Grindelia

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  G. squarrosa

  1a. Leaf blades toothed with mostly acute teeth, the apex of each tooth apiculate to 
setose (leaves rarely subentire); middle involcural bracts terminated by green appendages (1.2–) 2.5–5.4 mm long
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  G. hirsutula

  1b. Leaf blades toothed with obtuse to rounded teeth, the apex of each tooth with a prominent resin gland (leaves rarely subentire); middle involucral bracts terminated by green appendages 1–1.7 (–3) mm long

 Show photos of:   Each photo represents one species in this genus.