Liatris aspera

Liatris aspera
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Asterids
Order:	Asterales
Family:	Asteraceae
Genus:	Liatris
Species:	L. aspera
Binomial name
	Liatris aspera; Michx.

Liatris aspera (known as rough,[1][2] button,[3] lacerate,[4] or tall prairie blazing star[2] or gayfeather) is a wildflower that is found in the mid to eastern United States in habitats that range from mesic to dry prairie and dry savanna.

It is a perennial herb[5] that grows 30 to 180 cm (1 to 6 feet) high.[6] The inflorescence is an erect raceme with numerous, purple, button-like flower heads, short-stalked or stalkless, blooming from the top down. It flowers from mid-August through September, with seed becoming ripe in October to November.[7] It can be purchased from specialty suppliers.

Leaves are alternate, numerous, and narrow along the entire stem. The stem is rough with short stiff hairs,[1] and often the leaves are as well.[2] It attracts birds, hummingbirds, and butterflies.[5]

Flowers from above, some not yet blooming.
Monarch butterfly on Liatris aspera, North Dakota, USA.

References

Hilty, John (2016). "Rough Blazingstar (Liatris aspera)". Illinois Wildflowers.
Chayka, Katy; Dziuk, Peter (2016). "Liatris aspera (Rough Blazing Star)". Minnesota Wildflowers.
Haddock, Mike (2018). "Tall gayfeather". Kansas Wildflowers and Grasses.
"Liatris aspera". Flora of Wisconsin. Wisconsin State Herbarium, University of Wisconsin–Madison.
"Liatris aspera - Plant Finder". www.missouribotanicalgarden.org. Retrieved 2022-01-18.
Nesom, Guy L. (2006). "Liatris aspera". In Flora of North America Editorial Committee (ed.). Flora of North America North of Mexico (FNA). Vol. 21. New York and Oxford – via eFloras.org, Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
"Liatris Aspera: Rough Blazing Star". Native Plants of the Great Lakes. United States Environmental Protection Agency. Archived from the original on 2014-04-17.

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[Illinois-1] Hilty, John (2016). "Rough Blazingstar (Liatris aspera)". Illinois Wildflowers.

[Minnesota-2] Chayka, Katy; Dziuk, Peter (2016). "Liatris aspera (Rough Blazing Star)". Minnesota Wildflowers.

[3] Haddock, Mike (2018). "Tall gayfeather". Kansas Wildflowers and Grasses.

[4] "Liatris aspera". Flora of Wisconsin. Wisconsin State Herbarium, University of Wisconsin–Madison.

[:0-5] "Liatris aspera - Plant Finder". www.missouribotanicalgarden.org. Retrieved 2022-01-18.

[FNA-6] Nesom, Guy L. (2006). "Liatris aspera". In Flora of North America Editorial Committee (ed.). Flora of North America North of Mexico (FNA). Vol. 21. New York and Oxford – via eFloras.org, Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.

[7] "Liatris Aspera: Rough Blazing Star". Native Plants of the Great Lakes. United States Environmental Protection Agency. Archived from the original on 2014-04-17.