Summary ⁷

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 a flowering plant with yellow ray flowers.

Botanical Information ⁸

The scientific name for Curlycup Gumweed is Grindelia squarrosa. The Curlycup Gumweed is a yellow flower that is about an inch wide. It grows to around 12 inches tall. The sessile leaves are slightly serrated which helps the plant stand up and tilt itself toward the sun. It is an aromatic medicinal plant that may or may not have ray flowers.

Ecological Information ⁹

Ethnobotanical Information ¹⁰

It is medicinal.

References ¹¹

usda.gov
sutrostewards.org
pfaf.org
wildflower.org
plants.usda.gov

About the Author ¹¹

Student author(s)*: Sheily and Jovana (age 13) from South Valley Academy

*The entries in this field guide have been edited by Yerba Mansa Project staff to ensure that they contain quality, fact-checked content and standardized formatting.

Sources and Credits

1. (c) Matt Lavin, some rights reserved (CC BY-SA), http://www.flickr.com/photos/35478170@N08/3478033983
2. (c) Anthony Mendoza, some rights reserved (CC BY-NC-SA), https://www.flickr.com/photos/39039456@N07/9667002833/
3. (c) Radu Chibzii, some rights reserved (CC BY-SA), https://www.flickr.com/photos/radu_chibzii/49801352732/
4. (c) nature80020, some rights reserved (CC BY), https://www.flickr.com/photos/nature80020/15065771322/
5. (c) Matt Lavin, some rights reserved (CC BY-SA), https://www.flickr.com/photos/plant_diversity/4031012018/
6. (c) Andrey Zharkikh, some rights reserved (CC BY), https://www.flickr.com/photos/zharkikh/7967737960/
7. Adapted by caseynm from a work by (c) Wikipedia, some rights reserved (CC BY-SA), http://en.wikipedia.org/wiki/Grindelia_squarrosa
8. Adapted by smiller33 from a work by (c) kristen_himm, some rights reserved (CC BY-SA)
9. Adapted by caseynm from a work by (c) kristen_himm, some rights reserved (CC BY-SA)
10. (c) smiller33, some rights reserved (CC BY-SA)
11. (c) caseynm, some rights reserved (CC BY-SA)

More Info

• iNat taxon page
• Biodiversity Heritage Library
• BOLD Systems BIN search
• Calflora
• CalPhotos
• eFloras.org
• Flora of North America (beta)
• Global Biodiversity Information Facility (GBIF)
• HOSTS - a Database of the World's Lepidopteran Hostplants
• IPNI (with links to POWO, WFO, and BHL)
• Jepson eFlora
• Maryland Biodiversity Project
• NatureServe Explorer 2.0
• OregonFlora.org
• SEINet Symbiota portals
• Tropicos
• USDA PLANTS database
• VASCAN by Canadensys
• World Flora Online

Range Map

(c) NatureServe, some rights reserved (CC-BY-NC)

iNat Map