Osmorhiza aristata

Osmorhiza aristata is a perennial in the Apiaceae family. Kew places its native range in temperate Asia. Plants For A Future lists records across much of Asia. These include Russia, China, Korea, Japan, and Taiwan. Its range also reaches parts of the Himalayas. The RHS records it as not native to Britain or Ireland. Some botanists split this variable species into several species.

The plant grows to about 2 feet [0.6 metres] tall. It lives in woods on hills and low mountains in Japan. In China, it grows in forests on mountain slopes. It also occurs in grassy places beside streams. Chinese records cover elevations of 820–3,675 feet [250–1,120 metres]. These habitats place it among woodland and streamside plants. The supplied sources give no mature width or detailed leaf description.

Flowers appear from May through July, according to Plants For A Future. Each flower has both male and female organs. Insects pollinate the flowers, and the plant is self-fertile. Seeds ripen during June and July. The sources do not describe flower colour or fruit shape. They list the plant among scented plants. Its roots also have an aroma, though the evidence gives no scent description.

Plants For A Future lists moist soil as its preference. It accepts sandy, loamy, and clay soils. It also tolerates mildly acid, neutral, and mildly alkaline conditions. The species entry lists both light shade and full sun. Listed garden settings include beds, woodland edges, and dappled shade. However, the source says its fuller growing notes concern the genus. It has little direct information about this species in cultivation. British hardiness remains unconfirmed, despite a favourable guess from its range. No firm hardiness zone follows from that assessment.

Plants For A Future gives its food value three out of five. The roots may be eaten raw or cooked. One recorded use involves peeling them before eating them raw. Young plants and young leafstalks may be cooked. The stalks may go into soups or be boiled. Leaves also appear in its list of edible parts. The source reports no known hazards, but this does not establish pet safety. It lists no known medicinal or other uses. It also records no weed potential. The supplied evidence gives no specific pests or diseases.