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Gardening with Indigenous Plants
Indigenous Plant Use
Identification & Control of Common Weeds
Botanical Name:Persicaria decipiens
3 synonyms:   Persicaria minor ssp. decipiens , Polygonum decipiens , Polygonum minus ssp. decipiens
Common Name:slender knotweed
Sold As:Tube ($2.00)
Ground Cover (up to 30 cm), Low Growing Shrub (30 cm to 1 m), Bird Attracting, Aquatic
Full Sun, Partial Shade, Shade
Boggy, Poorly Drained, Aquatic
60-80 cm x 1 m
Foliage:Mid green lance-shaped leaves with dark blotch near the centre, 4-15 cm x 7-25 mm, margins and main veins bristly.
Flowers:Deep Pink narrow cylindric, dense erect terminal spikes 2-6 cm long of tiny flowers on stalk 2-6 cm long. Flowers most of the year, peaking December to April

Erect to spreading perennial herb forming thickets. Sheath at base of leaf bristly along top margin. Excellent waterbird habitat. Can be used in wet depressions or around farm dams. Birds like the leaves and seeds, good frog habitat.

Likely pollinators of its flowers are insects, including honeybees, native bees, flies, wasps and small butterflies.

  1. Whitehorse Council
  2. Yarra Ranges Council (Victora, close to us)
  3. Royal Botanic Gardens Victoria (VICFLORA, technical, good photos)
  4. Wikipedia (free online encyclopedia)
  5. Agriculture Victoria
  6. Royal Botanic Gardens (Kew UK, technical)

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