- Plants
- ›Vascular Plants
- ›flowering plants
- ›Dicots
- ›Sunflowers, Bellflowers, Fanflowers, and Allies
- ›Sunflowers, Daisies, Asters, and Allies
- ›Asteroideae
- ›asters and allies
- ›Machaerantherinae

gumplants
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 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, a plant with bright yellow flowers indigenous to much of the United States, is commonly called curlycup gumweed. Grindelia robusta, 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 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.
60 branches of this genus, most-observed first

Curlycup Gumweed
speciesGrindelia squarrosa

Oregon Gumplant
speciesGrindelia stricta
Spanish Gold
speciesGrindelia ciliata

Great Valley gumweed
speciesGrindelia camporum

Puget sound gumweed
speciesGrindelia integrifolia

Hairy Gumweed
speciesGrindelia hirsutula

Narrowleaf Gumweed
speciesGrindelia lanceolata
curlytop gumweed
speciesGrindelia nuda
subalpine gumweed
speciesGrindelia subalpina

Lonestar gumweed
speciesGrindelia adenodonta

Grindelia pulchella
speciesGrindelia pulchella

Shrubby Gumweed
speciesGrindelia chiloensis

San Diego Gumplant
speciesGrindelia hallii

Grindelia inuloides
speciesGrindelia inuloides

Idaho Gumweed
speciesGrindelia nana

Grindelia tarapacana
speciesGrindelia tarapacana

Grindelia scorzonerifolia
speciesGrindelia scorzonerifolia

Grindelia orientalis
speciesGrindelia orientalis

Colorado Gumweed
speciesGrindelia inornata

Grindelia buphthalmoides
speciesGrindelia buphthalmoides

Ash Meadows Gumplant
speciesGrindelia fraxinipratensis

Grindelia arizonica
speciesGrindelia arizonica

Grindelia oxylepis
speciesGrindelia oxylepis

Rough Gumweed
speciesGrindelia scabra

Grindelia howellii
speciesGrindelia howellii

Grindelia boliviana
speciesGrindelia boliviana

Grindelia anethifolia
speciesGrindelia anethifolia

Grindelia cabrerae
speciesGrindelia cabrerae

Grindelia × paludosa
hybridGrindelia × paludosa

Grindelia glutinosa
speciesGrindelia glutinosa

Grindelia aegialitis
speciesGrindelia aegialitis

Grindelia brachystephana
speciesGrindelia brachystephana

Grindelia ragonesei
speciesGrindelia ragonesei
Grindelia greenmanii
speciesGrindelia greenmanii

Willamette Valley hybrid gumplant
hybridGrindelia integrifolia × nana

Grindelia ventanensis
speciesGrindelia ventanensis

Pointed Gumweed
speciesGrindelia fastigiata

Grindelia tricuspis
speciesGrindelia tricuspis

Grindelia patagonica
speciesGrindelia patagonica

Grindelia puberula
speciesGrindelia puberula

Grindelia subdecurrens
speciesGrindelia subdecurrens

Grindelia atlantica
speciesGrindelia atlantica

Grindelia covasii
speciesGrindelia covasii

Grindelia grandiflora
speciesGrindelia grandiflora

Grindelia chacoensis
speciesGrindelia chacoensis

Havard's gumweed
speciesGrindelia havardii

Grindelia sublanuginosa
speciesGrindelia sublanuginosa

Grindelia eligulata
speciesGrindelia eligulata
Grindelia palmeri
speciesGrindelia palmeri

Grindelia globularifolia
speciesGrindelia globularifolia

Plains Gumweed
speciesGrindelia oolepis
Little-head Gumweed
speciesGrindelia microcephala

Grindelia greenei
speciesGrindelia greenei
Grindelia hirtella
speciesGrindelia hirtella
Grindelia pusilla
speciesGrindelia pusilla

Grindelia tenella
speciesGrindelia tenella

Reclined Gumweed
speciesGrindelia decumbens

Grindelia peregrinensis
speciesGrindelia peregrinensis

Grindelia mutabilis
speciesGrindelia mutabilis
Grindelia macvaughii
speciesGrindelia macvaughii
Where it lives
Recorded sightings
—
geo-referenced records in GBIF, from museums, herbaria and field observers.
Drag the globe to turn it. Dots are where records exist, not a range map; darker means more records.
In the stacks
Searching the stacks…
Every page naming Grindelia in the Biodiversity Heritage Library →
This page is assembled live from iNaturalist, GBIF, Wikipedia, the Source Library and the Internet Archive. It is not yet part of the hand-edited codex. iNaturalist taxon 55365.