Standing out above the water

• Protruding, as from water
• Rising above the surface
• Rising out of water
• Rising above a water surface
• Standing out of the water
• Rising from water

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Emersed \E*mersed"\, a. [L. emersus, p. p. See Emerge .] (Bot.) Standing out of, or rising above, water. --Gray.

Douglas Harper's Etymology Dictionary Word definitions in Douglas Harper's Etymology Dictionary
1680s, formed as if a past-participle adjective, from Latin emersus , past participle of emergere "rise out or up" (see emerge ).

Wiktionary Word definitions in Wiktionary
a. (context botany of an aquatic plant English) That rises above the surface