Scientific Name: Persicaria maculosa ( syn. Polygonum persicaria ) Form: Oval - horizontal, Irregular
Common Name:smartweed, lady's thumbTexture:Medium
Family Name:PolygonaceaeHabit: Spreading, Upright, Arching, Open
Plant Type: Annual, Invasive plant, Weed (horticultural) Mature Size (ht. X w.):0.4 - 0.7m x 0.6 - 1.0m
Origin: Europe Hardiness Zone:Zone 1: (below -46 C)
Leaves: Simple, Alternate, Heavily veined, Soft flexible, Pubescent, Ovate, Lanceolate, Elliptic, Ciliate
Flowers: Spike, (Floriferous), Pink, White, Sep- Aug- Jul
Fruit: Achene, Brown, Nov- Oct
Exposure: Full sun, Part sun/part shade, Filtered shade
Soil or Media: Well-drained
Landscape Uses: Fall interest, Group or mass planting, Erosion control, Fragrance, Wetland - bogs, Medicinal plant
Key ID Features:Erect reddish stems with swollen joints; leaves alternate, lanceolate, usually dark spotted, 3-10 cm long; stipules fused into a stem-enclosing sheath that is loose and fringed with bristly hairs on top; inflorescence a dense spike, often nodding; achenes 2-3 mm long, shiny and almost black.