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Trillium grandiflorum (Michaux) Salisbury. Subgenus: Callipetalon. Common name: Large-flowered Trillium, White Trillium, Great White Trillium. Phenology: Apr-May; Jul-Aug. Habitat: Rich coves and mesic slopes, also less typically on ridges over "rich" rock types. Distribution: S. QC, s. ON, MI, and MN, south to NJ, c. NC, nw. SC, n. GA, n. AL, s. IL, and IA.

ID notes: Petals white to pink.

Origin/Endemic status: Native

Synonymy ⓘ: = C, Can, F, FNA26, G, Il, K4, Mi, NE, NS, NY, Pa, POWO, RAB, S, S13, Tat, Tn, Va, W, WV, Case & Case (1997), Patrick (1986), Patrick (2007). Basionym: Trillium rhomboideum Michx. var. grandiflorum Michx. 1803

Links to other floras: = Trillium grandiflorum - FNA26

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Heliophily ⓘ: 2

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image of plant© Alan M. Cressler | Original Image ⭷
image of plant© Scott Ward | Original Image ⭷
image of plant© Scott Ward | Original Image ⭷
image of plant© Erik Danielson source | Original Image ⭷
image of plant© Will Stuart | Original Image ⭷
image of plant© Grant Morrow Parkins | Original Image ⭷
image of plant© Scott Ward | Original Image ⭷
image of plant© Scott Ward | Original Image ⭷

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Horticultural Information

NCBG trait

Intro: Erect perennial of rich coves and moist slopes; also less typically on ridges over rich rock types.

Stems: Stems stout, unbranched, pale green to pale reddish-green, smooth.

Leaves: Leaves 3 in a whorl at top of stem, sessile to short-petiolate, broadly oval, 2 1/2-6 1/2 in. long, smooth.

Inforescence:

Flowers: Flower solitary on an ascending stalk to 4 in. long, emerging from center of leaf whorl; waxy-white and turning pink with age; about 3 in. wide; widely funnel-shaped; consisting of 3 spreading elliptic petals that overlap at the base, 3 green narrow sepals, 6 straight yellow anthers and a white ovary.

Fruits: Fruit a pale green, oval berry-like capsule.

Comments:

Height: 6-20 in.

plant sale text:

bloom table text:

description: Erect perennial of rich coves and moist slopes; also less typically on ridges over rich rock types.

stems: Stems stout, unbranched, pale green to pale reddish-green, smooth.

leaves: Leaves 3 in a whorl at top of stem, sessile to short-petiolate, broadly oval, 2 1/2-6 1/2 in. long, smooth.

inflorescence:

flowers: Flower solitary on an ascending stalk to 4 in. long, emerging from center of leaf whorl; waxy-white and turning pink with age; about 3 in. wide; widely funnel-shaped; consisting of 3 spreading elliptic petals that overlap at the base, 3 green narrow sepals, 6 straight yellow anthers and a white ovary.

fruits: Fruit a pale green, oval berry-like capsule.

comments:

cultural notes:

germination code:

native range: eastern North America



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