ASCLEPIADACEAE,  Milkweed Family

Herbs; juice usually milky; blades simple, entire; stipules minute; flowers hypogynous, perfect, clustered; sepals 5, separate or united at base: corolla regular, 5-lobed, with a corona; stamens 5, on corolla-base, united in a tube enclosing ovaries, anthers united with stigma. pollen of each pollen-sac a single waxy mass (pollinium), pollinium from left sac of one anther joined by a connective to pollinium from right sac of adjacent anther; carpels 2, ovaries and styles separate, common stigma large, usually 5-lobed or  -crenate; fruit an aggregate of 2 follicles, when ‘both ovaries develop; seeds usually comate.