Shoulder Shrug Muscles. The shoulder shrug is a simple exercise to perform, and as the name suggests, it does work your shoulder muscles -- namely, the trapezius, or upper shoulder. Additionally, the shoulder shrug works muscles of your back -- the levator scapulae and erector spinae.
Oxalis makes a perennial ground cover in shady areas. Oxalis (Oxalis spp.), also called sorrel or shamrock, has a negative image if all you know of them are weedy, invasive cosmopolitan species. However, most of the about 800 species of oxalis are native plants in tropical South America and Africa or in temperate areas of the Old and New World. Many are used for landscaping or as houseplants. Oxalis are perennial plants but can give the appearance of annuals by going dormant in winter or during droughts.
REGISTER EARLY! The total field of Shamrock Run Portland is limited to 35,000. Shamrock has sold out for the last six years will very likely do so again for 2016. Adult entry fees increase by $5 (by $10 for the Shamrock Half) on January 15. ENTRY FEES on or after January 15: FOR THE 5K RUN, 8K RUN AND SHAMROCK STRIDE (5K WALK): Adults (Individual entry) -- $44 per person â age 13 or older. Teams (15 or more entries) -- $40 per person â SAVE $4. Children (ages 4 through 12) -- $15 per child. Children age 3 and younger are FREE, but do not receive a T-shirt.