Blue, blue is the grass about the river
And the willows have overfilled the close garden.
And within, the mistress, in the midmost of her youth,
White, white of face, hesitates, passing the door.
Slender, she puts forth a slender hand;
And she was a courtezan in the old days,
Pound had definitely read Herbert A. Giles’s  A History of Chinese Literature . 
 
 In it, the first lines of this poem are translated as follows: 
 Green grows the grass upon the bank, The willow-shoots are long and lank; A lady in a glistening gown Opens the casement and looks down… 
 They’re not bad lines, but read like a child’s doggrel when placed beside Pound’s, especially the “lady in a glistening gown” juxtaposed with “the mistress, in the midmost of her youth”. 
 Hugh Kenner (in  The Pound Era ) humorously remarks “it seems a fair guess that he now turned this up to verify that he had indeed reworked the same poem”.