''Grindelia'' (gumweed) is a genus of plants native to the Americas belonging to the family

Asteraceae The family Asteraceae, alternatively Compositae, consists of over 32,000 known species of flowering plants in over 1,900 genera within the order Asterales. Commonly referred to as the aster, daisy, composite, or sunflower family, Compositae w ...

. The genus was named for

Latvia Latvia ( or ; lv, Latvija ; ltg, Latveja; liv, Leţmō), officially the Republic of Latvia ( lv, Latvijas Republika, links=no, ltg, Latvejas Republika, links=no, liv, Leţmō Vabāmō, links=no), is a country in the Baltic region of ...

n botanist

David Hieronymus Grindel David Hieronymus Grindel (1776-1836) was a botanist ( bryologist). Plant genus ''Grindelia ''Grindelia'' (gumweed) is a genus of plants native to the Americas belonging to the family Asteraceae. The genus was named for Latvian botanist David ...

, 1776–1836. They are herbaceous plants or subshrubs with annual, biennial, or perennial life cycles. The flowerheads are composed of numerous yellow disc florets (usually between 100–200) and from zero to sixty or more yellow or orange ray florets. ''

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. Description ''G. squarrosa'' is a decumbent to erect, much-branched perennial herb or subshrub gro ...

'', a plant with bright yellow flowers indigenous to much of the United States, is commonly called curlycup gumweed. ''

Grindelia robusta ''Grindelia'' (gumweed) is a genus of plants native to the Americas belonging to the family Asteraceae. The genus was named for Latvian botanist David Hieronymus Grindel, 1776–1836. They are herbaceous plants or subshrubs with annual, biennial ...

'', found in the western states, is a coastal scrub bush that is reputed to have several medicinal uses. Hairy gumweed, '' Grindelia cuneifolia'', occurs in brackish coastal marshes of western North America, such as in some portions of the

San Francisco Bay San Francisco Bay is a large tidal estuary in the U.S. state of California, and gives its name to the San Francisco Bay Area. It is dominated by the big cities of San Francisco, San Jose, and Oakland. San Francisco Bay drains water from a ...

perimeter. The genus is native to South America, Mexico, and western North America, though some species have been introduced and naturalized in eastern North America and the Old World. ''Grindelia'' species are used as food plants by the

larva A larva (; plural larvae ) is a distinct juvenile form many animals undergo before metamorphosis into adults. Animals with indirect development such as insects, amphibians, or cnidarians typically have a larval phase of their life cycle. The ...

e of some

Lepidoptera Lepidoptera ( ) is an order (biology), order of insects that includes butterfly, butterflies and moths (both are called lepidopterans). About 180,000 species of the Lepidoptera are described, in 126 Family (biology), families and 46 Taxonomic r ...

species including '' Schinia mortua''.

Species

There are many species, including:The Plant List, search for ''Grindelia''
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References

External links

* {{Taxonbar, from=Q2702875 Asteraceae genera