White and green leaf plant

This one just covers the ground with its many leaves(white and green) under shady areas. My camera is not that good so their colour appears really light due to the bright flash but in reality, they're deeper...

 

Welcome Edwise.
Looks like Lamium galeobdolon subsp. montanum "Florentinum"

https://www.google.co.uk/search?q=L...f.,cf.osb&fp=5423dc040df7cb7&biw=1091&bih=525

 

Thanks, really like the leaves' appearance...Found its Chinese translation as well - galeobdolon "小野芝麻属"...

 

Regarded as a nuisance element in the local ecology.

 

You are bang on there.....what a total nuisance. It got loose in a large Forsythia here.
The only way I could get rid of it was to paint RoundUp on the leaves.

Ken