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Which one of the following is/are aquatic weeds?

Which one of the following is/are aquatic weeds? Correct Answer Both 1 and 3

The correct answer is Both 1 and 3.

  • Weeds is nothing but unwanted plants growing out of time and place.
  • The term weed was coined by Jethro Tull.
  • Among all aquatic weeds, the water hyacianth is the most troublesome aquatic weed.

 

Key Points

  •  Classification of Aquatic weeds:
  1. Floating weeds:
  • Water hyacianth (Echhornia crassipes)
  • Water fern (Salvinia molesta)
  • Water lettuce (Pistia spp)
  • Water velvet (Azola pinnata)

 

  1. Rooted weeds with floating leaves:
  • Lotus (Nelumbo nucifera)
  • White water lily (Nymphaea alba)

 

  1. Submerged weeds: Weed germinates, grow and reproduce beneath the water surface.
  • BGA (Anabaena spp)
  • Pond weed (Potamogeton spp)
  • Vallisnaria
  • Hydrilla spp

 

  1. Emergent weeds/semi-aquatic weeds: Grow in shallow water.
  • Typha spp
  • Ipomea spp
  • Pickerel weed (Pontederia cordata)

Related Questions

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