Trillium vaseyi


Biltmore Bot. Stud. 1: 24. 1901.

Common names: Sweet beth sweet trillium Vasey’s trillium
Synonyms: Trillium erectum var. vaseyi (Harbison) H. E. Ahles
Treatment appears in FNA Volume 26. Treatment on page 105. Mentioned on page 93, 103, 104.

Rhizomes short, stout, praemorse. Scapes 1–2 per rhizome terminus, round in cross section, 3–6.5 dm, ± slender to stout, glabrous. Bracts sessile to subsessile; blade rhombic, 10–20 × 6–20 cm, often wider than long, not glossy, base attenuate, apex acuminate. Flower carried beneath bracts, odor faintly sweet; sepals spreading, pale green, lanceolate-acuminate, 25–50 × 6–18 mm, margins involute, apex acuminate; petals spreading to recurved distally, adaxially crimson, maroon-red, or brownish red, abaxially paler, grayish pink or rose, veins engraved, ovate-suborbicular, 3–6.5 × 4–6 cm, somewhat fleshy, base rounded and overlapping, margins entire, apex acute; stamens conspicuous, ± erect to weakly recurved, 15–25 mm, longer than pistil at anthesis; filaments grayish purple to blackish purple, longer than anthers, 5–12 mm, slender; anthers weakly recurving, grayish purple to maroon, slender, dehiscence introrse; connectives purple, barely equaling anther sacs; ovary small, maroon or dark reddish purple, ± globose to conical-pyramidal, 6-ridged, 3–12 mm, basal attachment less than ovary width; stigmas erect, recurved, distinct, gray-purple, not lobed adaxially, basally widened, ± linear distally, 2.5–6.5 mm, fleshy; pedicel horizontal to declined-drooping, ± straight, 2–13 cm. Fruits dark reddish maroon, ovoid, obtusely angled, relatively small, 1–1.4 × 1–2 cm, pulpy. 2n = 10.

Phenology: Flowering mid–late spring (late Apr–early Jun).
Habitat: Rich woods, often on steep slopes, ravines, stream banks, and deep, wind-sheltered, moist coves
Elevation: 300–700 m


V26 117-distribution-map.jpg

Ala., Ga., N.C., S.C., Tenn.


Although sometimes submerged within Trillium erectum, T. vaseyi has a later blooming season, a nodding flower of much larger size, a sweet fragrance, and cove habitat unlike that of T. erectum. In my garden hybridization experiments, T. vaseyi hybrids have different color patterns than T. erectum hybrids. Trillium vaseyi is clearly a distinct species. It frequently hybridizes with T. rugelii.

Selected References


Lower Taxa

... more about "Trillium vaseyi"
Frederick W. Case Jr. +
Harbison +
Sweet beth +, sweet trillium +  and Vasey’s trillium +
Ala. +, Ga. +, N.C. +, S.C. +  and Tenn. +
300–700 m +
Rich woods, often on steep slopes, ravines, stream banks, and deep, wind-sheltered, moist coves +
Flowering mid–late spring (late Apr–early Jun). +
Biltmore Bot. Stud. +
Trillium erectum var. vaseyi +
Trillium vaseyi +
Trillium subg. Trillium +
species +