Tacos and more, 5-7 p.m., American Legion Post 21, 16701 E. 40 Highway, Independence. $6. 816-373-0221.
New and historic varieties of iris grown by local members, 10 a.m.-4 p.m., Trailside Center, 9901 Holmes Road, Kansas City.
Proceeds to benefit seed money to help launch the Brain Tumor Trials Collaborative, 8 a.m., Corporate Woods Building 40, Overland Park. $25-$35.
Music by Harvest Moon will rock the morning; registration begins at 8 a.m., walking at 9:30 a.m., Theis Park, 4800 Rockhill Road.
Riders will stop at SAGs and receive a playing card; at the end of the ride, prizes will be awarded for the best poker hand, 8 a.m., Lee’s Summit Subaru, 2101 N.E. Independence Ave. registration deadline Aug. 23. $25. 816-969-1500 or lsparks.net.