Plant · GBIF taxon 3170225
Funastrum cynanchoides
Funastrum cynanchoidesAlso known as Fringed Twinevine, Twining Milkweed, Climbing Milkweed
Fringed twinevines climb vigorously over desert shrubs, riparian thickets, and fences, hoisting arrow-shaped leaves toward the sunlight on slender twisting stems. Clusters of fragrant, star-shaped flowers bloom in pink and cream hues throughout the heat of summer, drawing a bustling community of native bees, wasps, and butterflies. Dense milky latex courses through its tissues, providing essential nourishment for queen butterfly larvae while deterring unspecialized herbivores.
Desert VineMilkweedPollinator Host
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—peak records
Not EvaluatedConservation statusIUCN Red List categoriesLCNTVUENCREWEXNot Evaluated — not placed on the risk ladderRed List categories, explained →
Diet & prey
- Autotrophic (photosynthetic)
Predators
- Queen Butterfly Caterpillar
- Monarch Butterfly Caterpillar
- Large Milkweed Bug
ThreatsHerbicide application along utility corridors, severe prolonged drought, land development
HabitatsDesert washes, riparian borders, arid scrublands, roadsides
Life span10–25 years
Size / weightNot available
Classification
- OrderGentianales
- FamilyApocynaceae
- GenusFunastrum
- SpeciesFunastrum cynanchoides
Range data is not available yet.
Interaction riskHigh
- Low
- Moderate
- High
- Very high
- Why interaction risk is high
- Milky latex contains toxic cardiac glycosides and irritates skin; avoid ingestion and wash hands after contact.
- Why it is dangerous
- Plant tissues contain cardiac glycosides that disrupt heart rhythm if ingested, alongside caustic sap that irritates eyes and sensitive skin.
- How to recognize a risky encounter
- Recognizable by its twining desert vine habit, pungent odor, clusters of fringed star flowers, and copiously leaking white latex when stems break.
- What to do
- Observe without tearing the foliage, and wash promptly with cool water and soap if sticky sap contacts your skin.
Responsible observation
- Caterpillar Hunting: Inspect the underside of broad leaves for striped queen butterfly caterpillars throughout the summer.
- Latex Protection: Wear garden gloves when clearing overgrowth to keep the pungent white sap off your skin.
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