Solidago caesia

Solidago caesia
Scientific classification
Kingdom:	Plantae
Clade:	Embryophytes
Clade:	Tracheophytes
Clade:	Spermatophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Asterids
Order:	Asterales
Family:	Asteraceae
Genus:	Solidago
Species:	S. caesia
Binomial name
Solidago caesia L.
Synonyms1
Aster caesius (L.) Kuntze Solidago axillaris herb.banks ex Pursh Solidago caesia f. caesia Solidago caesia var. axillaris (Pursh) A.Gray Solidago caesia var. caesia L. Solidago caesia var. paniculata A.Gray Solidago gracilis hort.par. ex Poir. Solidago lateriflora Raf. ex DC.

Solidago caesia, commonly named blue-stemmed goldenrod, wreath goldenrod,² or woodland goldenrod,³ is a flowering plant native to North America.

Key identification features include a dark, wiry, blue or purple stem, and flower heads in the leaf axils instead of in a large array at the top of the plant.³ Prefers medium to part shade, and can often be found in wooded areas.⁴

It grows in the central and eastern parts of the continent from Manitoba east to New Brunswick, south as far as Florida and eastern Texas.⁵⁶

This species is host to the following insect induced galls:

• Asphondylia silva
• Asteromyia carbonifera (Osten Sacken, 1862)
• Gnorimoschema gallaeasterella (Kellicott, 1878)

external link to gallformers