium de Candolle, Syst. Nat. 1: 169. 1817. TYPE: Non designatus.