The Clark Fork Chapter of the Montana Native Plant Society a couple of field trips coming up in the Bitterroot Valley and Missoula.

On Saturday, the group will hike up Trapper Peak, led by botanist Wayne Philips. The trail climbs 3,800 feet over four miles to the 10,157-foot summit. Missoula residents can meet at the southwest corner of the Wal-Mart at 4000 U.S. Highway 93 at 7 a.m. to carpool to the trailhead, while Bitterroot residents can meet at Sam’s Spade, 111 S. Fourth St., in Hamilton at 8 a.m. For more information, call Kelly at 258-5439 or Wayne at 453-0648.

At 6:30 p.m. Monday, botanist will lead a hike and examine the phenology of Mount Sentinel. Krebs will point out which flowers and leaves appear first. Participants can meet at the picnic table east of the U.S. Forest Service research lab near the corner of Beckwith and Madeline avenues on the south side of the University of Montana.