: A specialized structure consisting of a pale green, hood-like spathe enclosing a purple, rod-shaped spadix . It blooms from April to May.
: While poisonous to humans and livestock, birds like blackbirds and thrushes readily eat the berries to disperse seeds. Safety and Toxicity
: Ethnobotanical records from places like Bulgaria and Turkey mention its use for treating hemorrhoids and purulent infections, though WebMD warns there is no scientific evidence to support these uses and the plant is likely unsafe.
: Large, glossy, and arrow-shaped (3–11 inches long). They often feature distinctive dark purplish-black spots —the basis of its scientific name maculatum —though these spots are not always present.
: It is frequently mistaken for wild garlic (Ramsons) or sorrel . Unlike garlic, Arum leaves have a "border vein" running just inside the edge and do not smell like onions when crushed. Traditional and Modern Uses
: Grows from an underground tuber or rhizome, which can be found as deep as 400mm below ground in mature specimens. Ecological & Biological Behavior
: In Britain, the roasted and ground roots were historically used to produce "Portland Sago," a starch substitute, as heat can neutralize some toxins.
: The plant is "thermogenic," meaning it generates heat and emits a foul, dung-like odor to attract flies (specifically Psychoda phalaenoides ) for pollination.

