Common Flower Gems - Classification # 6 Yellow Woodsorrel/Yellow Oxalis (Oxalis Stricta)

The yellow flower of this clover species has 3 heart-shaped leaves 

Wow I keep coming across a new species of flower I previously missed every new trip to the park. Common Yellow Woodsorrel is known by many other names including common yellow oxalis, sour grass, shamrock, sleeping beauty, sour trefoil, and sheep's clover. This woodsorrel is unique because tends to grow in a more upright fashion than other wood sorrels (stricta means "upright"). Other varieties include white, pink, blue, and purple

The vivid yellow flower has 5 petals. All its parts are perpendicular to the stem nearly horizontal to the ground 

Far out shot of the lemon grass bunch, which also happen to be edible.