公園是私人和國家所有沒有錯，不能私自采伐也不錯。如果是私人屬地當然沒有征得同意是不能動一草一木的，但是公園絕大部分是公共財產，這裏所能夠采摘的食用野菜可以說100%在美國的劃分是“WEED"，看看下邊關於From Wikipedia關於WEED的定義：簡單一句話WEED就是不要的雜草，在花園草地田野WEED是一大害，就隻說公園每年都花費大量的人力物力來控製消滅WEED，所以在公園挖野菜是在做好事，在幫助公園做鏟除雜草。需要證書才能釣魚，但除了自然公園之外沒有聽說過要證書才能挖WEED，就是自然公園需要證書的也是一些稀有或者珍貴的蔬菜或者藥材。不知道別誤導。至於蚌殼類，各個海灘不一樣，大部分地方是可以自由挖采的，個別地方除外。
This article is about plants specifically called weeds. For other uses, see Weed (disambiguation).
Yellow starthistle, a thistle native to southern Europe and the Middle East that is an invasive weed in parts of North America.A weed in a general sense is a plant that is considered by the user of the term to be a nuisance, and normally applied to unwanted plants in human-made settings such as gardens, lawns or agricultural areas, but also in parks, woods and other natural areas. More specifically, the term is often used to describe native or nonnative plants that grow and reproduce aggressively.[1]
Weeds may be unwanted because they are unsightly, or they limit the growth of other plants by blocking light or using up nutrients from the soil. They also can harbor and spread plant pathogens that can infect and degrade the quality of crop or horticultural plants. Weeds may be a nuisance because they have thorns or prickles, cause skin irritation when contacted, or parts of the plants might come off and attach to fur or clothes.
This article is about plants specifically called weeds. For other uses, see Weed (disambiguation).
Yellow starthistle, a thistle native to southern Europe and the Middle East that is an invasive weed in parts of North America.A weed in a general sense is a plant that is considered by the user of the term to be a nuisance, and normally applied to unwanted plants in human-made settings such as gardens, lawns or agricultural areas, but also in parks, woods and other natural areas. More specifically, the term is often used to describe native or nonnative plants that grow and reproduce aggressively.[1]
Weeds may be unwanted because they are unsightly, or they limit the growth of other plants by blocking light or using up nutrients from the soil. They also can harbor and spread plant pathogens that can infect and degrade the quality of crop or horticultural plants. Weeds may be a nuisance because they have thorns or prickles, cause skin irritation when contacted, or parts of the plants might come off and attach to fur or clothes.
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