Contains 2 accepted taxa overall.

Characteristics
Tiedemannia DC.
Classification
APIALES
Tiedemannia
Citation
TIEDEMANNIA de Candolle, Coll. Mém. 5: 51. 1829.
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TYPE: Tiedemannia teretifolia de Candolle 1829, nom. illegit. (Oenanthe filiformis Walter 1788; Tiedemannia filiformis (Walter) Feist & S. R. Downie 2012.)
Distribution Map Present

This species have been reported in the counties highlighted.

Species
Scientific Name Common Name Herbarium Specimens Status Photos
Tiedemannia filiformis subsp. filiformis WATER COWBANE Native OBL (NWPL) OBL (DEP)
Tiedemannia filiformis subsp. greenmanii GIANT WATER COWBANE; GIANT WATER-DROPWORT Native Rare-State OBL (NWPL) OBL (DEP)
Identification Key
1.  Phyllodes inconspicuously septate, joints not brittle; petals white
1.  Phyllodes conspicuously septate, joints brittle and easily broken; petals garnet-maroon
Genus Synonyms
Synonym Full Citation Basionym Type