Leaf margin entire

Leaf margin entire (0) or serrulate to serrate (1). Entire margins occur only in a few taxa of the Ptychomniaceae. 

Description Herbaceous biennial or perennial. Stems 60-140 cm tall, branching above. Basal leaves lanceolate, up to 40 cm long, margins entire lower leaves sessile, 15-30 cm long, 4-5 cm wide, pinnatifid towards leaf base uppermost leaves smaller, becoming lanceolate or linear, sometimes pinnatisect. Inflorescences nearly spherical heads involucral bracts awn-like, stiff, prickly. Corolla tubular, 4-lobed, bright blue, pubescent on the outside, each with a stiff green bract. Fruits 4-sided achenes. 

J) Margin of Leaf.—Entire, when the margin is an even line. Example Belladonna. 

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