Liatris aestivalis

Liatris aestivalis
Scientific classification
Kingdom:	Plantae
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Asterids
Order:	Asterales
Family:	Asteraceae
Genus:	Liatris
Species:	L. aestivalis
Binomial name
	Liatris aestivalis; G.L.Nesom & O'Kennon

Liatris aestivalis, also known as the summer gayfeather, is a plant species in the aster family Asteraceae and genus Liatris. It is native to Oklahoma and Texas in the United States, where it is found in habitats that range from limestone outcrops to slopes and bases of slopes with shallow soils.

It grows from rounded corms that produce hairless stems 20 to 65 centimeters tall. Plants have dark-purple colored flowers in dense heads that are closely grouped together, forming a cylindrical-shaped spike-like collection surrounding the stems. The basal and cauline leaves have one nerve and are linear to linear-lanceolate in shape. It flowers in July and August, sometimes into September. The seed are produced in cypselae fruits that are 4.5 to 6 millimeters long with feathery bristle-like pappi.^[1]

References

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

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