Contains 2 accepted taxa overall.

Characteristics
Thaspium Nutt.
MEADOWPARSNIP
Classification
APIALES
Thaspium
Citation
THASPIUM Nuttall, Gen. N. Amer. Pl. 1: 196. 1818.
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TYPE: Thaspium atropurpureum (Lamarck) Nuttall (Smyrnium atropurpureum Lamarck) Lectotypified by PFeiffer, Nomencl. Bot. 2(2): 1388. 1874.
Species
Scientific Name Common Name Herbarium Specimens Status Photos
Thaspium barbinode HAIRYJOINT MEADOWPARSNIP Native UPL (NWPL)
Thaspium trifoliatum PURPLE MEADOWPARSNIP Native
[Family identification key]
1.  Cauline leaves 2- to 3-pinnately or ternately compound, blade margin coarsely toothed
1.  Cauline leaves 3-foliolate, blade margin evenly and finely toothed
Genus Synonyms
Synonym Full Citation Basionym Type
Upopion Upopion Rafinesque, New Fl. 4: 29. 1838 ("1836"). TYPE: Non designatus.