Trillium undulatum Willd.
Painted trillium
Kingdom Plantae Plants, but not fungi, lichens, or algae
Subkingdom Tracheobionta Vascular plants—plants with a “circulatory system” for delivering water and nutrients
Division Magnoliophyta Flowering plants, also known as angiosperms
Class Liliopsida Monocots (plants with a single seed leaf); includes the lily family
Subclass Liliidae Includes lilies, orchids, and many others
Order Liliales Includes lilies, tulips, trilliums, greenbriars, and others
Family Melanthiaceae Trillium family
Genus Trillium “Three-petaled lily”
Species undulatum Wavy-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
5/15/2016 · Mt. Watatic, Ashby, Massachusetts
5/18/2018 · Willard Brook State Park, Blue Trail, Ashby, Massachusetts · ≈ 7 × 4½″ (18 × 12 cm)
8/25/2019 · Blue Trail, Willard Brook State Park, Ashby, Massachusetts
5/14/2016 · Willard Brook State Park, Ashby, Massachusetts · ≈ 7 × 4½″ (18 × 12 cm)
7/30/2010 · Willard Brook State Forest, Blue Trail, Ashby & Townsend, Massachusetts · ≈ 15 × 10″ (39 × 26 cm) ID is uncertain
5/4/2012 · Willard Brook State Park, Blue Trail, Ashby, Massachusetts · ≈ 9 × 6″ (22 × 14 cm)
5/16/2014 · Acton Arboretum, Action, Massachusetts · ≈ 8 × 5″ (19 × 13 cm)
7/31/2015 · Willard Brook State Park, Blue Trail, Ashby, Massachusetts · ≈ 10 × 7″ (25 × 16 cm)
5/15/2016 · Mt. Watatic, Ashby, Massachusetts
8/4/2017 · Willard Brook State Park, Ashby, Massachusetts · ≈ 6 × 4″ (15 × 10 cm)
5/15/2016 · Mt. Watatic, Ashby, Massachusetts
5/4/2012 · Willard Brook State Park, Blue Trail, Ashby, Massachusetts · ≈ 5 × 3½″ (13 × 9.2 cm)
8/4/2017 · Willard Brook State Park, Ashby, Massachusetts · ≈ 6 × 4″ (15 × 10 cm)
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.
8/8/2015 · Mt. Wachusett · ≈ 11 × 7″ (28 × 18 cm)
5/18/2021 · Cathance River Nature Preserve, Topsham, Maine · ≈ 7 × 4½″ (17 × 11 cm)
4/24/2016 · Blue Trail, Willard Brook State, Ashby, New Hampshire
5/4/2012 · Willard Brook State Park, Blue Trail, Ashby, Massachusetts · ≈ 7 × 4½″ (17 × 11 cm)
8/4/2017 · Willard Brook State Park, Ashby, Massachusetts · ≈ 6 × 4″ (14 × 10 cm)
7/30/2010 · Willard Brook State Forest, Blue Trail, Ashby & Townsend, Massachusetts · ≈ 11 × 7″ (27 × 18 cm) ID is uncertain
5/18/2018 · Willard Brook State Park, Blue Trail, Ashby, Massachusetts · ≈ 7 × 4½″ (18 × 12 cm)
8/14/2015 · Roost Trail, Grafton Notch State Park, Newry, Maine · ≈ 10 × 7″ (25 × 16 cm)
8/14/2015 · Roost Trail, Grafton Notch State Park, Newry, Maine · ≈ 8 × 6″ (20 × 14 cm)
5/18/2018 · Willard Brook State Park, Blue Trail, Ashby, Massachusetts · ≈ 7 × 4½″ (18 × 12 cm)
5/18/2018 · Willard Brook State Park, Blue Trail, Ashby, Massachusetts · ≈ 8 × 5″ (20 × 13 cm)
5/4/2012 · Willard Brook State Park, Blue Trail, Ashby, Massachusetts · ≈ 7 × 4½″ (17 × 11 cm)
4/24/2016 · Blue Trail, Willard Brook State, Ashby, New Hampshire
8/14/2015 · Roost Trail, Grafton Notch State Park, Newry, Maine · ≈ 2½ × 1½′ (79 × 53 cm)
5/18/2018 · Willard Brook State Park, Blue Trail, Ashby, Massachusetts · ≈ 6 × 4″ (15 × 10 cm)
5/18/2018 · Willard Brook State Park, Blue Trail, Ashby, Massachusetts · ≈ 6 × 4″ (16 × 11 cm)
4/15/1979 · Memphis, Tennessee · By Tim Chandler
Range:
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