|Scientific Name||Grindelia squarrosa var. nuda||USDA PLANTS Symbol||GRSQN|
|Common Name||Curlycup Gumweed||ITIS Taxonomic Serial No.||535925|
|Family||Asteraceae (Sunflower)||Flora of North America Ref.||Click Here|
|Description||Habitat: Calcareous and sandy soils, clays; disturbed sites, plains, hills, roadsides, along streams.
Plant: Erect annual 16 to 40 inches tall.
Leaves: Alternate, somewhat clasping, oblong to oblanceolate, 1 to 2-3/4 inches long; light-green to green, toothed edges and gland-dotted surfaces.
Inflorescence: Composite gummy-sticky flower heads, very prominent recurved phyllaries below, many disk florets and no rays.
Bloom Period: July to October.
References: SEINet, Missouriplants.com, and "Manual of the Vascular Plants of Texas" by Correll and Johnston.
Note: The more common relative G. squarrosa var. squarrosa is widely distributed in the rest of the US and has 25 to 40 yellow rays.
|BONAP Distribution Map
Map Color Key
Banner photo of Lupinus ssp. by Rick Capozza, Austin TX
© Tom Lebsack 2023