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Rocky Mountain zinnia

Also known as: Plains zinnia

Zinnia grandiflora Nutt.

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Rocky Mountain zinnia
Rocky Mountain zinnia
Rocky Mountain zinnia
Rocky Mountain zinnia leaves
Rocky Mountain zinnia
Rocky Mountain zinnia leaves
Rocky Mountain zinnia
Rocky Mountain zinnia
Rocky Mountain zinnia
Rocky Mountain zinnia inflorescence

Morphology

Stem
Several arising from woody base, slender, much-branched, slightly woody, greenish, appressed-hairy.
Leaves
Opposite, simple, sessile, linear, .4 to 1.2 inches long, to 1/8 inch wide, 1-3 nerved, appressed-hairy.
Inflorescence
Heads, numerous, to 1.5 inch across, terminal on upper stems, barely elevated above leaves.
Flower
Involucral bracts oblong, overlapping; surfaces rough, glabrous or appressed-hairy; tips blunt, often reddish; ray florets 3-6, fertile, egg-shaped to circular, to 3/4 inch long, yellow; disk florets 18-24, fertile, corollas orange to red or greenish, 5-toothed.
Fruit
Achenes, 3-angled, oblanceolate-linear, 1/6 to 1/5 inch long, awns 1-4, unequal or awns absent, enclosing small seed.

Ecology

Habitat
High plains; open dry areas; limestone soils.
Distribution
Southwest 1/4 of Kansas.

Practical Information

Uses
Native Americans steeped the plant and took the tea to treat kidney ailments, stomachaches and heartburn. They also used the liquid as an eyewash and as a wash for excessive sweating. The flowers were used to make a yellow wool dye and were ground into a paste to make red body paint.

Additional Notes

Comments

Named for Johann Gottfried Zinn, 1727-1759, German professor of medicine who did botanical work in Mexico. There is a story that he was accosted by bandits while collecting seeds in Mexico and they let him go because they thought he was crazy. Zinnia grandiflora is related to Zinnia elegans which is cultivated as an ornamental.

Quick Facts
Plant Type
Wildflower
Family
Asteraceae - Sunflower Family
Life Span
Perennial
Height
4-8 inches
Last Updated
2007-12-04
Color Groups
Yellow Wildflowers
Flowering Period
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Blooms: May, June, July, August, September