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

Asteraceae Asteraceae () is a large family (biology), family of flowering plants that consists of over 32,000 known species in over 1,900 genera within the Order (biology), order Asterales. The number of species in Asteraceae is rivaled only by the Orchi ...

. The genus was named for

Latvia Latvia, officially the Republic of Latvia, is a country in the Baltic region of Northern Europe. It is one of the three Baltic states, along with Estonia to the north and Lithuania to the south. It borders Russia to the east and Belarus to t ...

n botanist David Hieronymus Grindel, 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 gr ...

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

Grindelia robusta ''Grindelia hirsutula'' is a North American species of flowering plant in the family Asteraceae known by the common names hairy gumplant and hairy gumweed. Distribution ''Grindelia hirsutula'' is native to North America, widespread across Canada ...

'', found in the western states, is a coastal scrub bush that is reputed to have several medicinal uses. Hairy gumweed, ''

Grindelia cuneifolia ''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, biennia ...

'', occurs in brackish coastal marshes of western North America, such as in some portions of the

San Francisco Bay San Francisco Bay (Chochenyo language, Chochenyo: 'ommu) is a large tidal estuary in the United States, U.S. state of California, and gives its name to the San Francisco Bay Area. It is dominated by the cities of San Francisco, California, San ...

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 (; : larvae ) is a distinct juvenile form many animals undergo before metamorphosis into their next life stage. Animals with indirect development such as insects, some arachnids, amphibians, or cnidarians typically have a larval phase ...

e of some

Lepidoptera Lepidoptera ( ) or lepidopterans is an order (biology), order of winged insects which includes butterflies and moths. About 180,000 species of the Lepidoptera have been described, representing 10% of the total described species of living organ ...

species including '' Schinia mortua''.

Species

There are many species, including:Flann, C (ed) 2009+ Global Compositae Checklist
/ref>The Plant List, search for ''Grindelia''
/ref>

References

External links

* {{Authority control Asteraceae genera