Arlington County added 18 trees to its list of “notable trees” this week, bringing its countywide total to 283 notable trees.

Thirteen of the trees are in North Arlington and five are in South Arlington. Most of them are on private property and owned by the residents, who are granted either a certificate or a plaque. The trees, according to the county’s Department of Parks and Recreation, “may be nominated for their size, age, species, historical interest or because they have a special significance to the neighborhood.”

“It is an honor to be a part of a culture that values and recognizes its tree canopy,” Arlington County Board Chair Jay Fisette said in a press release. “All of the nominees and winners should take great pride in their efforts and dedication to a flourishing environment.”

The notable trees designations coincide with Arbor Day. The county will hold an Arbor Day ceremony today (Thursday) at 2:00 p.m. at Barcroft Elementary School, 625 S. Wakefield Street, where it will receive its 18th consecutive “Tree City USA” designation from the National Arbor Day Foundation.

Below are the list of trees, and their locations, that are now known as Arlington notable trees. Photos of each winner can be found at DPR’s website:

2014 Certificate Winners:

• Two Tulip Trees, 5249 26th Street N.
• Two Red Maples, 5923 3rd Street N.
• Willow Oak, 1700 S. Pollard Street
• Pin Oak, 4919 33rd Road N.
• Tulip Tree, 2320 N. Tuckahoe Street
• Black Cherry, 3557 N. Abingdon Street
• Eastern Red Cedar, 4814 3rd Street N.

2014 Plaque Winners:

• Ohio Buckeye, 4863 28th Street N.
• Loblolly Pine, 5331 32nd Street N.
• Eastern Redcedar, 1718 S. Quincy Street
• Black Oak, 1718 S. Quincy Street
• Southern Red Oak, 1718 S. Quincy Street
• White Oak, 400 N. Manchester Street (pictured)
• White Oak, 315 N. Garfield Street
• White Oak, 4508 8th Street S.
• Deodar Cedar, 2223 N. Quantico Street

Photo via Arlington Dept. of Parks and Recreation