Which figure of speech is used in this text?
Magnified apples appear and disappear,
Stem end and blossom end,
And every fleck of russet showing clear.
—Robert Frost, "After Apple-Picking"

 - anaphora
 - assonance
The text uses assonance, the repetition of a vowel sound in a series of nearby words.
The words stem, end, every, and fleck share a vowel sound.