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Search for native plants by scientific name, common name or family. If you are not sure what you are looking for, try the Combination Search or our Recommended Species lists.

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Bartonia paniculata (Twining screwstem)
Cressler, Alan

Bartonia paniculata

Bartonia paniculata (Michx.) Muhl.

Twining Screwstem

Gentianaceae (Gentian Family)


USDA Symbol: BAPA2

USDA Native Status: L48 (N), CAN (N), SPM (N)

Plants may be parasitic or hemiparasitic on the roots of other plants or trees. Screw-stems are thus named because the shoots are often twisted (even twining), with the leaves arranged spirally.


From the Image Gallery

14 photo(s) available in the Image Gallery

Plant Characteristics

Duration: Annual
Habit: Vine
Leaf Arrangement: Alternate
Leaf Complexity: Simple
Leaf Margin: Entire
Fruit Type: Capsule
Size Notes: 20-40 cm in height.

Bloom Information

Bloom Color: Pink
Bloom Time: Aug , Sep , Oct


USA: AL , AR , CT , DC , DE , FL , GA , IL , KY , LA , MA , MD , ME , MI , MO , MS , NC , NH , NJ , NY , OK , PA , RI , SC , TN , TX , VA
Canada: NB , NL , NS , PE
Native Distribution: Florida to Louisiana, north to southern New England and Nova Scotia, west through southern New York to Okalahoma.
Native Habitat: Wet peat and sand.

National Wetland Indicator Status

This information is derived from the U.S. Army Corps of Engineers National Wetland Plant List, Version 3.1 (Lichvar, R.W. 2013. The National Wetland Plant List: 2013 wetland ratings. Phytoneuron 2013-49: 1-241). Click here for map of regions.

From the National Organizations Directory

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

Crosby Arboretum - Picayune, MS
Natural Biodiversity - Johnstown, PA

Additional resources

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


Record Modified: 2018-03-07
Research By: TWC Staff

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