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Aristolochia tomentosa (Woolly dutchman's pipe)
Smith, R.W.

Aristolochia tomentosa

Aristolochia tomentosa Sims

Woolly Dutchman's Pipe, Common Dutchman's Pipe

Aristolochiaceae (Birthwort Family)

Synonym(s): Isotrema tomentosa, Isotrema tomentosum

USDA Symbol: ARTO3

USDA Native Status: L48 (N)

Aristolochia tomentosa has a bractless flower stalk, a yellowish calyx that is purple around the opening, and downy and whitish leaf undersurfaces.


From the Image Gallery

6 photo(s) available in the Image Gallery

Plant Characteristics

Duration: Perennial
Habit: Vine
Root Type: Tap
Leaf Arrangement: Alternate
Leaf Complexity: Simple
Leaf Shape: Ovate
Leaf Venation: Pinnate
Leaf Pubescence: Tomentose
Leaf Margin: Entire
Leaf Apex: Obtuse
Leaf Base: Cordate
Breeding System: Flowers Bisexual
Fruit Type: Capsule
Size Notes: Twining stems up to about 80 feet long.
Leaf: Dark green

Bloom Information

Bloom Color: Yellow , Green , Purple
Bloom Time: Mar , Apr , May


USA: AL , AR , CT , FL , GA , IL , IN , KS , KY , LA , MA , MO , MS , NC , NY , OH , OK , SC , TN , TX , VT , WI
Native Habitat: Stream banks, Flood plains, bottomland

Growing Conditions

Water Use: Medium
Light Requirement: Part Shade
Soil Moisture: Moist
Soil Description: Sandy, Sandy Loam, Medium Loam


Use Ornamental: Blooms ornamental, Planned landscape
Conspicuous Flowers: yes
Attracts: Butterflies
Larval Host: Pipevine swallowtail butterfly.

Butterflies and Moths of North America (BAMONA)

Pipevine Swallowtail
(Battus philenor)

Larval Host
Learn more at BAMONA

National Wetland Indicator Status

This information is derived from the U.S. Army Corps of Engineers National Wetland Plant List, Version 3.1 (Lichvar, R.W. 2013. The National Wetland Plant List: 2013 wetland ratings. Phytoneuron 2013-49: 1-241). Click here for map of regions.

From the National Organizations Directory

According to the species list provided by Affiliate Organizations, this plant is on display at the following locations:

Texas Discovery Gardens - Dallas, TX
Texas Parks and Wildlife Department - Austin, TX
NPSOT - Austin Chapter - Austin, TX
NPSOT - Williamson County Chapter - Georgetown, TX
Mt. Cuba Center - Hockessin, DE

Additional resources

USDA: Find Aristolochia tomentosa in USDA Plants
FNA: Find Aristolochia tomentosa in the Flora of North America (if available)
Google: Search Google for Aristolochia tomentosa


Record Modified: 2015-02-10
Research By: TWC Staff

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