Delta Arrowhead Sagittaria platyphylla
The Delta Arrowhead originates from North America and is best described as an emergent aquatic typically found in ponds, lakes and slow-moving streams. It is a perennial herb that grows up to 150cm in height, producing underground corns (similar to tubers). Some leaves are totally submerged while others rise just above the surface of the water. Submerged leaves have flattened petioles but no true blades. Emergent leaves have ovate to elliptical blades up to 17cm long. Inflorescence is a raceme with 3-9 whorls of flowers. Flowers are white and up to 2cm in diameter and occur all year round. The plant reproduces by means of stolons, as well as seeds. This plant belongs to the Alismataceae family.