Stenanthium densum aka Crow Poison

Stenanthium densum is a wildflower that lives for many years. It belongs to the Melanthiaceae family. Its names include crow-poison, death camas, and Osceola's plume. Its native range runs from the southeastern United States to eastern Texas. It grows in moist savannas, bogs, pine woods, and wet flatwoods. In North Carolina, it grows in the central and southern Coastal Plain. Zigadenus densus is another name for the same species.

This plant grows from a bulb and lives for years. It dies back to the ground in winter. Long, narrow green leaves grow from its base in spring. These simple leaves look like grass and have no hairs. They exceed 0.5 feet (0.15 metres) in length. Their width stays below 0.08 feet (0.025 metres). A straight, smooth stem rises above the leaves at the base. Only a few leaves grow along this stem. Flower stalks reach 3–5 feet (0.9–1.5 metres). They give the plant an upright form.

Flowers open from April to June, starting low on the stalk. More blooms open higher up among the close-set flowers. Each small flower looks like a star and has six petals. The flowers are white, though records also note green. Older blooms may turn rose-red or purple. They form a dense raceme, a plume-like group along the stalk. The flowers draw pollinators, which carry pollen between blooms. Dark brown seed cases, called capsules, follow from May to July. The show of flowers can stand out more after fire. The plant favors sites where planned burns help manage growth.

Grow this species in full sun or partial shade. It needs acid, sandy soil that drains well. Keep the soil moist; it also copes with wet spells. NC State lists USDA hardiness zones 8b through 11b. The plant suits native gardens and sites where it can spread. It also suits pollinator, rain, and water gardens. It spreads with ease in its native home. Plants for gardens may be hard to find. Grow new plants from seed or by dividing them. NC State rates its care needs as medium.

Poisoning is the main problem the supplied evidence reports. Leaves and bulbs can poison pets and grazing animals. The bulbs look like onions and can kill people who eat them. The roots are poisonous too. This plant is not safe to eat. Its toxins include zygacine, an alkaloid that disrupts how sodium channels work. Signs can include nausea, or feeling sick, and vomiting. Muscle spasms and an uneven heartbeat can also occur. Severe poisoning may cause coma or death. These risks matter where children, pets, or livestock can reach it. The evidence names no specific insect pests or diseases.