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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. = Thaspium trifoliolatum var. trifoliolatum — NE, misspelling; < Thaspium trifoliatum (L.) A.Gray — Fl7, G, Va, WH3. Basionym: Thapsia trifoliata L. 1753

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Heliophily ⓘ: 4

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image of plant© Gary P. Fleming | Original Image ⭷
image of plant© Paul Marcum source | Original Image ⭷
image of plant© Alan M. Cressler | Original Image ⭷
image of plant© Gary P. Fleming | Original Image ⭷
image of plant© Paul Marcum source | Original Image ⭷
image of plant© Alan M. Cressler | Original Image ⭷
image of plant© Alan Weakley source | Original Image ⭷

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Horticultural Information

NCBG trait

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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