Gulf Coast Swallow-wort
Pattalias palustris
Found in Coastal hammocks, edges of marshes, generally or always on barrier islands. FloraQuest, phone app (app page) What its natural habitat tells you
Native to Florida. 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 31 Florida counties.
Natural habitats
Places it grows wild. Not a planting requirement.

Habitats
Coastal Plain hammocks; freshwater marshes.
Each habitat page lists the plants and wildlife also found there. All habitats
Who uses this plant?
7CaterpillarsGenus host records with ranges including FL
Genus host records with ranges including FL · Cynanchum
- Composia fidelissimaFaithful Beauty Moth, Florida Composia
- Danaus eresimusSoldier, Tropical Queen
- Danaus gilippusQueen
- Danaus plexippusMonarch
- 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 4.0No 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
| Florida rank | SNR |
|---|---|
| Global rank | G5 |
| FL 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
- Atlas of Florida Plants
- Vascular Plants of North Carolina (NC Natural Heritage Program)
- FloraQuest: Carolinas, Georgia (Weakley), phone app (app page)
- FloraQuest: Florida (Weakley), phone app (app page)
- NatureServe Explorer
- 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

