Polygonum convolvulus L. Polygonum convolvulus L. var. convolvulus Bilderdykia convolvulus (L.) Dumort. Fallopia convolvulus (L.) Á. Löve Reynoutria convolvulus (L.) Shinners Tiniaria convolvulus (L.) Webb & Moq. Fallopia convolvulus (L.) A. Löve Black bindweed, wild buckwheat, false buckwheat
Wild buckwheat is a European native. It is a vine that snakes along the ground or clambers over other plants or anything else it can latch onto, winding itself in a clockwise direction around supports. Plants are up to 3' (1 m) long. At points where leaves attach there is an ocrea, or sheath. Leaves are alternate and roughly triangular to heart-shaped, with smooth edges. The lower corners of each triangle are pointed inward toward the leaf petiole (stem). Leaves are ½-2" (1.5-6 cm) × ¼-1" (7-30 mm) wide. Flowers are small, ⅛" (4 mm) each, in long thin clusters, sort of weird-looking, greenish-white to greenish-pink. |
9/18/2010 · Nashua River Rail Trail, Groton Center, Groton, Massachusetts 9/18/2010 · Nashua River Rail Trail, Groton Center, Groton, Massachusetts 9/11/2010 · Nashua River Rail Trail, Groton Center, Groton, Massachusetts |
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Convolvulus arvensis |
You are here Polygonum convolvulus |
Polygonum scandens |
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Plant | Vines are 20-79" (50-200 cm) high. | Vine up to 3' (1 m) long. At leaf nodes there is an ocrea. | Vines up to 20' (6.1 m) long. Stems are light green to bright red, almost hairless. Where leaves attach to the stem, there is a protective sheath, or ocrea | ||||||||||||||||||||||||||
Flowers | Trumpet-shaped, ⅜-⅞" (1-2.5 cm) in diameter, and white or pale pink. Small bracts are separate from the flowers. | Small, greenish-pink to greenish-white, in racemes (bunches); individual flowers are ⅛" (4 mm) long, racemes are up to 2½" (6.3 cm) long | Racemes are 2-8" (5-20 cm) long, with small greenish flowers. | ||||||||||||||||||||||||||
Leaves | ¾-1¾" (2-5 cm) × ⅜-1" (1-3 cm) wide, either linear or shaped like arrowheads (sagittate). | Alternate, triangular or heart-shaped, lower corners of leaves aim inward toward the petiole (leaf stem) | Ovate, approaching sagittate (shaped like an arrowhead), up to 2" (5 cm) × 4" (10 cm). Leaf petioles are up to 1½" (3.8 cm) long | ||||||||||||||||||||||||||
Fruit | Seeds ⅛" (3.2 mm) long, with two flat sides and a convex side, like an orange segment. | Three-sided, with a single dull black seed | Greenish, with white or pink borders. | ||||||||||||||||||||||||||
Range/ Zones |
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Type | Wild | Wild | Wild |
Online References:
Polygonum convolvulus on the Virginia Tech Weed Identification Guide
Polygonum convolvulus on Ontario Wildflowers
Polygonum convolvulus on Wikipedia
Polygonum convolvulus on CalPhotos
Polygonum convolvulus on SEINet—the Southwest Environmental Information Network
References:
Note the climbing False Buckwheat (Polygonum scandens) overtaking the loosestrife. · 7/28/2009 · Near Nashua River Boat Ramp, Groton, Massachusetts
≈ 30 × 44" (75 × 112 cm)
9/3/2009 · Nashua River Rail Trail, Ayer, Massachusetts
≈ 6 × 9" (14 × 22 cm) ID is uncertain
9/18/2010 · Nashua River Rail Trail, Groton Center, Groton, Massachusetts
≈ 8 × 5" (19 × 13 cm) ID is uncertain
Polygonum convolvulus description by Thomas H. Kent, last updated 16 Sep 2020.
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9/3/2009 · Nashua River Rail Trail, Ayer, Massachusetts
≈ 5 × 8" (13 × 19 cm) ID is uncertain
9/3/2009 · Nashua River Rail Trail, Ayer, Massachusetts
≈ 9 × 6" (23 × 15 cm) ID is uncertain
9/3/2009 · Nashua River Rail Trail, Ayer, Massachusetts
≈ 6 × 9" (14 × 22 cm) ID is uncertain
Range: