"A boy came by the house today,/he asked for food./He couldn't pay anything, but Ma set him down/and gave him biscuits/and milk./...We watched him walk away/down the road,/in a pair of Daddy's mended overalls,/his legs like willow limbs,/his arms like reeds" (Hesse 58-59).
What is the meaning of the simile, "his legs like willow limbs,/his arms like reeds," as it is used in the excerpt of the poem?