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Herrickia horrida
Also called Horrid Herrickia
Eurybia horrida is a species of flowering plant in the family Asteraceae known by the common names spiny aster and horrid herrickia. It is native to Colorado and New Mexico in the United States, where it occurs only in the Canadian River basin. It most often included in genus Eurybia.
Eurybia horrida is a clumpy perennial herb or subshrub growing 30 to 60 centimeters tall from a woody rhizome. There are one to many stems which are coated in resin glands. The leaves are oval or oblong in shape with bases that clasp the stem. They are up to 4.5 centimeters in length. They are tough, glandular, coated in rough hairs, and lined with spiny teeth on the edges. The inflorescence may be a single flower head or an array of several heads. Each head is lined with glandular green or purplish phyllaries.
Eurybia horrida has a very limited range in the upper basin of the Canadian River mainly in New Mexico, but also into parts of southern Colorado. It is recorded by the PLANTS database and by the New Mexico Rare Plant Technical Council as growing in just Las Animas County, Colorado and four northern counties of New Mexico, Colfax, Mora, Harding, and San Miguel.
Alexander's rock aster · Mountain aster · Slender aster · Western showy aster · White wood aster · Thistleleaf aster · Forked aster · Southern prairie aster · Thickstem aster · Jones' aster · King's Serpentweed · Bigleaf aster
Text excerpted from the Wikipedia article Eurybia horrida by its contributors, under CC BY-SA 4.0; the excerpts are shared under the same licence.
