Bloodroot grows from 20 to 50 cm (8 to 20 in) tall. It has one large basal leaf, up to 25 cm (10 in) across, with five to seven lobes. The leaves and flowers sprout from a reddish rhizome with bright orange sap that grows at or slightly below the soil surface. The color of the sap is the reason for the genus name Sanguinaria, from Latin sanguinarius "bloody". The rhizomes grow longer each year, and branch to form colonies. Plants start to bloom before the foliage unfolds in early spring. After blooming the leaves unfurl to their full size and go summer dormant in mid to late summer, later than some other spring ephemerals. The flowers bloom from March to May depending on the region and weather. They have 8–12 delicate white petals, many yellow stamens, and two sepals below the petals, which fall off after the flowers open. Each flower stem is clasped by a leaf as it emerges from the ground. The flowers open when they are in sunlight. They are pollinated by small bees and flies. Seeds develop in green pods 4 to 6 cm (1 1𔊪 to 2 1𔊬 in) long, and ripen before the foliage goes dormant. The seeds are round and black to orange-red when ripe, and have white elaiosomes, which are eaten by ants. Learn more about Bloodroot