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Cynanchum barbigerum (Bearded swallow-wort)
Lytle, Melody

Cynanchum barbigerum

Cynanchum barbigerum (Scheele) Shinners

Bearded Swallow-wort, Thicket Threadvine

Asclepiadaceae (Milkweed Family)

Synonym(s): Metastelma barbigerum


USDA Native Status: L48 (N)


From the Image Gallery

6 photo(s) available in the Image Gallery

Plant Characteristics

Duration: Perennial
Habit: Vine
Fruit Type: Follicle
Size Notes: Stems twining, up to about 6 feet long.

Bloom Information

Bloom Color: White
Bloom Time: Mar , Apr , May , Jun , Jul , Aug , Sep , Oct


Native Habitat: Climbing vine on boulders and shrubs in South Texas and Edwards Plateau.

Growing Conditions

Light Requirement: Sun
Conditions Comments: Needs support or something to grow on; attracts Varigated Fritillary Butterfly.


Attracts: Butterflies
Deer Resistant: High

From the National Organizations Directory

According to the species list provided by Affiliate Organizations, this plant is on display at the following locations:

Lady Bird Johnson Wildflower Center - Austin, TX
Brackenridge Field Laboratory - Austin, TX

Herbarium Specimen(s)

NPSOT 0681 Collected Jul 18, 1992 in Bandera County by Harry Cliffe
NPSOT 0490 Collected Jun 23, 1993 in Bexar County by Mike Fox

2 specimen(s) available in the Digital Herbarium

Web Reference

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

Additional resources

USDA: Find Cynanchum barbigerum in USDA Plants
FNA: Find Cynanchum barbigerum in the Flora of North America (if available)
Google: Search Google for Cynanchum barbigerum


Record Modified: 2023-02-03
Research By: NPC

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