2 adverbs to describe how to grassy

Finding that the Murchison was leading us too much to the eastward, the object of the expedition being to reach the Gascoyne with as little delay as possible, we quitted the river on a north-north-east course for about eight miles over a tolerably grassy plain, in some parts open, with atriplex and samphire, and in others rather thickly studded with acacia and melaleuca.

Left the encampment at 8.0 a.m. and steering 200 degrees magnetic over alternately grassy and scrubby hills of granite sandstone, crossed the Chapman at 9.40.

2 adverbs to describe how to  grassy  - Adverbs for  grassy