姥 - old woman

ubame oak (Quercus phillyraeoides)

faded beauty

mountain witch; yamauba

mountain where old people were abandoned (according to legend)

Sakhalin surf clam (Pseudocardium sachalinense)

elderly woman

uba lily (Cardiocrinum cordatum)

(Japanese) Darby and Joan

basking shark (Cetorhinus maximus)

Aspasma minima (species of clingfish)

practice of abandoning old people, usu. women

double weeping rosebud cherry (Prunus pendula)