Delaware Wildflowers • Scientific names
Arisaema triphyllum subsp. triphyllum
Swamp Jack-in-the-pulpitAraceae — Arum family
Native
Middle Run Valley Natural Area
May 2001
White Clay Creek State Park -- Thompson Station Road
September 2005
White Clay Creek State Park -- Thompson Station Road
April 2014
Pistillate flowers
Middle Run Valley Natural AreaMay 2014
Staminate flowers
White Clay Creek State Park -- Possum HillMay 2014
The other plant is stiltgrass, an invasive non-native.
White Clay Creek State Park -- Judge Morris EstateSeptember 2014
White Clay Creek State Park -- Possum Hill
September 2017
White Clay Creek State Park -- Thompson Station Road
September 2019
Guide to Arisaema of Delaware
Search Google • Delaware • USDA
Photos copyright David G. Smith
Information from the Delaware Flora Checklist used with author's permission.