Fallopia sandens - Banner
Image Information
Location: Searcy County, Arkansas
Month of Photograph: October
Distribution Map: Fallopia scandens - Distribution Map Spacer
USDA, NRCS. 2012. The PLANTS Database (http://plants.usda.gov, 16 January 2012). National Plant Data Team, Greensboro, NC 27401-4901 USA. Spacer Guests can be assured that there is established evidence that this plant has been found in all of the green filled counties of Arkansas. However, the white filled counties should not be interpreted as counties in which this plant does not grow. They should instead be interpreted as counties which lack officially sanction evidence of the plants presence there.

Family: Polygonaceae

Flowers

Fallopia scandens - x "
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Fallopia scandens - Flowers

 

Fallopia scandens - winged fruitWinged Fruit
Fallopia scandens - Winged FruitWinged Fruit and Flowers
Fallopia scandens - Leaf AdaxialLeaf, adaxial
Fallopia scanden - Leaf AbaxialLeaf, abaxial
Vine
Fallopia scanden - Vine

Flowers and Winged Fruit
Fallopia scanden - Winged Fruit

Physical Description, Encyclopedia of Life, by Dr. John Hilty

This native perennial plant is a twining vine up to 20' long that can climb adjacent vegetation and fences, otherwise it sprawls across the ground. The slender stems are light green to bright red and round, angular, or slightly ridged. They are largely hairless, except for minute stiff hairs along the ridges. At the base of the petioles, the stems are slightly swollen and have short ocreae (membranous sheaths) that are without bristles. The alternate leaves are up to 4" long and 2" across (excluding the petioles). They are cordate or ovate, smooth along the margins, hairless, and indented at the base. Their slender petioles are up to 1½" long and similar in appearance to the stems. The lower leaves have long petioles, while the smaller upper leaves are nearly sessile. From the axils of the leaves, there develops one or more racemes of flowers about 2-8" long. These racemes are usually more or less erect (although sometimes horizontal) and their central stalks are often terete with numerous fine ridges. The greenish white flowers occur in loose whorls along these racemes. They are initially semi-erect while in bloom, but dangle downward from their slender pedicels while developing

their fruits. Each flower is about 1/6" long, consisting of 5 greenish white tepals, 8 stamens, and an ovary with a tripartite style. The 3 outer tepals are conspicuously winged. The wings of these tepals can be smooth, undulate, or slightly jagged. The blooming period occurs from mid-summer to early fall and lasts about 1-2 months. Each flower is replaced by a winged fruit about 1/3" long that consists of the 3 outer tepals enclosing a single achene. This fruit is initially greenish white like the flower, but it eventually becomes brown. The 3-angled achenes are about 1/8" in length (or slightly longer). They are dark brown or black and shiny. The mature fruits can float on water or be blown about by the wind, thereby distributing the achenes. This plant reproduces by reseeding itself and can form sizable colonies at favorable sites.

 

 

Hilty, John, editor. "Fallopia scandens, Detail, Comments" Encyclopedia of Life, available from http://eol.org/pages/595605/overview. Accessed 31 July 2013.