Broad leaf chain sword also know as Echinodorus Quadricostatus, can be used in both the foreground and midgrounds of your aquarium. Chain sword spreads by runners and can make a nice carpet. 

Common Name: Broad Leafed Chain Sword
Family Name: Alismataceae
Native To: North, Central, and South America
Lighting: Medium - High
pH: 5.5 - 8
Growth Demands: Moderate
Growth Form: Rosette
Growth Rate: Fast
True Aquatic: Yes
Placement In Tank: Fore - Midground
Available As: Bare Root, Potted