Spermatophytes (seed plants): Angiosperms (flowering plants): Magnoliids: Piperales
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Isotrema tomentosum
FAMILY
Aristolochiaceae
Go to FSUS key
Dig deeper at SERNEC, a consortium of southeastern herbaria.
Read a taxonomic advisory regarding Isotrema from Alan Weakley and the Southern Appalachian Botanical Society.
Learn more about Woolly Pipevine from the Vascular Plants of North Carolina.
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Aristolochia tomentosa
FAMILY
Aristolochiaceae
SYNONYMOUS WITH Floristic Synthesis of North America. BONAP (Kartesz, 2021)
Isotrema tomentosum
SYNONYMOUS WITH (ORTHOGRAPHIC VARIANT) Tennessee Flora Committee (2015)
Isotrema tomentosa
SYNONYMOUS WITH Flora of North America north of Mexico, vol. 3 (1997)
Aristolochia tomentosa
SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 062-01-003?:
Aristolochia tomentosa FAMILY Aristolochiaceae
SYNONYMOUS WITH Manual of the Southeastern Flora (Small, 1933, 1938)
Aristolochia tomentosa
COMMON NAME:
Woolly Dutchman's Pipe, Woolly Pipevine
To see larger pictures, click or hover over the thumbnails.
)
USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913 pnd_arto3_001_lvd
)
USDA-NRCS PLANTS Database / USDA Wetland flora: Field office illustrated guide pnd_arto3_002_lvd
)
Jeff Ausmus jma_aritom_4
June Monroe County MI
In cultivation
Flowers about 1.6" long; covered w matted woolly hairs; strongly bent and pipe-shaped, per Wildflowers of Tennessee, the Ohio Valley, and the Southern Appalachians (Horn, Cathcart, Hemmerly, & Duhl, 2005).
)
Jeff Ausmus jma_aritom3
June Monroe County MI
In cultivation
Pipe "face" is about 1" wide with 3 equal lobes and a purple-brown mouth, per Wildflowers of Tennessee, the Ohio Valley, and the Southern Appalachians (Horn, Cathcart, Hemmerly, & Duhl, 2005).
)
Jeff Ausmus jmaaritom
June Monroe County MI
In cultivation
Peduncle 1-7cm, not bracteolate, per Flora of North America.
)
Jeff Ausmus jmaaritom2
June Monroe County MI
In cultivation
)
JK Marlow s090725_08285
July
In cultivation
Lvs heart-shaped to nearly round, 4-8" long & wide, softly pubescent beneath, per Wildflowers of Tennessee (Carman, 2005).
)
Jeff Ausmus jma_aritom5
August Monroe County MI
In cultivation
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Isotrema tomentosum
FAMILY
Aristolochiaceae
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Aristolochia tomentosa
FAMILY
Aristolochiaceae
SYNONYMOUS WITH
Floristic Synthesis of North America. BONAP (Kartesz, 2021)
Isotrema tomentosum
SYNONYMOUS WITH (ORTHOGRAPHIC VARIANT)
Tennessee Flora Committee (2015)
Isotrema tomentosa
SYNONYMOUS WITH
Flora of North America north of Mexico, vol. 3
Aristolochia tomentosa
SYNONYMOUS WITH
VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 062-01-003?:
Aristolochia tomentosa
FAMILY
Aristolochiaceae
SYNONYMOUS WITH
Manual of the Southeastern Flora (Small, 1933, 1938)
Aristolochia tomentosa
2593
Climbing woody vine
Perennial
Habitat: Bottomland and riparian forests, stream and river banks, disturbed areas, per Weakley's Flora
Native to South Carolina & Georgia (possibly introduced in NC)
Uncommon in NC Mountains (where is possibly introduced) (rare elsewhere in GA-NC-SC)
CLICK HERE to see a map, notes, and images from Weakley's Flora of the Southeastern US.
LEAVES:
Deciduous
Simple
Alternate
FLOWER:
Spring/Summer
Calyx yellowish
(with a purple mouth)
Bilaterally symmetrical calyx
3-merous
Calyx tubular, limb with 3 spreading lobes
Petals absent, usually
6 stamens
Inferior ovary
Bisexual
FRUIT:
Summer/Fall?
Capsule
TO LEARN MORE about this plant, look it up in a good book!
- Gardening with the Native Plants of Tennessee (Hunter, 2002) p220
- Guide to the Wildflowers of SC, 2nd ed. (McMillan, Porcher, Rayner, & White; 2022) p143
- Guide to the Wildflowers of SC, 2nd ed. (McMillan, Porcher, Rayner, & White; 2022) p460
- How to Recognize Shrubs (Grimm, 1966) p103
- Native Shrubs and Woody Vines of the Southeast (Foote & Jones, 1989) p057
- Field Guide to the Wildflowers of Georgia (Chafin, 2016) p045
- Wildflowers of Tennessee (Carman, 2005) p027
- Wildflowers of Tennessee, the Ohio Valley, and the Southern Appalachians (Horn, Cathcart, Hemmerly, & Duhl, 2005) p046
- Woody Plants of the Southeastern US: A Winter Guide (Lance, 2004) p063
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