Is the poem recited in Orache one of Nabokov's, or from somewhere else - I can't seem to find it anywhere else.

"( ... along a narrow margin overgrown

with clover ... or ache ...)"

"... with clover and with clinging orache"

Apollon Maykov’s poem Niva (“The Cornfield,” 1856) begins as follows:

По ниве прохожу я узкою межой,
Поросшей кашкою и цепкой лебедой.

I walk along a cornfield’s narrow margin

Overgrown with clover and with clinging orach.

Alexey Sklyarenko