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Trillium undulatum Willd.

Painted trillium

KingdomPlantaePlants, but not fungi, lichens, or algae
SubkingdomTracheobiontaVascular plants—plants with a “circulatory system” for delivering water and nutrients
DivisionMagnoliophytaFlowering plants, also known as angiosperms
ClassLiliopsidaMonocots (plants with a single seed leaf); includes the lily family
SubclassLiliidaeIncludes lilies, orchids, and many others
OrderLilialesIncludes lilies, tulips, trilliums, greenbriars, and others
FamilyMelanthiaceaeTrillium family
GenusTrillium“Three-petaled lily”
SpeciesundulatumWavy-margined

About plant names...

The painted trillium is native to eastern North America. Trilliums are members of the lily family.

Identification: Plants are 4-16″ (11-40 cm) high, with dark greenish or maroon stems. A whorl of three leaves forms atop each of the 1-3 stems, each leaf facing straight upward, with a single flower emerging from the center. Leaves are oval or diamond-shaped in shape, wider at the base, tapering to pointed tips, and with even edges, 4½-7″ (12-18 cm) × 3-8″ (8-20 cm). A flower tops each stem, elevated above the leaves, with three conspicuous white petals tinged with pink near the centers, and large yellow stamens. Each petal is about 1-1½″ (2.5-3.8 cm) long and ½-¾″ (1.3-1.9 cm) wide. Fruits are ⅜-¾″ (1-2 cm), roughly pear-shaped or shaped somewhat like a prism, and scarlet in color.

See also this Trillium comparison table.

By T.G. Barnes of the Forest Service of the United States Department of Agriculture.

Online References:

Ncwildflower.org

The Encyclopedia of Life

Botanyphoto.botanicalgarden.ubc.ca

CalPhotos

Naturalhistory.si.edu

Trillium undulatum (painted trillium)

5/15/2016 · Mt. Watatic, Ashby, Mass­a­chu­setts

Trillium undulatum (painted trillium)

5/18/2018 · Willard Brook State Park, Blue Trail, Ashby, Mass­a­chu­setts · ≈ 7 × 4½″ (18 × 12 cm)

Trillium undulatum (painted trillium)

8/25/2019 · Blue Trail, Willard Brook State Park, Ashby, Mass­a­chu­setts

Trillium undulatum (painted trillium)

5/14/2016 · Willard Brook State Park, Ashby, Mass­a­chu­setts · ≈ 7 × 4½″ (18 × 12 cm)

Trillium undulatum (painted trillium)

7/30/2010 · Willard Brook State Forest, Blue Trail, Ashby & Townsend, Mass­a­chu­setts · ≈ 15 × 10″ (39 × 26 cm) ID is uncertain

Trillium undulatum (painted trillium)

5/4/2012 · Willard Brook State Park, Blue Trail, Ashby, Mass­a­chu­setts · ≈ 9 × 6″ (22 × 14 cm)

Trillium undulatum (painted trillium)

5/16/2014 · Acton Arboretum, Action, Mass­a­chu­setts · ≈ 8 × 5″ (19 × 13 cm)

Trillium undulatum (painted trillium)

7/31/2015 · Willard Brook State Park, Blue Trail, Ashby, Mass­a­chu­setts · ≈ 10 × 7″ (25 × 16 cm)

Trillium undulatum (painted trillium)

5/15/2016 · Mt. Watatic, Ashby, Mass­a­chu­setts

Trillium undulatum (painted trillium)

8/4/2017 · Willard Brook State Park, Ashby, Mass­a­chu­setts · ≈ 6 × 4″ (15 × 10 cm)

Trillium undulatum (painted trillium)

5/15/2016 · Mt. Watatic, Ashby, Mass­a­chu­setts

Trillium undulatum (painted trillium)

5/4/2012 · Willard Brook State Park, Blue Trail, Ashby, Mass­a­chu­setts · ≈ 5 × 3½″ (13 × 9.2 cm)

Trillium undulatum (painted trillium)

8/4/2017 · Willard Brook State Park, Ashby, Mass­a­chu­setts · ≈ 6 × 4″ (15 × 10 cm)

Trillium undulatum (painted trillium)

5/18/2018 · Willard Brook State Park, Blue Trail, Ashby, Mass­a­chu­setts · ≈ 6 × 4″ (16 × 11 cm)

 

Trillium undulatum description by Thomas H. Kent, last updated 10 Sep 2023.

© FloraFinder.org. All rights reserved.


 

Trillium undulatum (painted trillium)

8/8/2015 · Mt. Wachusett · ≈ 11 × 7″ (28 × 18 cm)

Trillium undulatum (painted trillium)

5/18/2021 · Cathance River Nature Preserve, Topsham, Maine · ≈ 7 × 4½″ (17 × 11 cm)

Trillium undulatum (painted trillium)

4/24/2016 · Blue Trail, Willard Brook State, Ashby, New Hamp­shire

Trillium undulatum (painted trillium)

5/4/2012 · Willard Brook State Park, Blue Trail, Ashby, Mass­a­chu­setts · ≈ 7 × 4½″ (17 × 11 cm)

Trillium undulatum (painted trillium)

8/4/2017 · Willard Brook State Park, Ashby, Mass­a­chu­setts · ≈ 6 × 4″ (14 × 10 cm)

Trillium undulatum (painted trillium)

7/30/2010 · Willard Brook State Forest, Blue Trail, Ashby & Townsend, Mass­a­chu­setts · ≈ 11 × 7″ (27 × 18 cm) ID is uncertain

Trillium undulatum (painted trillium)

5/18/2018 · Willard Brook State Park, Blue Trail, Ashby, Mass­a­chu­setts · ≈ 7 × 4½″ (18 × 12 cm)

Trillium undulatum (painted trillium)

8/14/2015 · Roost Trail, Grafton Notch State Park, Newry, Maine · ≈ 10 × 7″ (25 × 16 cm)

Trillium undulatum (painted trillium)

8/14/2015 · Roost Trail, Grafton Notch State Park, Newry, Maine · ≈ 8 × 6″ (20 × 14 cm)

Trillium undulatum (painted trillium)

5/18/2018 · Willard Brook State Park, Blue Trail, Ashby, Mass­a­chu­setts · ≈ 7 × 4½″ (18 × 12 cm)

Trillium undulatum (painted trillium)

5/18/2018 · Willard Brook State Park, Blue Trail, Ashby, Mass­a­chu­setts · ≈ 8 × 5″ (20 × 13 cm)

Trillium undulatum (painted trillium)

5/4/2012 · Willard Brook State Park, Blue Trail, Ashby, Mass­a­chu­setts · ≈ 7 × 4½″ (17 × 11 cm)

Trillium undulatum (painted trillium)

4/24/2016 · Blue Trail, Willard Brook State, Ashby, New Hamp­shire

Trillium undulatum (painted trillium)

8/14/2015 · Roost Trail, Grafton Notch State Park, Newry, Maine · ≈ 2½ × 1½′ (79 × 53 cm)

Trillium undulatum (painted trillium)

5/18/2018 · Willard Brook State Park, Blue Trail, Ashby, Mass­a­chu­setts · ≈ 6 × 4″ (15 × 10 cm)

Trillium undulatum (painted trillium)

5/18/2018 · Willard Brook State Park, Blue Trail, Ashby, Mass­a­chu­setts · ≈ 6 × 4″ (16 × 11 cm)

Trillium undulatum (painted trillium)

4/15/1979 · Memphis, Ten­nes­see · By Tim Chandler

Range:

About this map...