Watercress in Morwell National Park, Victoria, Australia, where it is common weed in the creeks in the park.
Grows rapidly in waterfall of gargen pond. It is growing from between the lava rocks .... no soil just cuttings I purchased for salad at supermarket.
Watercress growing at Markham Springs in Missouri.
Watercress in Morwell National Park in Victoria, Australia, November 1990
Bog Watercress Nasturtium
Rorippa Watercress Aquatic Bog Plants