Final answer:
The rhyme pattern in the poem forms complex patterns, with the first and third lines rhyming in subsequent stanzas. However, the relationship between meaning and word choice is the most important aspect to consider.
Step-by-step explanation:
In comparison to the Rossetti poem the rhyme sounds form complex patterns, don't they? While "was"/"grass" in the first stanza and "man"/"wan" in the second do not quite produce a full rhyme, the first and third lines do rhyme in subsequent stanzas. Using a letter of the alphabet to describe each new rhyme sound, we could describe the pattern like this: a b a b b c b c c.
This kind of formula is useful up to a point for showing how often the same sounds recur, and it does show how complicated the interweaving of echoing sounds is. But it says nothing about how the sounds relate to what is being said — and, as I have been arguing all along, it is the relationship between meaning and word choice that is of particular interest.