Rustumite Plants

There was a reference to grass on Rustum in Orbit Unlimited. Poul Anderson usually describes equivalents of grass on terrestroid planets, e.g., see "Yet Another Grass Equivalent" here and "Ancestral Grass" here. Sure enough, on Rustum:

"Tall, finely fronded blue-green stalks - plants of that varied and ubiquituous family which the colonists misnamed 'grass'..."
-Poul Anderson, "My Own, My Native Land" IN Anderson, New America (New York, 1982), pp. 9-50 AT p. 29.

Anderson also lists Rustumite trees:

goldwood
soartop
fakepine
gnome

Exercise: compare these with Avalonian trees whose names and descriptions can be sought here.