Grindelia squarrosa (Pursh) Dunal, Mém. Mus. Hist. Nat. 5 50 1819. (Syn: Aurelia amplexicaulis Cass.; Aurelia squarrosa Cass. ex Steud.; Donia squarrosa Pursh; Grindelia aphanactis Rydb.; Grindelia arguta A.Gray; Grindelia nuda Alph.Wood .; Grindelia pinnatifida Wooton & Standl.; Grindelia serrulata Rydb.; Grindelia squarrosa f. angustior Steyerm. ….);
Asteraceae Fortnight Part 1-Radiate Heads: Gindelia squarrosa from California-GS72 : Attachments (2). 1 post by 1 author. Gindelia squarrosa photographed from Half moon bay area in California.
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