Species
Poa annua L., 1753 () 
Species data
| MNHN species code | 7075 |
| abbrevation | Poaannu (ES) |
| botanical genus | Poa |
| botanical family | Poaceae |
| phytosociologic indication | |
| regne | Plantae |
| phylum | |
| classe | Equisetopsida |
| ordre | Poales |
| famille | Poaceae |
| CD_TAXSUP | 196467 |
| rang | ES |
| habitat | 7 |
| statut | P |
identification
| main french name | Pâturin annuel [Poa annua L., 1753] |
| main english name | Annual Meadow-grass |
| main german name | Einjähriges Rispengras |
| main spanish name | |
| Code_BDNFF | |
Species Synonyms
| name |
language_id |
|
Annual Blue Grass |
English |
|
Dwarf Meadow Grass |
English |
|
Low Spear Grass |
English |
|
Strassengras |
Deutsch |
|
Spitzgras |
Deutsch |
|
Kleines Rispengras |
Deutsch |
|
Jähriges Rispengras |
Deutsch |
|
Aira pumila Pursh, 1814 |
Latin |
|
Catabrosa pumila (Pursh) Roem. & Schult., 1817 |
Latin |
|
Poa humilis Lej., 1811 |
Latin |
|
Poa annua L. |
Latin |
Gallery
agronomy
| forage category | Poor grasses |
| forage value | 2 |
| unpaletable species | Non |
| value for horse | 3 |
| 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 | 0 |
| continentality | 5 |
| resistance to flooding | No |
| adpatation to wet and dry conditions | Non |
soil
| soil moisture | 6 |
| nitrogen soil fertility | 8 |
| pH | 0 |
| salinity | 1 |
| soil organic matter content | |
| phosphorus soil fertility | 0 |
| potassium soil fertility | |
management
| resistance to fire | |
| resistance to trampling | 10 |
| cutting resistance | 8 |
life traits
| life cycle | Annual |
| raunkier classification | Therophyte |
| CSR strategy | R |
| specific leaf area | |
| leaf dry matter content | |
| Functional Orphée INRA Toulouse | |
diaspores
| diaspore_weight | |
| diaspore shape | |
| seed bank longevity | >5 years |
| diaspore type | >5 years |
| fructification sum of temperature | |
| fructification beginning date | |
| fructification_ending | |
dispersion
| dispersion sum of temperature | |
| dispersion beginning date | June |
| dispersion ending date | July |
| dispersion mode | Anemochorous |
| dispersion organ | Fruit |
| dispersion : additional data | Light glider (_) |
| diaspore number per dispersion | 1-1000 |
germination
| germination season | June-July |
| germination sum of temperature | |
| germination beginning date | |
| germination ending date | |
| optimal germination temperature | 5-35°C |
| minimal germination temperature | 2-5°C |
| maximal germination temperature | 35°C |
aerial part
| aerial axis base structure | Tuft |
| aerial axis | Erected stem |
| aerial part characteristics | Short and slim |
| aerial part height | 0,1-0,2 m |
| branching | Basitony |
| lignification of aerial part | Non woody |
leaves
| leaf life span | Oct Nov Déc Janv Fév Mars Avr |
| leaf nitrogen content | |
| leaf dry matter content | |
| leaf anatomy | Hygromorphe (Graminéenne) |
| leaf shape | 2-20 cm² |
| leaf area | |
| leaf width | 1-10 mm |
| leaf length | |
| leaf distribution | Répartition régulière |
roots
| root type | Fasciculé |
| root depth | 2 (0-50 cm) |
| root lateral_expansion | Un seul axe racinaire |
| root length | |
| root diameter | |
| root organ | Non |
reproduction
| vegetative reproduction | Exclusivement par semis |
| type of reproduction | |
| flowering sum of temperature | |
| reproduction beginning date | Mars |
| flowering ending date | Juin |
| flower dominant colour | Verdâtres parfois violacées |
Pollination
| Pollinator insects | |
| pollination | |
| Main color | |
| UV reflection | |
| Pollen | |
| Nectar | |
Relevés where species is present
Samples :
1325 Percent :
13250.00
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