The Manual on Uniform Traffic Control Devices (MUTCD) is approved by the Federal Highway Administrator. as the National Standard in accordance with Title 23 U.S. Code, Sections 109(d), 114(a), 217, 315, and 402(a), 23 CFR 655, and 49 CFR 1.48(b)(8), 1.48(b)(33), and 1.48(c)(2).
The dominant vegetation types are grassy prairie and grass steppe in which numerous species of the grass genus Stipa are particularly conspicuous. Pampas grass (Cortaderia selloana) is an iconic species of the Pampas. Vegetation typically includes perennial grasses and herbs.
Pampas Grass: Cortaderia selloana âPumilaâ is a dwarf Pampas Grass. Pampas is an annual warm season grass, this dwarf variety growing to about 3 feet. âPumilaâ is more cold hardy than tender pampas grass and may be semi perennial once established up to zone 5, hardy to zone 6. Pampas is commonly grown for itâs showy fluffy white flower heads.