Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Asterids: Lamiids: Gentianales
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Gonolobus suberosus var. suberosus
FAMILY
Apocynaceae
Go to FSUS key
Dig deeper at SERNEC, a consortium of southeastern herbaria.
Read more about Gonolobus at Vascular Plants of North Carolina.
INCLUDED WITHIN
PLANTS NATIONAL DATABASE:
Matelea gonocarpos
FAMILY
Asclepiadaceae
SYNONYMOUS WITH Floristic Synthesis of North America. BONAP (Kartesz, 2021)
Gonolobus suberosus var. suberosus
INCLUDING VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 157-03-001 & 002:
Matelea gonocarpa FAMILY Asclepiadaceae
INCLUDING Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968)
Matelea suberosa
INCLUDING Britton & Brown Illus Flora of Northeast US & adjacent Canada (Gleason, 1952)
Gonolobus gonocarpos
INCLUDED WITHIN Manual of the Southeastern Flora (Small, 1933, 1938)
Vincetoxicum gonocarpos
INCLUDING Manual of the Southeastern Flora (Small, 1933, 1938)
Vincetoxicum suberosum
COMMON NAME:
Eastern Anglepod
To see larger pictures, click or hover over the thumbnails.
)
USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913 pnd_vigo_001_lvd
)
USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913 pnd_visu4_001_lvd
)
Roxanna Martin rlm22409_013
February Spartanburg County SC
)
JK Marlow jkm250429_0152
April Greenville County SC
Tall Pines Wildlife Management Area
)
Sam Pratt sbp_image1_1
May AL
)
Gill Newberry gn06_matelea_inf
June
Buds conical, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).
)
JK Marlow jkm120617_963
June Spartanburg County SC
Leaves 8-12(20)cm long, 4-10cm wide, apex apiculate, base widely cordate, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).
)
JK Marlow jkm120617_965
June Spartanburg County SC
Stem mostly hairy; 5 spreading petals yellowish at tip, deep purple at base, per Atlantic Coastal Plain Wildflowers (Nelson, 2006).
)
JK Marlow jkm120617_968
June Spartanburg County SC
Petals usually more than 2x long as sepals, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).
)
JK Marlow jkm120617_971
June Spartanburg County SC
Leaves may be up to 8" long and 6" wide but are often slightly smaller, per Atlantic Coastal Plain Wildflowers (Nelson, 2006).
)
JK Marlow jkm180604_2749
June McCormick County SC
Parks Mill
)
JK Marlow jkm190604_8929
June Greenville County SC
Tall Pines Wildlife Management Area
)
JK Marlow jkm190604_8932
June Greenville County SC
Tall Pines Wildlife Management Area
Gonolobus leaves have a disagreeable odor of peanut butter or burnt-and-buttered popcorn, per Weakley's Flora (2025).
)
JK Marlow jkm190604_8934
June Greenville County SC
Tall Pines Wildlife Management Area
Typically has some leaves with margins ~ parallel for some length before curving toward the tip, per Weakley's Flora (2025).
)
Patrick D. McMillan pdmggonocarpus_hutch10
June Colleton County SC
Upper surface of corolla lobes multi-colored, per Weakley's Flora.
COMPARE
Anglepod and Spinypod (Climbing Milkweed)
)
Patrick D. McMillan pdmggonocarpus_hutch12
June Colleton County SC
)
Roxanna Martin rlm61908_008
June Spartanburg County SC
)
Roxanna Martin rlm6510_365
June Spartanburg County SC
)
Roxanna Martin rlm6510_366
June Spartanburg County SC
)
Richard and Teresa Ware rtw_m_gonocarpa_ang
June Floyd County GA
)
JK Marlow jkm120729_098
July Spartanburg County SC
)
Roxanna Martin rlm72608_049
July Spartanburg County SC
)
Roxanna Martin rlm752009_073
July Spartanburg County SC
The fruit is a large tapering follicle with conspicuously angled sutures, per Atlantic Coastal Plain Wildflowers (Nelson, 2006).
)
Richard and Teresa Ware rtw_matelea_gonocarpa_2
July
)
Gill Newberry gn08_m_suberosa
August
)
JK Marlow jkm180814_3787
August McCormick County SC
Parks Mill
)
Roxanna Martin rlm92509_003
September Spartanburg County SC
Fruits are smooth angled follicles, per Wildflowers of Tennessee, the Ohio Valley, and the Southern Appalachians (Horn, Cathcart, Hemmerly, & Duhl, 2005).
)
Richard and Teresa Ware rtw_matelea_gonocarpa_4
September
)
John B. Nelson jbn_2117940620_018f509e5a
December Richland County SC
In cultivation
The follicles are dehiscent along 1 suture, per Wildflowers of Tennessee, the Ohio Valley, and the Southern Appalachians (Horn, Cathcart, Hemmerly, & Duhl, 2005).
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Gonolobus suberosus var. suberosus
FAMILY
Apocynaceae
INCLUDED WITHIN
PLANTS NATIONAL DATABASE:
Matelea gonocarpos
FAMILY
Asclepiadaceae
SYNONYMOUS WITH
Floristic Synthesis of North America. BONAP (Kartesz, 2021)
Gonolobus suberosus var. suberosus
INCLUDING
VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 157-03-001 & 002:
Matelea gonocarpa
FAMILY
Asclepiadaceae
INCLUDING
Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968)
Matelea suberosa
INCLUDING
Britton & Brown Illus Flora of Northeast US & adjacent Canada (Gleason, 1952)
Gonolobus gonocarpos
INCLUDED WITHIN
Manual of the Southeastern Flora (Small, 1933, 1938)
Vincetoxicum gonocarpos
INCLUDING
Manual of the Southeastern Flora (Small, 1933, 1938)
Vincetoxicum suberosum
1975
Herbaceous vine (twining)
Perennial
Habitat: Mesic to wet forests and thickets, per Weakley's Flora
Native to the Carolinas & Georgia
Common (rare in Carolina Mountains)
CLICK HERE to see a map, notes, and images from Weakley's Flora of the Southeastern US.
DOES THE PLANT HAVE "MILKY SAP"?
Has milky sap (latex)
IS THE PLANT "ARMED"?
Follicle surface smooth and angled (not muricate)
LEAVES:
Simple
Opposite
Leaves cordate
FLOWER:
Summer
Yellow/ Purplish-brown
Radially symmetrical
5-merous
5-lobed rotate corolla
Superior ovary
Bisexual
FRUIT:
Summer/Fall
Follicle
TO LEARN MORE about this plant, look it up in a good book!
- Atlantic Coastal Plain Wildflowers (Nelson, 2006) p040
- Guide to the Wildflowers of SC, 1st ed. (Porcher & Rayner, 2001) p193
- Guide to the Wildflowers of SC, 2nd ed. (McMillan, Porcher, Rayner, & White; 2022) p239
- Guide to the Wildflowers of SC, 2nd ed. (McMillan, Porcher, Rayner, & White; 2022) p251
- Guide to the Wildflowers of SC, 2nd ed. (McMillan, Porcher, Rayner, & White; 2022) p430
- Field Guide to the Rare Plants of Georgia (Chafin, 2007) p223
- Wildflowers of the Atlantic Southeast (Cotterman, Waitt, & Weakley, 2019) p457
- Wildflowers of the Eastern United States (Duncan & Duncan, 1999) p071
- Field Guide to the Wildflowers of Georgia (Chafin, 2016) p053
- Wildflowers of Tennessee (Carman, 2005) p195
- Wildflowers of Tennessee, the Ohio Valley, and the Southern Appalachians (Horn, Cathcart, Hemmerly, & Duhl, 2005) p232
- Wildflowers of the Southern Mountains (Smith, 1998) p129
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