Trillium albidum |
Trillium gracile |
|
---|---|---|
giant trillium, giant white wakerobin, sessile trillium, smallflower trillium, white toadshade |
graceful trillium, Sabine River wakerobin, slender trillium |
|
Rhizomes | horizontal, ± erect, brown, superficially bulblike, short, thick, not brittle. |
horizontal, brownish, thick, short, praemorse, not brittle. |
Scapes | often several from same rhizome terminus, round in cross section, 2.2–5.8 dm, stout. |
1–3, round in cross section, 1.6–3.5 dm, slender, glabrous. |
Bracts | held well above ground, sessile; blade weakly mottled with scattered, darker green spots, mottling often fading later in season, broadly ovate, 10–20 × 12–15 cm, not glossy, base rounded, apex obtuse. |
held well above ground, sessile; blade mottled with darker green blotches, mottling becoming obscure with age, elliptic-ovate to obovate, 6–8.5 × 2.6–4 cm, base rounded, apex obtuse or rounded, rarely acute. |
Flower | borne directly upon bracts, erect, fragrance roselike; sepals conspicuous, spreading, displayed above bracts, pale green, lanceolate, 30–65 × 12–15 mm, margins entire, apex acute; petals long-lasting, usually erect or slightly spreading, ± connivent, ± concealing stamens and ovary basally, white to creamy white, rarely soft pinkish rose near base, veins prominent but not engraved, not spirally twisted, obovate, more lanceolate in young plants, 4.8–8 × 2.2–3 cm, widest at or just above middle, ± thick-textured, base cuneate, margins entire, ± flat, apex rounded to acute; stamens erect, greenish white, 15–25 mm; filaments whitish green, 3–4 mm, slender; anthers erect, straight, yellow, 11–20 mm, dehiscence latrorse; connectives straight, extended ca. 1 mm beyond anther sacs, rounded; ovary green or occasionally purple, ovoid, rounded 6-gonal, 6–11 mm; stigmas erect to spreading, distinct, sessile, subulate, 4–7 mm, thin distally. |
odor musty or funguslike; sepals displayed above bracts, bases at right angle to scape axis, widely spreading with recurved tips, dark purple on adaxial surface, lanceolate to oblong, 20–25 × 4–5 mm, margins entire, apex obtuse; petals long-lasting, erect, weakly connivent, at least partially obscuring stamens, dark purple or maroon, rarely yellow, not spirally twisted, linear-elliptic to oblanceolate, 2–4 × 0.3–0.8 cm, ± thick-textured, margins entire, flat, apex acute; stamens erect, 12–16.5 mm; filaments purple, 2–3 mm, slender; anthers erect, straight, purple to yellow, 10–15 mm, slender, dehiscence introrse; connectives straight, extending 0.1–1 mm beyond anther sacs; ovary purple, ovoid, 3-angled, 4–11 mm; stigmas erect, spreading-recurved, distinct, purple to whitish, sessile, subulate, 2–4 mm, fleshy, thickened basally. |
Fruits | green or purplish green, fragrance unknown, ovoid to globose, pulpy, juicy. |
dark greenish purple, fragrance not reported, ovoid, swollen enough to conceal its 3-angled nature, 1 cm, pulpy, moist. |
Trillium albidum |
Trillium gracile |
|
Phenology | Flowering spring (mid Mar–late Apr). | Flowering spring (early–mid Apr). |
Habitat | Moist slopes in rich mixed deciduous-coniferous forests or coniferous stands, brushy thickets on flats, open fields, pastures, and fencerows, dense second-growth coniferous forests, floodplains along streams and larger rivers | Mature pine and hardwood forests, banks and ridges of dissected stream- beds, rather dense shade, low sandy flatwoods |
Elevation | 100–200 m (300–700 ft) | 0–10 m (0–0 ft) |
Distribution |
CA; OR
|
LA; TX
|
Source | FNA vol. 26, p. 106. | FNA vol. 26, p. 110. |
Parent taxa | Liliaceae > Trillium > subg. Phyllantherum | Liliaceae > Trillium > subg. Phyllantherum |
Sibling taxa | ||
Name authority | J. D. Freeman: Brittonia 27: 48, fig. 11. (1975) | J. D. Freeman: Sida 3: 289. (1969) |
Web links |