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Trillium stamineum Harbison
PROPELLER TOAD SHADE
Blue Ridge wakerobin; Twisted Trillium

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Trillium stamineum, inflorescence - frontal view of flower
© Copyright Steve Baskauf, 2002-2011 · 4
Trillium stamineum, inflorescence - frontal view of flower

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Trillium stamineum, inflorescence - lateral view of flower
© Copyright Steve Baskauf, 2002-2011 · 4
Trillium stamineum, inflorescence - lateral view of flower
Trillium stamineum, whole plant - in flower - general view
© Copyright Steve Baskauf, 2002-2011 · 4
Trillium stamineum, whole plant - in flower - general view

Trillium stamineum, leaf - basal or on lower stem
© Copyright Steve Baskauf, 2002-2011 · 4
Trillium stamineum, leaf - basal or on lower stem
Trillium stamineum, stem - showing leaf bases
© Copyright Steve Baskauf, 2002-2011 · 4
Trillium stamineum, stem - showing leaf bases

Trillium stamineum, pollen
© Copyright UDEL Pollen 2014 · 1
Trillium stamineum, pollen
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Following modified from Plants Database, United States Department of Agriculture
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Following modified from Flora of North America
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FNA Vol. 26 Page 95, 106, 114, 115 Login | eFloras Home | Help
FNA | Family List | FNA Vol. 26 | Liliaceae | Trillium

35. Trillium stamineum Harbison, Biltmore Bot. Stud. 1: 23. 1901.

Twisted trillium

Rhizomes horizontal, brownish, short, thick, praemorse, not brittle. Scapes 1—3, round in cross section, 1.5—3 dm, slender to stout, pilose-pubescent, rarely glabrous. Bracts 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. Flower 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. Fruits baccate, purple, odorless, ovoid, strongly 6-angled, sometimes winged, 2 × 1—1.5 cm, pulpy, moist. 2n = 10.

Flowering spring (late Mar--mid May). Dry, upland woods of deciduous trees, deciduous forest mixed with pines, soil on limestone outcroppings, mesic woods, sandy flats along medium streams, steep wooded slopes, banks of rivers; 50--200 m; Ala., Miss., Tenn.

Updated: 2017-12-17 07:11:39 gmt
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