frond apex of the wild fern shoots.

exotic bostoniensis bush environment evergreen exaltata fishbone fern flora foliage green growth ladder leaves lush nature nephrolepis pattern plant polypodiaceae stem summer sword tropical field meadow wild shade pasture bushy vegetation creeping weed ivy habitat garden aspleniaceae beech marsh thelypteris palustris phegopteris connectilis curl bend greenery frond apex tip midrib axis shoot