Question

Which line in this excerpt from Amy Lowell's "Lilacs" emphasizes consonance?
Lilacs,
False blue,
White,
Purple,
Color of lilac,
Heart-leaves of lilac all over New England,
Roots of lilac under all the soil of New England,
Lilac in me because I am New England,
Because my roots are in it,
Because my leaves are of it,
Because my flowers are for it,
Because it is my country
And I speak to it of itself
And sing of it with my own voice
Since certainly it is mine.