Agriculture Reference
In-Depth Information
emergent (emersed)—most of the plant extends above the water sur-
face. Examples are cattails, bulrushes, arrowheads, and reeds ( Figure
3.15 shows the common cattail)
floating—all or part of the plant floats on the surface. Examples are
waterlilies, duckweeds, waterlettuce, and waterhyacinth
submergent (submersed)—all of the plant grows beneath the water
surface. Examples are watermilfoil, elodea, naiads, pond weeds
(Potamogeton), and coontails.
Figure 3.12 Bull thistle is also a biennial.
Emergent and floating plants, like some land plants, have a thick outer
layer on their leaves and stems which hinders herbicide absorption. Submer-
gent plants have a very thin outer layer on their leaves and stems and are very
susceptible to herbicide injury.
 
Search WWH ::




Custom Search