Euthamia leptocephala

Euthamia leptocephala, (commonly known as the narrowhead goldenstop, Mississippi Valley goldentop, or bushy goldentop)^[3] or is a North American species of plants in the family Asteraceae. It is native to the south-central United States, in the lower Mississippi Valley and the Coastal Plain of the Gulf of Mexico, from Texas to west-central Georgia and north as far as southern Illinois.

Euthamia leptocephala
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Asterids
Order:	Asterales
Family:	Asteraceae
Genus:	Euthamia
Species:	E. leptocephala
Binomial name
Euthamia leptocephala (Torr. & A.Gray) Greene ex Porter & Britton
Synonyms[1]
Aster leptocephalus (Torr. & A.Gray) Kuntze Solidago leptocephala Torr. & A.Gray Euthamia chrysothamnoides Greene [2]

Description

Euthamia leptocephala is a perennial herb or subshrub up to 100 cm (40 inches) tall. Leaves are alternate, simple, long and narrow, up to 8 cm (3.2 inches) long. One plant can produce many small, yellow flower heads flat-topped arrays. Each head has 7-14 ray florets surrounding 3-6 disc florets.^[4]

Galls

This species is host to the following insect induced galls:

• Asteromyia euthamiae Gagné, 1968 forms black spots on leaf blades
• Epiblema desertana (Zeller, 1875) causes stem swelling.

external link to gallformers