revolute

Branchlets 2-edged; leaves opposite, nearly sessile, oblong, white-glaucous beneath, with revolute margins; corymbs terminal, few-flowered, smooth; bracts large; flowers ½´ broad, lilac-purple; pod ovoid, smooth.—Cold peat-bogs and mountains, Newf. to Penn., Minn., and northward.

From The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee by Asa Gray

The cap has a smooth, not polished, surface, and is very irregular, revolute, and deflexed, not honeycombed like the Morel, nor showing the brain-like convolutions of the Gyromitras.

From Student's Hand-book of Mushrooms of America, Edible and Poisonous by Thomas Taylor

Slightly tomentose or glabrate, leafy, 1–2° high; divisions of the leaves narrowly linear or filiform, revolute; involucral scales obovate-oblong; achenes long-villous.—Neb. to Ark. and Tex.

From The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee by Asa Gray

Stems 6–12´ high; silky-tomentose throughout; leaflets deeply pinnatifid, the margins of the narrow lobes revolute; cyme short and close.—Minn. and westward.

From The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee by Asa Gray

Cap with border revolute, i. e., rolled backward.

From Student's Hand-book of Mushrooms of America, Edible and Poisonous by Thomas Taylor