Sideoats Grama Plant Information
Sideoats Grama grows in the following 44 states:Arizona, Colorado, Connecticut, District Of Columbia, Georgia, Idaho, Illinois, Indiana, Kansas, Kentucky, Maryland, Minnesota, Mississippi, Montana, Nebraska, New Mexico, North Carolina, Oklahoma, Pennsylvania, South Carolina, South Dakota, Utah, Wisconsin, Wyoming, Oregon, West Virginia, Alabama, Arkansas, California, Florida, Hawaii, Iowa, Louisiana, Maine, Michigan, Missouri, New Jersey, New York, North Dakota, Ohio, Tennessee, Texas, Virginia, Washington
Bouteloua curtipendula, commonly known as sideoats grama, is a perennial, short prairie grass that is native throughout the temperate and tropical Western Hemisphere, from Canada south to Argentina.
Sideoats grama is a warm-season grass. The culms (flowering stems) are 30-100cm (12-39.5in) tall, and have alternate leaves that are concentrated at the bottom of the culm. The leaves are light green to blue-green in color, and up to 6mm (14in) across.
The flowers bloom in summer and autumn. They are grouped in spikes or racemes that are positioned alternately along the top 15 to 25cm (6 to 10in) of the culm. There are 10-50 spikes per culm. Each spike contains 3-6 spikelets, or rarely as many as 10. Each spikelet is 4.5 to 10mm (316 to 38in) long and consists of two glumes and two florets. One of the florets is fertile, and has colorful orange to brownish red anthers and feathery white stigmas during the blooming period, which contrasts with the pale green, pale red, greenish-red, or purple color of the spikes themselves.
After it is pollinated, the spike becomes straw-colored. The fertile florets become seeds, and when they are ripe, the whole spike falls to the ground.
Sideoats grama grows well on mountainous plateaus, rocky slopes, and sandy plains. It is drought- and cold-tolerant and is hardy in USDA hardiness zones 4-9 (average annual minimums of -30 to 25F, -34 to -4C).
It provides larval food for the veined ctenucha (Ctenucha venosa).
It is currently listed as a threatened species in the U.S. state of Michigan.
Sideoats grama is considered a good foraging grass for livestock. It is planted for erosion control.
It is cultivated as an ornamental plant for native plant and drought-tolerant gardens.
Sideoats grama is the state grass of Texas.
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