Gulf Coast Swallow-wort
Cynanchum angustifolium
Found in Coastal hammocks, edges of marshes, generally or always on barrier islands. Weakley, Flora of the Southeastern United States (2025), South Central edition What its natural habitat tells you
Native to Mississippi. How scores work Is it native here?
Profile 29%
Will it fit your yard?No photograph yet. Looking for an old drawing…
At a glance
- Life cycle
- Perennial
Not yet recorded · Height · Spread · Light · Soil · Leaves · Bloom
Height and bloom: NC species account not read yet.
Spread, light, soil and leaves: no source found yet.
This plant is missing most of its facts, so Quercus is looking them up in old botany books.
Recorded in 3 Mississippi counties.
Natural habitats
Places it grows wild. Not a planting requirement. Each habitat page lists the plants and wildlife also found there.
Dense, evergreen groves of live oak, magnolia and other hardwoods in the southern Coastal Plain, from dry oak domes to wet hydric hammocks and south Florida's tropical hammocks; salt-shaped maritime hammocks are maritime forests.
Open, herb-covered wetlands with fresh, non-tidal water.
Who uses this plant?
5CaterpillarsGenus host records with ranges including MS
Genus host records with ranges including MS · Cynanchum
- Danaus plexippusMonarch
- Danaus gilippusQueen
- Erinnyis obscuraObscure Sphinx
- Euchaetes egleMilkweed Tussock Moth or Milkweed Tiger Moth
- Euptoieta claudiaVariegated Fritillary, (?)Gulf Fritillary
9BeesSoutheastern regional records
Southeastern regional records · Cynanchum
Individual names are not available yet.
Noori, Seltmann & Orr 2026, A curated and integrated dataset for exploring global bee-plant interactions (GloBI), Zenodo, CC BY 4.0
0Specialist beesPollen specialists
—BirdsRecorded genus food-resource interactions; not a state feeding claimNo records yet · Ants · Beetles · Flies · Adult butterflies / moths · Other wasps · Other insects
Plant details
- Family
- Apocynaceae
- Flower color
- White or green
Safety has not been reviewed for this plant; check toxicity and thorns before planting.
Growing sources and scope
- Flower color · “White or green” · Lady Bird Johnson Wildflower Center
- Life cycle · “Perennial” · Lady Bird Johnson Wildflower Center
Also known as
Cynanchum angustifolium; Cynanchum palustre; Gulf Coast Swallow wort; Pattalias palustre; Pattalias palustris; honeyvine
Conservation status
| Mississippi rank | S4 |
|---|---|
| Global rank | G5 |
| MS status | Not verified |
| Federal status | Not verified |
Will it fit your yard?
Check this plant against your county, sun and soil moisture. Conditions are checked in your browser.
Sources
- NatureServe Explorer
- Vascular Plants of North Carolina (NC Natural Heritage Program)
- Weakley, Flora of the Southeastern United States (2025), Carolinas & Georgia edition
- Mississippi occurrence source
- Shropshire & Tallamy 2025, Lepidoptera of North America north of Mexico, ZooKeys 1261 (ODbL)
- Noori, Seltmann & Orr 2026, A curated and integrated dataset for exploring global bee-plant interactions (GloBI), Zenodo, CC BY 4.0
- Smith, Bachelder, Russell, Morales, Mosher & Seltmann 2024, Bee-Specialization-Modeling v0.6.1 (specialist host table compiled from J. Fowler's pollen specialist bee lists), Zenodo, CC BY 4.0
- Hurlbert, Olsen, Sawyer & Winner 2021, Avian Diet Database, Scientific Data 8: 260 (CC0)
- Narango, Tallamy & Shropshire 2020, Few keystone plant genera support the majority of Lepidoptera species, Nature Communications