Apium crispum Mill.
Apium petroselinum L.
Parsley, or Garden Parsley for precision (Petroselinum crispum) is a species of Petroselinum in the family Apiaceae, native to the central Mediterranean region (southern Italy, Algeria and Tunisia), naturalised elsewhere in Europe, and widely cultivated as a herb, a spice and a vegetable.
Garden Parsley is a bright green hairless biennial herbaceous plant. In the first year, it forms a rosette of tripinnate leaves 10–25 cm long with numerous 1–3 cm leaflets, and a tap root used as a food store over the winter. In the second year it grows a flowering stem to 75 cm tall with sparser leaves and flat-topped 3–10 cm diameter umbels with numerous 2 mm diameter yellow to yellowish-green flowers. The seeds are ovoid, 2–3mm long, with prominent style remnants at the apex. The plant normally dies after seed maturation.
Parsley grows best in moist, well drained soil, with full sun. It grows best between 22–30 °C, and is usually grown from seed. Germination is slow, taking four to six weeks, and often difficult because of Furanocoumarins in its seed coat. Plants grown for the leaf crop are typically spaced 10 cm apart, while those grown as a root crop are typically spaced 20 cm apart to allow for the root development.
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