姥桜[ubazakura] faded beauty
山姥[yamauba] mountain witch
姥捨て[ubasute] practice of abandoning old women (practise)
姥捨て山[ubasuteyama] mountain where old women were abandoned
姥貝[ubagai] Sakhalin surf clam (Pseudocardium sachalinense)

姥鮫[ubazame] basking shark (Cetorhinus maximus)
姥目樫[ubamegashi] ubame oak (Quercus phillyraeoides)
姥彼岸[ubahigan] double weeping rosebud cherry (Prunus pendula)
姥魚[ubauo] Aspasma minima (species of clingfish)

ムール貝[muurugai] moule
一枚貝[ichimaigai] univalve
烏貝[karasugai] cockscomb pearl mussel (Cristaria plicata)
貝ボタン[kaibotan] mother-of-pearl button
貝貨[baika] shell money

貝がら[kaigara] shell
貝柱[kaibashira] adductor muscle
貝毒[kaidoku] shellfish poison
貝類[kairui] shellfish