Dill (Anethum graveolens) is also known as Lao coriander. It grows to 40–60 cm (16–24 in), with slender stems and alternate, finely divided, softly delicate leaves 10–20 cm (3.9–7.9 in) long. The ultimate leaf divisions are 1–2 mm (0.039–0.079 in) broad, slightly broader than the similar leaves of fennel, which are threadlike, less than 1 mm (0.039 in) broad, but harder in texture. The flowers are white to yellow, in small umbels 2–9 cm (0.79–3.5 in) diameter. The seeds are 4–5 mm (0.16–0.20 in) long and 1 mm (0.039 in) thick, and straight to slightly curve with a longitudinally ridged surface. Fresh and dried dill leaves are used as herbs in food preparations.