Children (12 direct children, 22 direct and indirect children):
Thaspium barbinode
(tree size 3)
Hairyjoint meadowparsnip
Thaspium chapmanii
Thaspium cordatum
(tree size 1)
Thaspium pinnatifidum
Cutleaf meadowparsnip
Thaspium trifoliatum
(tree size 5)
Purple meadowparsnip
Thaspium trachypleurum
Thaspium montanum
(tree size 1)
Thaspium trifoliolatum
Thaspium sylvaticum
Thaspium foliosum
Thaspium actaeifolium
Thaspium atropurpureum