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Trillium viridescens Nutt.
Ozark Green Trillium

Life   Plantae   Monocotyledoneae   Liliaceae   Trillium

Trillium viridescens, plant
© George Yatskievych, 2003 · 1
Trillium viridescens, plant

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Trillium viridescens, leaf and flower
© George Yatskievych, 2003 · 1
Trillium viridescens, leaf and flower
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Trillium viridescens Nutt.
tapertip wakerobin

General Information
Symbol: TRVI5
Group: Monocot
Family: Liliaceae
Duration: Perennial
Growth Habit : Forb/herb
Native Status : L48   N
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Native Status:
lower 48 status L48    Alaska status AK    Hawaii status HI    Puerto Rico status PR    Virgin Islands status VI    Navassa Island NAV    Canada status CAN    Greenland status GL    Saint Pierre and Michelon status SPM    North America NA   





Click on a scientific name below to expand it in the PLANTS Classification Report.
Rank Scientific Name and Common Name
Kingdom Plantae – Plants
Subkingdom Tracheobionta – Vascular plants
Superdivision Spermatophyta – Seed plants
Division Magnoliophyta – Flowering plants
Class Liliopsida – Monocotyledons
Subclass Liliidae
Order Liliales
Family Liliaceae – Lily family
Genus Trillium L. – trillium
Species Trillium viridescens Nutt. – tapertip wakerobin

Subordinate Taxa

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Wetland Status

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Flora of North America (TRVI5)
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Source Large Mammals Small Mammals Water Birds Terrestrial Birds


Source Large Mammals Small Mammals Water Birds Terrestrial Birds

Description of Values

Value Class Food Cover

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Following modified from Flora of North America
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FNA Vol. 26 Page 95, 117 Login | eFloras Home | Help
FNA | Family List | FNA Vol. 26 | Liliaceae | Trillium

38. Trillium viridescens Nuttall, Trans. Amer. Philos. Soc. n. s. 5: 155. 1837.

Ozark green trillium, Ozark trillium

Rhizomes horizontal, brownish, short, thick, praemorse, not brittle. Scapes 1—3, round in cross section, 2—5 dm, ± stout, glabrous to scabrous. Bracts touching ground in early anthesis or not at all, sessile; blade dark green, obscurely marked with few—many darker blotches (very rarely unmottled), mottling becoming obscure with age, few or no stomates adaxially, ovate-elliptic to broadly so, 8.5—14 × 6.8—9 cm, apex acuminate. Flower erect, odor, if present, spicy or musty; sepals displayed above bracts, widely spreading, green or variously purple marked, lanceolate, 38—60 × 5—12 mm, margins entire, apex acute; petals long-lasting, erect, ± connivent, ± concealing stamens and ovary, purplish black on claw, greenish to yellow-green distally, sometimes all dark purple, occasionally slightly twisted, linear to narrowly spatulate, 4—8 × 0.8—1.2 cm, thick-textured, base slightly thickened and clawed, margins entire, apex rounded, lacking nipple; stamens erect, connivent (clustered together, leaning upon each other), 16—25 mm; filaments olive or purplish brown, 2.5—5 mm, very slender, widened basally; anthers erect, straight or slightly incurved, olive-brown, 13—20 mm, ± slender, dehiscence latrorse; connectives brownish, barely extending beyond anther sacs; ovary pale greenish white basally, purplish distally, ovoid, 6-angled, 5.5—10 mm; stigmas erect, divergent-recurved, distinct, purplish abaxially, sessile, almost linear, 6—10 mm, ± equaling ovary, ± not fleshy, very slightly widened basally. Fruits dark purplish green or green, odor unreported, ovoid, obscurely angled, with remains of persistent stigma, 0.7—1.5 cm, pulpy, not juicy at time of separation from receptacle.

Flowering spring (early Apr--mid May). Deciduous forests, usually quite rich, on banks, bluffs, talus slopes, floodplain alluvium, with cane (Arundinaria) or on sloping banks just above normal flood levels in heavy, clayey soils, with common spring ephemerals; of conservation concern; 100--400 m; Ark., Kans., Mo., Okla., Tex.

J. D. Freeman (1975) considered that Trillium viridescens intergrades with T. gracile in northeastern Texas and stated that these putative intergrades produce purple petals, but purple-petaled forms also occur in Arkansas, far from the influence of T. gracile.

Updated: 2018-10-20 11:25:50 gmt
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