Kentucky Plant Atlas




  
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Asteraceae <Anthemideae> Tripleurospermum [Matricaria] inodorum (perforatum; maritimum* var. i.)
Tripleurospermum inodorum (L.) Sch. Bip.
ALI: EU HAB: G-10?, ::::, D?, 6 ABU: n/a, n/a, 4
This annual weed is widely scattered along roadsides in eastern states, but there is only one old record from Ky. (B at US). The closely related T. maritimum (L.) W.D.J. Koch is usually perennial and has a more northern (circumboreal) range, especially near coasts; 2n = 18 and 36 in both taxa (FNA 19). The two taxa have been combined as varieties by some authors.