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Annex I: Bioindicator species tables
Ordered by soil characteristic
| Species | Botanical Family | Typology | Trustability |
| Soil Reaction | |||
| Chrysanthemum leucanthemum syn. Leucanthemum vulgare As | Asteraceae | Acidic soil | M |
| Gnaphalium uliginosum | Asteraceae | Acidic soil | M |
| Hieracium aurantiacum syn. Pilosella aurantiaca | Asteraceae | Acidic soil | H |
| Hieracium pratense syn. H. caespitosum, Pilosella caespitosa | Asteraceae | Acidic soil | H |
| Polygonum aviculare | Polygonaceae | Acidic soil | M |
| Polygonum persicaria syn. Persicaria maculosa | Polygonaceae | Acidic soil | M |
| Portulaca oleracea | Portulacaceae | Acidic soil | M |
| Potentilla argentea | Rosaceace | Acidic soil | M |
| Potentilla monspeliensis | Rosaceace | Acidic soil | M |
| Rumex acetosella | Polygonaceae | Acidic soil | H |
| Rumex crispus | Polygonaceae | Acidic soil | M |
| Sonchus spp. | Asteraceae | Acidic soil | H |
| Spergula arvensis | Caryophyllaceae | Acidic soil | H |
| Verbascum spp. | Scrophulariaceae | Acidic soil | M |
| Viola arvensis | Violaceae | Acidic soil | H |
| Anagallis arvensis | Primulaceae | Alkaline soil | H |
| Anthemis nobilis syn. Chamaemelum nobilis | Asteraceae | Alkaline soil | M |
| Chenopodium spp. | Chenopodiaceae | Alkaline soil | M |
| Daucus carota | Apiaceae | Alkaline soil | M |
| Lepidium virginicum | Brassicaceae | Alkaline soil | M |
| Water availability | |||
| Amaranthus retroflexus | Amaranthaceae | Dry soil | M |
| Euphorbia maculata | Euphorbiaceae | Dry soil | M |
| Medicago lupulina | Fabaceae | Dry soil | M |
| Althaea officinalis | Malvaceae | Humid soil | M |
| Apios americana | Fabaceae | Humid soil | M |
| Carex lasiocarpa | Cyperaceae | Humid soil | H |
| Echinochloa crus‐galli | Graminaceae | Humid soil | M |
| Equisetum arvense | Equisetaceae | Humid soil | H |
| Impatiens pallida | Balsaminaceae | Humid soil | M |
| Lychnis flos‐cuculi | Caryophyllaceae | Humid soil | M |
| Poa annua | Graminaceae | Humid soil | H |
| Podophyllum peltatum | Berberidaceae | Humid soil | M |
| Polygonum pensylvanicum | Polygonaceae | Humid soil | M |
| Polygonum persicaria syn. Persicaria maculosa | Polygonaceae | Humid soil | H |
| Ranunculus spp. | Ranunculaceae | Humid soil | H |
| Rumex acetosella | Polygonaceae | Humid soil | M |
| Tussilago farfara | Asteraceae | Humid soil | H |
| Typha latifolia | Typhaceae | Humid soil | M |
| Soil compaction | |||
| Euphorbia maculata | Euphorbiaceae | Compaction | H |
| Galium aparine | Rubiaceae | Compaction | H |
| Plantago major | Plantaginaceae | Compaction | H |
| Poa annua | Graminaceae | Compaction | H |
| Polygonum aviculare | Polygonaceae | Compaction | H |
| Soil texture | |||
| Allium vineale | Liliaceae | Clayey soil | M |
| Bellis perennis | Asteraceae | Clayey soil | M |
| Plantago major | Plantaginaceae | Clayey soil | H |
| Ranunculus spp. | Ranunculaceae | Clayey soil | M |
| Ranunculus repens | Ranunculaceae | Clayey soil | M |
| Rumex obtusifolius | Polygonaceae | Clayey soil | H |
| Taraxacum officinale | Asteraceae | Clayey soil | M |
| Centaurea cyanus | Asteraceae | Sandy soil | M |
| Centaurea melitensis | Asteraceae | Sandy soil | M |
| Convolvulus arvensis | Convolvulaceae | Sandy soil | M |
| Eupatorium capillifolium | Asteraceae | Sandy soil | M |
| Lactuca tatarica var. pulchella | Asteraceae | Sandy soil | M |
| Linaria vulgaris | Scrophulariaceae | Sandy soil | M |
| Urtica dioica | Urticaceae | Sandy soil | H |
| Viola arvensis | Violaceae | Sandy soil | H |
| Soil fertility | |||
| Arctium minus | Asteraceae | High fertility | M |
| Chenopodium album | Chenopodiaceae | High fertility | H |
| Phytolacca americana | Phytolaccaceae | High fertility | M |
| Poa annua | Graminaceae | High fertility | M |
| Portulaca oleracea | Portulacaceae | High fertility | M |
| Stellaria media | Caryophyllaceae | High fertility | H |
| Taraxacum officinale | Asteraceae | High fertility | H |
| Andropogon spp. | Graminaceae | Low fertility | M |
| Linaria vulgaris | Scrophulariaceae | Low fertility | M |
| Lotus corniculatus | Fabaceae | Low fertility | M |
| Rumex acetosella | Polygonaceae | Low fertility | M |
| Verbascum spp. | Scrophulariaceae | Low fertility | M |
H: high reliability (information from > 3 bibliographic sources)
M: medium reliability (information from at least 2 sources)
Carlesi & Bàrberi (2017): Weeds as soil bioindicators: How to sample and use data. FertilCrop Technical Note. Download at www.fertilcrop.net