A grass or sedge with compact rounded flowering heads.
〈主澳〉纽扣草
a large tufted sedge (Gymnoschoenus spaerocephalus, family Cyperaceae).
an annual grass (Dactyloctenium radulans, family Gramineae).
Example sentencesExamples
I've often looked at what we call wombat lawns here where the wombats nibble down all the shrubbery in the button grass plain and if I look at the wombat scats you can find fragments of lichens there.
I drove through the Tarkine area and it includes large tracts of button grass and sparsely forested land, areas that loggers aren't that interested in (which I think helps to explain Kate's statistic of 89% being safe from logging).
But much of this land was of little use to loggers - huge dams, coastal reserves, button grass and scree.
Button grass is generally a short-lived annual and is not frost tolerant, but can be a short-lived perennial.
Day four was another early rise for the teams with a 22 km leg planned along the beach, through button grass planes, coastal headlands, and an ever-present bog.