Here's another one I had found, and now that I look at it, it seems even more apt for something Marianne might have had in mind here.
This is from The Task Book I, The Sofa
No tree in all the grove but has its charms,
Though each its hue peculiar; paler some,
And of a wannish grey; the willow such,
And poplar, that with silver lines his leaf,
And ash far stretching his umbrageous arm;
Of deeper green the elm; and deeper still,
Lord of the woods, the long surviving oak.
Some glossy-leaved, and shining in the sun,
The maple, and the beech of oily nuts
Prolific, and the lime at dewy eve
Diffusing odours; nor unnoted pass
The sycamore, capricious in attire,
Now green, now tawny, and , ere autumn yet
Have changed the woods, in scarlet honours bright.
And then shortly after, it goes on with this, the best part:
Ye fallen avenues! once more I mourn
Your fate unmerited, once more rejoice
That yet a remnant of your race survives.
How airy and how light the graceful arch,
Yet awful as the consecrated roof
Re-echoing pious anthems! while beneath
The chequer’d earth seems restless as a flood
Brush’d by the wind. So sportive is the light
Shot through the boughs, it dances as they dance,
Shadow and sunshine intermingling quick,
And darkening and enlightening, as the leaves
Play wanton, every moment, every spot.