Ludwigia glandulosa from North America is a very beautiful water plant.
It is slow growing and requires CO2 addition to grow well. Stems becomes 15-40 cm tall and 5-12 cm wide. The leaves turn greener if sufficient light is not provided.
Used to be sold as Ludwigia perennis.
Tissue culture plants are grown in-vitro (literally: in the glass) in a nutrient-rich synthetic growing medium, either liquid or gel, without the presence of any other lifeforms. This guarantees a pest and disease-free specimen, while also providing accuracy throughout the trade.
Tissue culture plants should be removed from the cup as soon as possible. All plants grow on some sort of synthetic growing medium, ranging anywhere from liquid to jelly to firm gel. This should be removed and rinsed off. Gently massage the roots between your fingers until the gel dissolves away. Most plants can be broken up into smaller pieces and spread out in your aquarium. Smaller pieces are easier to plant.