欧当归属 ou dang gui shu

Pan Zehui (潘泽惠); Mark F. Watson

Hipposelinum Britton & Rose.

Herbs perennial, stout. Leaves 2–3-pinnate. Umbels compound, terminal and lateral; bracts and bracteoles several. Calyx teeth obsolete. Petals yellowish green to yellow, elliptic, apex incurved. Fruit ellipsoid, slightly flattened dorsally; dorsal ribs obtusely prominent, lateral ribs narrowly thick-winged; vittae 1 in each furrow, 2 on commissure. Seed face plane. Carpophore 2-cleft to base.

Three species: Afghanistan, SW Asia, Europe, North America; one species (introduced) in China.

Lower Taxon

• Levisticum officinale W. D. J. Koch