入れ木 is read as いれき (ireki) and means wood inlay.
いれき
ireki
にゅうごく
entry into a country
にゅうがく
admission (to a school or university)
にゅうきん
receipt of money
はいる
to be put in (of effort, spirit, feeling, etc.)
じゅすい
entering the water
いり
beginning
いれる
to cast (a vote)
いる
to (reach a state) completely
にゅうらい
august visit
にゅうこう
admission (to a school)
き
wooden clappers (signalling the beginning or end of a performance)
みずき
dogwood (Cornus controversa)