Bloodroot (Alternanthera ficoidea)

Description

Sanguinaria canadensis (bloodroot) is a perennial, herbaceous flowering plant native to eastern North America. It is the only species in the genus Sanguinaria, included in the family Papaveraceae, and most closely related to Eomecon of eastern Asia. Sanguinaria canadensis is also known as bloodwort, redroot, red puccoon, and sometimes pauson. It has also been known as tetterwort, although that name is also used to refer to Chelidonium majus. Plants are variable in leaf and flower shape and have in the past been separated out as different subspecies due to these variable shapes. Currently most taxonomic treatments include these different forms in one highly variable species. In bloodroot, the juice is red and poisonous Bloodroot grows from 20 to 50 cm (7.9 to 19.7 in) tall. It has one large basal leaf, up to 12 cm (4.7 in) across, with five to nine lobes. The leaves and flowers sprout from a reddish rhizome with bright orange sap that grows at or slightly below the soil surface. 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 expand to their full size and go summer dormant in mid to late summer. The flowers bloom from March to May depending on the region and weather. They have 8-12 delicate white petals and yellow stamens, and two sepals below the petals, which fall off after the flowers open. The flower stems are clasped by the leaves. The flowers are pollinated by small bees and flies. Seeds develop in green pods 40 to 60 mm (1.6 to 2.4 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. Bloodroot is native to eastern North America from Nova Scotia, Canada southward to Florida, United States, and west to Great Lakes and down the Mississippi embayment. Sanguinaria canadensis plants are found growing in moist to dry woods and thickets, often on floodplains and near shores or streams on slopes. They grow less frequently in clearings and meadows or on dunes, and are rarely found in disturbed sites. Deer will feed on the plants in early spring. Bloodroot produces benzylisoquinoline alkaloids, primarily the toxin sanguinarine. The alkaloids are transported to and stored in the rhizome. Sanguinarine kills animal cells by blocking the action of Na+/K+-ATPase transmembrane proteins. As a result, applying bloodroot to the skin may destroy tissue and lead to the formation of a large scab, called an eschar. Bloodroot and its extracts are thus considered escharotic. Although applying escharotic agents (including bloodroot) to the skin is sometimes suggested as a home treatment for skin cancer, these attempts can be severely disfiguring. Salves derived from bloodroot cannot be relied on to remove an entire malignant tumor. Microscopic tumor deposits may remain after visible tumor tissue is burned away, and case reports have shown that in such instances tumor has recurred and/or metastasized. Internal use is not recommended. An overdose of bloodroot extract can cause vomiting and loss of consciousness "“Pet poisonous” – Toxic parts: entire plant esp. stem, roots"