Trillium ovatum

Rhizomes semierect to horizontal, short, stout, praemorse. Scapes 1-2, round, 2-5 dm, ± slender, glabrous. Bracts sessile, subsessile, or short-petiolate; blade medium green, sometimes blotched and mottled, main veins prominent, ovate-rhombic, 7-12 × 5-20 cm, continuing to expand during anthesis, base rounded, apex acuminate. Flower erect or nodding, odorless; sepals spreading to horizontal, green, lanceolate to oblong-lanceolate, 15-50 × 6-20 mm, margins entire, apex acute; petals erect-ascending, usually wide-spreading from base, exposing entire pistil, white or with pink or blush markings, lacking V-shaped markings, fading to rosy pink, purple, or dark red, veins not deeply engraved, ± linear to widely obovate, 1.5-7 ×1-4 cm, widest at or above middle, thin-textured, margins flat to undulate, apex acuminate; stamens prominent, slightly recurved-spreading to straight, 10-18 mm; filaments white, shorter than anthers, slender; anthers yellow, 4-16 mm, slender, dehiscence latrorse-introrse; ovary green or white, ovoid, 6-angled, 5-12 mm, attachment ± 3/4 ovary width; stigmas recurved, barely connate basally, greenish white or white, linear, not lobed adaxially, 6-10 mm, uniformly thin; pedicel erect to leaning, 2-6 cm. Fruits baccate, green or white, ± odorless, broadly ovoid, obscurely winged, 1.2-2.8 × 0.7-1.9 cm, pulpy-moist. 2n = 10.