| Name | Number | Value |
|---|
| Soil nutrients, | 1.01, | infertile, |
| Soil nutrients, | 1.01, | very infertile, |
| Water nutrients, | 1.01A, | mesotrophic, |
| Water nutrients, | 1.01A, | oligotrophic, |
| Water nutrients, | 1.01A, | mesotrophic, |
| Water nutrients, | 1.01A, | oligotrophic, |
| Soil moisture: 1. water table, | 1.02, | periodically high, |
| Salinity, | 1.05, | fresh, |
| Salinity, | 1.05, | salt-affected, |
| Soil pH: 1. extreme maximum, | 1.06, | 7.32, |
| Water pH: 1. extreme maximum, | 1.06A, | 6.96, |
| Soil pH: 2. extreme minimum, | 1.07, | 2.2, |
| Water pH: 2. extreme minimum, | 1.07A, | 3.37, |
| Soil pH: 3. typical maximum, | 1.08, | 6.22, |
| Water pH: 3. typical maximum, | 1.08A, | 6.22, |
| Soil pH: 4. typical minimum, | 1.09, | 4.74, |
| Water pH: 4. typical minimum, | 1.09A, | 4.74, |
| Shade, | 1.10, | light, |
| Shade, | 1.10, | none, |
| Shade, | 1.10, | none, |
| Maximum depth of leaves, | 1.10A, | <0.5m, |
| Altitude: 1. maximum recorded (m), | 1.12, | 915, |
| Altitude: 1. maximum recorded (m), | 1.12, | 800, |
| Altitude: 2. minimum recorded (m), | 1.13, | 0, |
| Altitude: 2. minimum recorded (m), | 1.13, | 0, |
| Altitude: 4. typical minimum (m), | 1.14, | 0, |
| Flow, | 1.15A, | nil, |
| Flow, | 1.15A, | nil, |
| Status, | 2.01, | native, |
| Typical abundance where naturally occurring, | 2.02, | frequent, |
| Typical abundance where naturally occurring, | 2.02, | frequent, |
| First historical record: 1. date, | 2.04, | 1597, |
| First historical record: 2. site, | 2.05, | Colchester, Essex, |
| Range: 3. continents where native, | 2.11, | Europe, |
| Range: 3. continents where native, | 2.11, | North America, |
| Range: 3. continents where native, | 2.11, | Asia, |
| SN Index, | 2.13, | 5.17, |
| EW Index, | 2.14, | 4.56, |
| British distribution (post 1949 records), | 2.15, | 634, |
| number of European countries in which native, | 2.17, | 23, |
| Stems: 1. woodiness, | 3.01, | non-woody, |
| Stems: 2. support, | 3.02, | self-supporting, |
| Height: 3. typical maximum (cm), | 3.05, | 45, |
| Height: 4. typical minimum (cm), | 3.06, | 15, |
| Spread, | 3.07, | height = width, |
| Heterophylly, | 3.08, | none, |
| Leaf shape: 1. type, | 3.09, | compound, |
| Leaf shape: 2. outline, | 3.10, | toothed, |
| Leaf shape: 3. pointed/round, | 3.11, | pointed, |
| Leaf shape: 4. length versus breadth, | 3.12, | length = width, |
| Leaf shape: 5. leaf base, | 3.13, | cuneate, |
| Leaf shape: 6. petiole, | 3.14, | sessile, |
| Leaf shape: 6. petiole, | 3.14, | petiolate, |
| Leaf shape: 7. minimum petiole length (mm), | 3.15, | 0, |
| Leaf shape: 8. maximum petiole length (mm), | 3.16, | 70, |
| Leaf area (cm2), | 3.17, | 10-100, |
| Leaf longevity: 1. type, | 3.22, | aestival, |
| Photosynthetic pathway, | 4.02, | C3, |
| Heavy metal resistance, | 4.05, | none, |
| Carnivory, | 4.06, | does not kill insects, |
| Nutrition, | 4.07, | autotrophic, |
| Life-form, | 5.01, | helophyte, |
| Vegetative reproduction/persistence: 1. method, | 5.05, | rhizomes, |
| Vegetative reproduction/persistence: 1. method, | 5.05, | rhizomes, |
| Vegetative reproduction/persistence: 2. pattern, | 5.06, | patch-forming, |
| Flowering time: 1. earliest month, | 5.07, | 5, |
| Flowering time: 2. latest month, | 5.08, | 7, |
| Pollen: 2. diameter (um), | 5.13, | 28, |
| Pollen vector, | 5.15, | insect, |
| Pollen vector, | 5.15, | insect, |
| Dicliny, | 5.16, | hermaphrodite, |
| Dichogamy, | 5.17, | entirely protandrous, |
| Dichogamy, | 5.17, | protandrous, |
| Dichogamy, | 5.17, | protandrous, |
| Fertilization, | 5.19, | normally cross, |
| Fertilization, | 5.19, | cross and self, |
| Fertilization, | 5.19, | cross and self, |
| Pollen/ovule ratio, | 5.23, | 2064, |
| Chromosome number(s): 1. number, | 5.25, | 62-64, |
| Chromosome number(s): 1. number, | 5.25, | 35, |
| Chromosome number(s): 1. number, | 5.25, | 42, |
| Chromosome number(s): 1. number, | 5.25, | 28, |
| Dispersule size - length of longest axis (mm), | 5.30, | 1.9, |
| Seed size - length of longest axis (mm), | 5.31, | 1.9, |
| Dispersal agent, | 5.38, | unspecialised, |
| Dispersal agent, | 5.38, | water, |
| Time of germination (season), | 5.39, | spring, |
| Time of germination (season), | 5.39, | summer, |
| Normal method of propagation, | 5.52, | seed and vegetative, |
| Seedbank type, | 5.53, | transient, |
| Seedbank type, | 5.53, | long-term persistent, |
| Seedbank type, | 5.53, | seedbank present, type uncertain, |
| Maximum seedbank density (m2), | 5.54, | 351, |
| Minimum seedbank density (m2), | 5.55, | 50, |
| Mean seedbank density (m2), | 5.56, | 131, |
| Physical defences on leaves, | 6.02, | glabrous, |
| Physical defences on flowers/fruits, | 6.04, | glandular hairs, |
| Conservation Status, | 7.01, | , |
| Rarity Status, | 7.02, | Present, |
| Change Index, | 7.03, | -0.21, |
| Biome, | 7.04, | Boreo-Temperate, |
| Eastern Limit, | 7.05, | Circumpolar, |
| Continentality, | 7.06, | Not continental, |
| Northern Limit in Britain, | 7.07, | No, |
| Northern European Limit (Lat, 5?Ǭ? band), | 7.08, | , |
| Southern European Limit (Latitude, 5?Ǭ? band), | 7.09, | , |
| Southern European Limit, | 7.10, | No Data, |
| January mean temperature, | 7.11, | 3.40000009536743, |
| July mean temperature, | 7.12, | 14, |
| Annual precipitation, | 7.13, | 1186, |
| Ellenberg Indicator: Light, | 7.14, | 8, |
| Ellenberg : Moisture, | 7.15, | 9, |
| Ellenberg: pH, | 7.16, | 5, |
| Ellenberg Indicator: Nitrogen, | 7.17, | 3, |
| Ellenberg Indicator: Salt, | 7.18, | 0, |
| Life Form: normal state, | 7.19, | Non-bulbous geophyte, |
| Life Form: less frequent state, | 7.20, | Perennial hydrophyte, |
| Clonality: normal state, | 7.21, | Rhizome far creeping, |
| Clonality: less frequent state, | 7.22, | , |
