Grindelia chiloensis is a perennial shrub in the Asteraceae adapted to arid conditions and valued for its material yields. It is native to parts of Argentina and central-southern Chile. Flowering occurs from July to September in the UK flowering window. Commercial and experimental plantings focus on resin and biomass production rather than purely ornamental use.

Shrubby gumweed (Grindelia chiloensis) is a perennial shrub native to Argentina and Chile that flowers July to September and is grown for resin and.

https://en.wikipedia.org/wiki/Grindelia_chiloensis

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.

Grindelia chiloensis

Shrubby gumweed | Grindelia chiloensis

Grindelia speciosa is a species in the genus Grindelia (family Asteraceae) notable for its composite flowerheads made up of many disc florets and variable ray florets. Flowering occurs from July to September. Members of the genus range in habit from herbaceous plants to subshrubs and can be annual, biennial or perennial. The foliage of Grindelia species is recorded as a food source for the larvae of some moths, including Schinia mortua.

Grindelia speciosa flowers from July to September with composite heads made of numerous disc florets and variable yellow or orange ray florets.