BioImages: The Virtual Field-Guide (UK)
Persicaria (knotweeds)
Subtaxa
| Rank | Taxon |  |
 |
 |
|---|---|---|---|---|
| Species | Persicaria amphibia (L.) Gray (Amphibious Bistort) | 2 | 12 | |
| Species | Persicaria bistorta (L.) Samp. (Common Bistort) | 6 | 10 | |
| Species | Persicaria hydropiper (L.) Spach (Water-pepper) | 20 | 5 | |
| Species | Persicaria lapathifolia (L.) Gray (Pale Persicaria) | 6 | ||
| Species | Persicaria laxiflora (Weihe) Opiz (Tasteless Water-pepper) | 2 | ||
| Species | Persicaria maculosa Gray (Redshank) | 5 | 15 | 14 |
| Species | Persicaria minor (Hudson) Opiz (Small Water-pepper) | 1 | ||
| Species | Persicaria vivipara (L.) Ronse Decraene (Alpine Bistort) | 1 | 8 |
Suggested Literature
Identification Works
| Lansdown R.V. & Pankhurst T.J. | Privately published |
Persicaria may also be covered by literature listed under:
Feeding and other inter-species relationships
Associated with Persicaria:
| leaf (underside) (rolled) | rolled leaf (underside) is grazed by larva | Pachynematus albipennis - a sawfly (Hymenoptera: Tenthredinidae) | 
|
Benson, R.B., 1958 | |
 |
stem (dead, lying in water) | dead, lying in water stem is decayed by stalked apothecium | Hymenoscyphus scutula - a discomycete (Helotiales: Helotiaceae) | Ellis, M.B. & J.P., 1997 |
Persicaria may be associated with more taxa listed at higher taxonomic level
|
MAGNOLIOPSIDA (flowering plants) |
MAGNOLIIDAE (dicotyledonous flowering plants) |
POLYGONACEAE (docks and knotgrasses) |
References
| Benson, R.B., 1958 | Hymenoptera: 2. Symphyta. Section (c) |
| Ellis, M.B. & J.P., 1997 | Microfungi on Land Plants: An Identification Handbook |
