Key for Drymonia Mart.

1	Leaves of a pair strongly unequal Drymonia psilocalyx
1'	Leaves of a pair subequal 2
2	Bracts lacking (flowers solitary or 1-3) Drymonia serrulata
2'	Bracts present 3
3	Bracts white, spotted with red, smaller than calyx lobes Drymonia antherocycla
3'	Bracts pink to dark red, larger than calyx lobes Drymonia coccinea