Which among the following alga is submerged and does not bear flowers?

Chara is a genus of green algae that belongs to the division Charophyta. It is commonly found in freshwater environments and is known for its rigid, branched stems and whorls of small, scale-like leaves. Chara is a submerged aquatic plant and does not bear flowers. Instead, it reproduces sexually through the production of biflagellate gametes.