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twining screwstem
Scientific Name: Bartonia paniculata ssp. iodandra
Family: Gentianaceae
Category: Dicot
Growth: Vine, Forb/herb
Duration: Annual, Biennial
Other Names:
Twining Screwstem (Bartonia paniculata)
Bartonia paniculata, commonly known as twining screwstem, is an inconspicuous annual or biennial plant found in wetland environments.
Taxonomy and Nomenclature
- Scientific Name: Bartonia paniculata (Michx.) Muhl.
- Family: Gentianaceae
- Rank: Species
- Subspecies:
- Bartonia paniculata ssp. iodandra (B.L. Rob.)
- Bartonia paniculata ssp. paniculata
- Synonyms/Alternative Names: Branched bartonia, panicled screwstem, twining bartonia.
Distribution and Habitat
- Twining screwstem is an obligate wetland species.
- It is found from New England and occurs in states such as Alabama, Arkansas, Maryland, Oklahoma, and Wisconsin.
- Specific locations mentioned include Jackson Co., Wisconsin and Worcester County, Maryland.
Ecological Role
- Twining screwstem is possibly a saprophytic mycotroph, obtaining nutrients from decaying organic matter with the help of fungi.
- It is susceptible to shading caused by exotic plant species and succession in its habitat.
Morphological Characteristics and Growth Habits
- It is described as a vine or forb/herb.
- It has twisted or twining shoots.
- Flower color is white.
Further Information
- Endangered Resources Program
- Discover Life
- ResearchGate
- USDA Plants Database: http://plants.usda.gov/java/profile?symbol=BAPA2