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Photographer: Emmet J. Judziewicz
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Family Asteraceae
Grindelia squarrosa (Pursh) Dunal
curly-cup gum-weed, gum-plant, gum-weed
Grindelia: named for David Hieronymous Grindel (1776-1836), a German pharmacologist, physician and professor of botany at Riga, Estonia
squarrosa: squarrose for "spreading horizontally; curved at the ends"
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| Status: | Introduced - naturalized |
| Plant: | erect, biennial/perennial, 4"-40" tall, smooth forb branched toward the top, base occasionally woody; taprooted |
| Flower: | head 1"- 1 1/2" wide, sticky, 25-40 yellow rays; 1/2"-3/4" wide, yellow disk; inflorescence with many heads in branched clusters; blooms Aug.-S |
| Fruit: | dry seed with no fluffy pappus |
| Leaf: | alternate, dotted with resinous glands, toothed |
| Habitat: | sun; dry; disturbed sites |
| (Glossary) |
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