The leaves are glabrous and never glaucous. It has broadly ovate and somewhat glaucous leaves that are often deeply dissected. The name white ash derives from the glaucous undersides of the leaves. It has large fleshy glaucous collard-like leaves and abundant white flowers. Mature buds are oval, often glaucous, long and wide with a conical operculum. Mature plum fruit may have a dusty-white waxy coating that gives them a glaucous appearance. It is annual or biennial, herbaceous and glaucous. Glabrous surface is shiny and bright green, with a glaucous pale reverse. Some species have a glaucous white coating covering the underside of the leaves. They are green, often glaucous shoots are usually terete or triangular. Lear's macaw is similar to the larger hyacinth macaw and the slightly smaller glaucous macaw. The species name is derived from the Latin "glauca" "glaucous". Meadow-rue leaves are alternate, bipinnately compound, and commonly glaucous blue-green in colour. The leaves are needle-like, in bundles of three, glaucous gray-green, long and stout, thick. The leaves are needle-like, in bundles of three, stout, glaucous gray-green, long.