Species
Knautia arvensis (L.) Coult., 1828 () 
Species data
| MNHN species code | 2588 |
| abbrevation | Knaarve (ES) |
| botanical genus | Knautia |
| botanical family | Dipsacaceae |
| phytosociologic indication | |
| regne | Plantae |
| phylum | |
| classe | Equisetopsida |
| ordre | Dipsacales |
| famille | Caprifoliaceae |
| CD_TAXSUP | 104516 |
| rang | SSES |
| habitat | 7 |
| statut | P |
| CD_NOM_MNHN | |
identification
| main french name | Knautie des champs [Knautia arvensis (L.) Coult., 1828] |
| main english name | Field Scabious |
| main german name | Wiesen Witwenblume |
| main spanish name | |
| Code_BDNFF | |
Gallery
agronomy
| forage category | Poor various species |
| forage value | 2 |
| unpaletable species | Non |
| value for horse | |
| Value for cattle | |
| vallue for sheep | |
| Value for goat | |
| forage quality stage 1 | |
| forage quality stage 2 | |
| forage quality stage 3 | |
patrimony
| red list | |
| regional protection | |
climate
| light | 7 |
| annual temperature index | 6 |
| continentality | 3 |
| resistance to flooding | No |
| adpatation to wet and dry conditions | Non |
soil
| soil moisture | 4 |
| nitrogen soil fertility | 5 |
| pH | 0 |
| salinity | 0 |
| soil organic matter content | mull mésotrophe |
| phosphorus soil fertility | 0 |
| potassium soil fertility | |
management
| resistance to fire | |
| resistance to trampling | 4 |
| cutting resistance | 4 |
life traits
| life cycle | Perennial |
| raunkier classification | Hemicryptophyte / Geophyte |
| CSR strategy | CR |
| specific leaf area | |
| leaf dry matter content | |
| Functional Orphée INRA Toulouse | |
diaspores
| diaspore_weight | |
| diaspore shape | |
| seed bank longevity | <1 year |
| diaspore type | <1 year |
| fructification sum of temperature | |
| fructification beginning date | |
| fructification_ending | |
dispersion
| dispersion sum of temperature | |
| dispersion beginning date | September |
| dispersion ending date | October |
| dispersion mode | Barochorous / Zoochorous |
| dispersion organ | Seed |
| dispersion : additional data | Seed |
| diaspore number per dispersion | 1001-10000 |
germination
| germination season | April to June |
| germination sum of temperature | |
| germination beginning date | |
| germination ending date | |
| optimal germination temperature | |
| minimal germination temperature | |
| maximal germination temperature | |
aerial part
| aerial axis base structure | Several basal stem |
| aerial axis | Erected stem |
| aerial part characteristics | Short and strong |
| aerial part height | 0,3-0,6 m |
| branching | Acrotony |
| lignification of aerial part | Non woody |
leaves
| leaf life span | Juin Juil Aou Sept |
| leaf nitrogen content | |
| leaf dry matter content | |
| leaf anatomy | Mésomorphe (Malacophylle / Microphylle) |
| leaf shape | 2-20 cm² |
| leaf area | |
| leaf width | |
| leaf length | |
| leaf distribution | Répartition régulière |
roots
| root type | Pivotant / Rhizome / Stolon |
| root depth | 8 (0- > 100 cm) |
| root lateral_expansion | Plusieurs axes (Clonal) |
| root length | |
| root diameter | |
| root organ | Non |
reproduction
| vegetative reproduction | Surtout par semis / Voie vgtat |
| type of reproduction | Bourgeons régénératifs après blessure / Organes de réserve dissémination ou expansion |
| flowering sum of temperature | |
| reproduction beginning date | Septembre |
| flowering ending date | Novembre |
| flower dominant colour | Rose ou lilas |
Pollination
| Pollinator insects | abeilles - bourdons - guêpes - syrphes - bombilidés |
| pollination | |
| Main color | blue |
| UV reflection | 0-7% extérieur et intérieur |
| Pollen | |
| Nectar | moyen |
Relevés where species is present
Samples :
1056 Percent :
10560.00
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