Thaspium trifoliatum (Linnaeus) A. Gray var. trifoliatum . Common name: Purple Meadow-parsnip. Phenology: Apr-May; Jul-Aug. Habitat: Moist forests. Distribution: NJ, PA, and MO, south to Panhandle FL and LA.
Origin/Endemic status: Endemic
Synonymy ⓘ: = Ar, C, F, Il, K4, MC, Mo2, Pa, RAB, S, S13, Tn, W, WV, Cooperrider (1985), Coulter & Rose (1900); Thapsia trifoliata L. — (basionym); = Thaspium trifoliolatum var. trifoliolatum — NE, misspelling; < Thaspium trifoliatum (L.) A.Gray — Fl7, G, Va, WH3
Heliophily ⓘ: 4
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Horticultural Information
Intro: Erect perennial of moist to dry upland forests and clearings.
Stems: Stems slender, occasionally branched, often purple tinged, smooth.
Leaves: Basal leaves on petioles with a sheathing base, heart-shaped, 1-4 in. long, toothed; stem leaves alternate, also petiolate, ternately or pinnately divided into 3-5 leaflets that are oval to lance-shaped, toothed and smooth.
Inforescence:
Flowers: Flowers in compound terminal umbels 1-3 in. wide, each with 6-12 stalked umbellets. Flowers maroon red, tiny, consisting of 5 petals, a short green to purplish-green calyx with 5 lobes, 5 stamens and a 2-celled ovary with a pair of styles.
Fruits: Fruit a joined pair of elliptic, winged seeds.
Comments:
Height: 1-3 ft.
plant sale text:
bloom table text:
description: Erect perennial of moist to dry upland forests and clearings.
stems: Stems slender, occasionally branched, often purple tinged, smooth.
leaves: Basal leaves on petioles with a sheathing base, heart-shaped, 1-4 in. long, toothed; stem leaves alternate, also petiolate, ternately or pinnately divided into 3-5 leaflets that are oval to lance-shaped, toothed and smooth.
inflorescence:
flowers: Flowers in compound terminal umbels 1-3 in. wide, each with 6-12 stalked umbellets. Flowers maroon red, tiny, consisting of 5 petals, a short green to purplish-green calyx with 5 lobes, 5 stamens and a 2-celled ovary with a pair of styles.
fruits: Fruit a joined pair of elliptic, winged seeds.
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