Dipsaceae
An order of biennial or perennial herbs, natives of nearly all temperate countries. Flowers in heads, surrounded by an involucre; calyx limb superior, cup-shaped, entire, lobed, or ciliate, membranous, sometimes surrounded by a separate involucel; corolla funnel-shaped or cy1indric, often curved; lobes four or five, obtuse, imbricate in bud; stamens four, inserted on the corolla tube. Leaves opposite or rarely verticillate, exstipulate. There are five known genera, including Cephalaria, Dipsacus, and Scabiosa, and about 125 species.