Medicago sativa L.
Captura: Llanars, Vall de Camprodon, Ripollès, Catalunya.
CATALÀ
L'alfals, userda, melga, mèliga o herbaalfals (Medicago sativa) és una planta de la família de les papilionàcies. És una planta herbàcia perenne amb fulles trifoliades, àpexs foliolars dentats, inflorescències blavoses i fruit en llegum enrotllats en hèlix (orbiculars) amb un cert nombre de llavors. El nom alfals prové d'una paraula àrab que significa ‘el millor aliment’.
ENGLISH
Alfalfa seed production requires the presence of pollinators when the fields of alfalfa are in bloom.[16] Alfalfa pollination is somewhat problematic, however, because western honey bees, the most commonly used pollinator, are less than ideal for this purpose; the pollen-carrying keel of the alfalfa flower trips and strikes pollinating bees on the head, which helps transfer the pollen to the foraging bee.[16] Western honey bees, however, do not like being struck in the head repeatedly and learn to defeat this action by drawing nectar from the side of the flower. The bees thus collect the nectar, but carry no pollen, so do not pollinate the next flower they visit.[69] Because older, experienced bees do not pollinate alfalfa well, most pollination is accomplished by young bees that have not yet learned the trick of robbing the flower without tripping the head-knocking keel.
WIKIPEDIA
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Medicago sativa L.
Captura: Llanars, Vall de Camprodon, Ripollès, Catalunya.
CATALÀ
L'alfals, userda, melga, mèliga o herbaalfals (Medicago sativa) és una planta de la família de les papilionàcies. És una planta herbàcia perenne amb fulles trifoliades, àpexs foliolars dentats, inflorescències blavoses i fruit en llegum enrotllats en hèlix (orbiculars) amb un cert nombre de llavors. El nom alfals prové d'una paraula àrab que significa ‘el millor aliment’.
ENGLISH
Alfalfa seed production requires the presence of pollinators when the fields of alfalfa are in bloom.[16] Alfalfa pollination is somewhat problematic, however, because western honey bees, the most commonly used pollinator, are less than ideal for this purpose; the pollen-carrying keel of the alfalfa flower trips and strikes pollinating bees on the head, which helps transfer the pollen to the foraging bee.[16] Western honey bees, however, do not like being struck in the head repeatedly and learn to defeat this action by drawing nectar from the side of the flower. The bees thus collect the nectar, but carry no pollen, so do not pollinate the next flower they visit.[69] Because older, experienced bees do not pollinate alfalfa well, most pollination is accomplished by young bees that have not yet learned the trick of robbing the flower without tripping the head-knocking keel.
WIKIPEDIA
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
Gracias amigos Flickeros por visitar mi galería, por sus comentarios y favoritos. Tened todos un magnífico día.
NOTICE
Thank you Flicker friends for visiting my gallery, for your comments and favorites. Wish you wonderful day.
COMPTE!
Gràcies amics Flickers per visitar la meva galeria, pels vostres comentaris i favorits. Tingueu un dia estupend.
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