AGrass Leaved Goldenrod

AGrass Leaved Goldenrod

Grass Leaved Goldenrod

Grass-Leaved Goldenrod, Euthamia graminifolia, can grow as a slender plant, to have a bushy, branching appearance. Grass-Leaved Goldenrod is named after its defining characteristic of having narrow leaves along its stem. It also has a rounded flat top cluster of 20 to 35 small, shiny yellow flowers that make it unique. This plant can be easy to grow in the right area, but has a tendency to get aggressive in moist sunny places. It also does sometimes have trouble competing against Canada Goldenrod and some other forbs.


The smaller flowers of this plant attract many insects like butterflies, moths, long tongued bees, short tongued bees, beetles, etc; Chauliognathus pennsylvanicus (Goldenrod Soldier Beetle) and Epicauta pensylvanica (Black Blister Beetle) are the most attracted to this plants flowers! Swamp Sparrows and Eastern Goldfinches have been known to feed on the seeds of this plant as well. This herbaceous perennial plant is 2-3�' tall. Sometimes it is slender and little branched, while at other times it branches frequently, creating a bushy appearance. The slender stems usually have lines of fine white hairs. The alternate leaves are linear and have smooth margins. The larger leaves have 3 conspicuous veins, although the smaller ones usually have only a single conspicuous vein. They are up to 4" long and 3/8" across, or slightly wider. Sometimes there are a few white hairs near the base of the leaves and along the central vein on the underside. There are clusters of small composite flowers at the apex of the plant and many of the upper side stems. These flower clusters are usually rather flat-headed, but they sometimes assume a round-headed appearance. Each composite flower is yellow, consisting of about 21-35 disk florets and ray florets (when considered together). It is only about 1/8" across – smaller than the composite flowers of other goldenrods.

The preference is full sun and moist conditions. However, this plant tolerates drier conditions, and can be surprisingly drought tolerant. The soil should contain high amounts of organic matter; some varieties of this plant also grow in moist sandy soil. Powdery mildew seems to bother this goldenrod less often than many others. It is easy to grow, but can spread aggressively in moist sunny places.Grass-Leaved Goldenrod occurs occasionally in most counties of Illinois (see Distribution Map), where this plant is native. However, it can be locally common in some wetlands areas. Habitats include moist black soil prairies, edges of marshes, sandy pannes between dunes, calcareous seeps, borders of lakes, abandoned fields, and ditches along railroads. Grass-Leaved Goldenrod occasionally occurs in drier habitats, but it has greater trouble competing with other forbs, such as Solidago canadensis (Canada Goldenrod), in such places. (Source: www.illinoiswildflowers.info)


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