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Funastrum cynanchoides ssp. heterophyllum (Hartweg's twinevine)
Cliffe, Harry

Funastrum cynanchoides ssp. heterophyllum

Funastrum cynanchoides (Decne.) Schltr. ssp. heterophyllum (Engelm. ex Torr.) Kartesz

Hartweg's Twinevine, Vine Milkweed

Asclepiadaceae (Milkweed Family)

Synonym(s): Funastrum cynanchoides var. hartwegii, Funastrum heterophyllum, Funastrum lineare, Philibertia heterophylla, Sarcostemma cynanchoides ssp. hartwegii, Sarcostemma cynanchoides var. hartwegii


USDA Native Status: L48 (N)


From the Image Gallery

3 photo(s) available in the Image Gallery

Plant Characteristics

Duration: Perennial
Habit: Vine
Leaf Retention: Deciduous
Fruit Type: Follicle
Size Notes: Stems climbing, up to about 10 feet long.

Bloom Information

Bloom Color: White , Pink , Purple
Bloom Time: Feb , Mar , Apr , May , Jun , Jul , Aug , Sep , Oct , Nov , Dec


USA: AZ , CA , NM , NV , TX , UT
Native Distribution: Roadsides, Canyons, Hillsides/Slopes
Native Habitat: Roadsides, Canyons, Hillsides, Slopes

Growing Conditions

Water Use: Low
Light Requirement: Part Shade
Soil Moisture: Dry
Soil Description: Caliche type, Sandy, Sandy Loam, Medium Loam, Clay Loam, Clay, Rocky.


Use Ornamental: Twines on fences & other plants, Blooms ornamental, Showy, Attractive
Use Wildlife: Seeds-Granivorous birds, Nesting material.
Conspicuous Flowers: yes
Attracts: Butterflies
Larval Host: Milkweed, Monarch, Queen butterfly.

Butterflies and Moths of North America (BAMONA)

(Danaus plexippus)

Larval Host
Learn more at BAMONA
(Danaus gilippus)

Larval Host
Learn more at BAMONA


Propagation Material: Seeds


Bibref 291 - Texas Wildscapes: Gardening for Wildlife (1999) Damude, N. & K.C. Bender

Search More Titles in Bibliography

Web Reference

Webref 23 - Southwest Environmental Information Network (2009) SEINet - Arizona Chapter

Additional resources

USDA: Find Funastrum cynanchoides ssp. heterophyllum in USDA Plants
FNA: Find Funastrum cynanchoides ssp. heterophyllum in the Flora of North America (if available)
Google: Search Google for Funastrum cynanchoides ssp. heterophyllum


Record Modified: 2023-02-10
Research By: TWC Staff

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