Northern Prairie Wildlife Research Center
Grass-leaved Goldenrod (Euthamia graminifolia)
- Family: Aster (Asteraceae)
- Flowering: July-October.
- Field Marks: This is one of the narrow-leaved
goldenrods with more or less flat-topped flower clusters. It
differs from other similar species by having three main veins in
- Habitat: Fallow fields, wet prairies.
- Habit: Perennial herb with long, slender rhizomes.
- Stems: Erect, branched, hairy, up to 5 feet tall.
- Leaves: Alternate, simple, linear to elliptic,
pointed at the tip, tapering to the base, without teeth, smooth
or rough on the upper surface, hairy on the lower surface, up to
4 inches long, up to 1/4 inch wide, with 3 main veins.
- Flowers: Several crowded into a head with many heads
forming a branched, more or less flat-topped inflorescence, each
head up to 1/4 inch across, subtended by several narrow, green,
somewhat sticky bracts, the outer flowers 15-25, yellow, ray-
like, the inner flowers yellow and tubular.
- Sepals: 0.
- Petals: The outer yellow, ray-like, about 1/8 inch
long, the inner yellow, tubular, 5-parted.
- Stamens: 5.
- Pistils: Ovary inferior, hairy.
- Fruits: Achenes 1/30 inch long, hairy, with a tuft of
very short bristles.
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