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One plant produces about 2,000 fruits in a season, and the seeds remain viable in the soil for 3 - 4 years. Wild Parsnip is considered a biennial or monocarpic perennial: it spends one or more years as a basal rosete before flowering, seting seed and dying.
Life cycle: Biennial. Native status: Introduced to N. America by early European settlers. Habitat: Pastures, roadsides. General description: Forms basal rosette during first year and then erect flower stalk up to 5 ft high in second year. Inflorescence is a flat-topped umbel that are 3-8” wide. Flowers are yellow.
Wild parsnip, introduced by early settlers as a cultivated food source, is a classic biennial meaning within two years the plant completes its life cycle (germination, flowering, seed production) before dying. Year one produces a leafy rosette that supplies the underground root with energy.
Wild parsnip occurs throughout Ontario in abandoned yards, waste places, meadows, old fields, roadsides and railway embankments. It is very similar to the cultivated parsnip and some stands may merely be the cultivated parsnip which escaped or persisted from earlier plantings. Distinguishing Features
Wild Parsnip is most often found in areas exposed to full sun, although it can grow in the semi-shade of forests and riverbanks. It is tolerant of a variety of soils, but cannot survive in flooded environments.
Like its relative the carrot, wild parsnip produces a rosette of large, grooved, upright leaves and stores reserves in a large, fleshy taproot during the first year. A hollow flowering stem whose leaves are much smaller is sent up from the center of the rosette in a subse-quent growth season.
Wild parsnip, which is also known as poison parsnip, is a member of the carrot/parsley family. It typically grows a low, spindly rosette of leaves in the first year while the root develops. In the second year it flowers on a tall stalk and then dies.
