|Juunikiransou, or Ajuga x
mixta, is an interspecific hybrid between Ajuga nipponensis and
Ajuga decumbens; as is the case, hybridization with another species
within the same genus reportedly can occur relatively frequently in
various places. This hybrid species looks like Ajuga makinoi
in shape and color, but a significant difference lies in the form of
their perianth's upper lip. With A. makinoi, it sharply cuts
in, but in A. x mixta, it does not. Bloom time: April-May.