Here is a bit about green uniforms from my data base. I will warn you it is rather rough and I have not clean it up at all. Regardless some might find some information in it.
Use of Green Uniforms in the Civil War
Union
USA, 1st U.S. Sharpshooters, Berdan's; green frock with green trousers and possibly green sack coat
Pennsylvania 203rd Infantry green frock same as Berdan's SS
New York 41st Infantry, De Kalb Rgt, 2nd Yaeger Rgt green German style jacket
New York Rgt 63rd the commander in a green velvet frock
New York 5th Rgt rifle companies wore green frock coat
New York 9th Rgt until 1859 wore an emerald green tail coat.
New York 69th Rgt ca.1859 green coatee
New York Troy Citizen's Corps wore dark green coatees and trousers
New York Washington Rifles wore uniforms trimmed with green
New York ca.1854 wore green coatee
New York ca. 1855 green coatees and trousers
Maine Portland Rifle Corps green double-breasted coatees and dark green trousers
Michigan Detroit Yager Guard green coats
Indiana 35th wore a emerald-green kepi.
CSA
Virginia Alexandria Rifles, 6th Bn Virginia Volunteers green frock
Virginia Hunter Woodis, 54th Virginia Militia, 3rd Bn (6th Virginia Rgt) green frock
Virginia, Beauregard Rifles a.k..a.. Lynchburg Beauregards (Moorman's company Virginia Horse Artillery) grey shirt with green plastron
Virginia, Montgomery Guard, Co C, 1st Virginia Volunteers, green coatee.
Virginia, Emmitt Guards,17th Virginia Volunteer Infantry Rgt, Company G, green shell jacket.
Virginia, Kanawah Riflemen dark green frock and trousers
Virginia, Beauregard Rifles a.k.a. The Zouaves, Gray shirt with green plastron and trim
Georgia 5th Infantry Rgt, officers wore green frock
Georgia, Muscogee Rifles green frock and trousers
Georgia, Clinch rifles double breasted dark green frock and shell jackets and hat
Alabama, Emerald Guards, green frock
Alabama, Mobile Rifles dark green coatee and trousers
Alabama, Montgomery Rifles green kersey uniforms
Alabama, The 6th Alabama Infantry Regiment was commanded by a Mexican-American War vet to start named Colonel John J. Seibels. He made all of the officers of the regiment wear double-breasted green frock coats with Federal eagle buttons on them. General (then Captain) John B. Gordon said they wore these for the first 12 months of their enlistment.
Louisiana, Pelican Rifles, 1860,dark green coat and pants. Also said to wear later in 1860 green dress frock or hunter shirt
Louisiana, Jefferson Rifles blue frock with green trim.
Louisiana, Delta Rifles, wore green hunting shirts with fringe to include the sleeves
South Carolina Charlotte Light Dragoons, green coatee early in war.
South Carolina The Gist Riflemen (Williamston), Green frock and ttrousers or green hunter shirt
South Carolina, Rhett Guard (Newberry), 1st South Carolina green hunting frock
South Carolina Montgomery Guard dark green coatee
Kentucky Lexington Rifles of wore rifle-green frock coats, caps and trousers
Mississippi, Mississippi Rifles, dark green frock and trousers
Florida green uniforms
Texas, Tom Green Rifles gray with green trim.
Tennessee, Memphis Light Dragoons (Co A, 6th Tennessee Cav. Bn.) a green jacket
Tennessee, Tennessee Cadets (Memphis) wore a dark green coat.
Many rifle companies, both north and south, wore green facing color.ome NY volunteer cavalry wore green trim