curly-cup gumweed

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Grindelia squarrosa var. squarrosa


Taxonomy

Family:

Asteraceae (aster)

 

Subfamily:

Asteroideae

 

Supertribe:

Asterodae

 

Tribe:

Astereae (aster)

 

No Rank:

North American clade

Parent

curly-cup gumweed (Grindelia squarrosa)


Nativity

Native to the Great Plains states, including North Dakota and South Dakota. Introduced and naturalized in Minnesota.

Status

 

Habitat

Dry. Disturbed areas. Full sun.

Flowering

Late July to September

Flower Color

Yellow

Height

4 to 40


Identification

The upper and middle leaves are egg-shaped or oblong and are 2 to 4 times as long as wide. They are closely and evenly toothed. They are dotted with resinous glands.

 
Similar
Species

Curly-cup gumweed (Grindelia squarrosa var. quasiperennis) has leaves that are untoothed, are remotely sharply small-toothed, or have lower leaves that are irregularly lobed, or pinnatifid.

Curly-cup gumweed (Grindelia squarrosa var. serrulata) has narrower upper and middle leaves. They are linear oblong to oblong inversely-lanceshaped, and are 5 to 8 times as long as wide.


Range Range Map   Sources: 3.
 
Sightings

Bonanza Prairie SNA

 

Comments

 


Images  
               

Synonyms

 

 
Common
Names

curly-cup gumweed

curlycup gumweed

curlytop gumweed

gum-plant

gumweed

rosinweed

tarweed


 

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