Children (12 direct children, 15 direct and indirect children):
Oxypolis canbyi
Canby's cowbane
Oxypolis occidentalis
Western cowbane
Oxypolis denticulata
Oxypolis fendleri
Fendler's cowbane
Oxypolis filiformis
(tree size 2)
Water cowbane
Oxypolis ternata
Piedmont cowbane
Oxypolis greenmannii
Oxypolis rigidior
(tree size 1)
Stiff cowbane
Oxypolis greenmanii
Oxypolis longifolia
Oxypolis bakeri
Oxypolis turgida