Flora of North America species comparison

horizontal, brownish, short, thick, praemorse, not brittle.

horizontal, brownish, thick, praemorse, not brittle.

1–3, round in cross section, 1.5–3 dm, slender to stout, pilose-pubescent, rarely glabrous.

1–3, green or bronze-green, round in cross section, 1.7–4.4 dm, stout, glabrous.

held well above ground, sessile;

blade light silvery or bluish green with strong to faint mottling in darker colors, mottling becoming obscure with age, ovate-lanceolate to broadly ovate, 6.3–7.6 × 3.3–5 cm, larger bracts abaxially pilose-pubescent, margins entire, apex acute.

held horizontally, not drooping, tips at anthesis held well above ground, sessile;

blade usually very strongly marked with at least 3 shades of dark green, bronze green, and purplish green, often with light central strip, mottling becoming obscure with age, ovate-lanceolate to lanceolate, widest at ca. 1/3 of length from basal attachment, tapered very gradually to tip, 8–17+ × 4.9–8.5 cm, rounded basally, margins of distal 1/3 straight, apex acute.

erect, odor strong, of carrion;

sepals displayed above bracts, spreading to ± horizontal position, green, purple markings adaxially, lanceolate-elliptic, 17–40 mm, margins entire, purple, apex acuminate;

petals long-lasting, spreading and carried in ± horizontal position unlike any other sessile trillium, very deep maroon to blackish red, rarely yellow, purple-streaked, with 1–2 spiral twists, narrowly elliptic to lanceolate or linear, narrow, 1.5–3.8 × 0.3–0.6 cm, rarely broader, thick-textured, margins entire, apex sharply acute to rounded, tips incurving slightly;

stamens fully exposed, somewhat stiffly erect, dark purple, 16–24 mm, thick;

filaments dark purple, 2–4 mm, basally dilated;

anthers erect, straight, dark purple, 13–18 mm, thick, dehiscence extrorse;

connectives dark purple, straight, coarse, flat, ± not extended beyond anther sacs;

ovary dark purple, oval, 6-angled, 5–7 mm;

stigmas erect, widely spreading, often strongly recurved or recoiled, distinct, purple, linear, 4–10 mm, slightly thickened basally.

faintly ill-scented;

sepals divergent-ascending, streaked with green to maroon, lanceolate to ovate-lanceolate, 36–68 × 12–21 mm, margins entire, flat or slightly raised adaxially, apex acute;

petals long-lasting, erect, ± connivent, ± partially concealing stamens and ovary, maroon-purple, brownish purple to brown, greenish streaked to green, rarely yellow, becoming brown, or occasionally bright copper-bronze with age, not spirally twisted, veins not engraved, obovate to oblanceolate, large in proportion to leaf size compared to many species, 5–9 × 1–2 cm, 2+ times longer than wide, widest at or just above middle, thick-textured, margins entire, flat, apex acute, obtuse, or rounded;

stamens erect or incurving, 12–24 mm;

filaments yellow, 2–3 mm;

anthers erect, straight, rarely arcuate, yellow, 10–15 mm, dehiscence latrorse;

connectives straight, projecting 1–2 mm beyond anther sacs;

ovary dark red, brown, or gray, ellipsoid, strongly 6-angled, 6–13 mm;

stigmas basally erect, tips recoiled upon ovary, distinct, green, white, or purple, linear, short, 3–12 mm, slightly thickened basally, not fleshy.

baccate, purple, odorless, ovoid, strongly 6-angled, sometimes winged, 2 × 1–1.5 cm, pulpy, moist.

baccate, dark green to purple, odor not reported, ellipsoid, strongly grooved and ridged, pulpy or mealy.

= 10.

= 10.