Grindelia squarrosa

A form with rayless flowers is sometimes considered a distinct species.

Grindelia squarrosa, also known as a curly-top gumweed or curlycup gumweed, is a small North American biennial or short-lived perennial plant.

It is native to western and central North America, from British Columbia east to Québec and New England, and south as far as California, Arizona, Chihuahua, and Texas. The species may possibly be naturalized in much of the eastern part of that distribution.

单词	Grindelia squarrosa
释义	Grindelia squarrosa 英语百科 Grindelia squarrosa Grindelia squarrosa, also known as a curly-top gumweed or curlycup gumweed, is a small North American biennial or short-lived perennial plant. It is native to western and central North America, from British Columbia east to Québec and New England, and south as far as California, Arizona, Chihuahua, and Texas. The species may possibly be naturalized in much of the eastern part of that distribution.
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