Plant Wiki

The open plant encyclopedia

Know any plant.
Grow it well.

Snap a photo or search by any name to see how to care for it, where it comes from, whether it's safe, and a 3D model you can turn.

  • 13,000+plants with full pages
  • 365,000+plant species worldwide
  • 220+countries covered

Common in

See all

The plants people record most in your country, and ones that grow there wild.

What do you want to do?

Popular plants

Browse all plants

See them in 3D

All plants in 3D

Browse plants

Filter by what you want to do, shape, origin, country, care and safety.

Plant Wiki › Browse plants

Sea lettuce

Ulva

Also called Laver, Plants, Plant

Sea lettuce
Photo: Holger Krisp, CC BY 3.0

Ulva, known as sea lettuce, is a genus of edible green seaweeds found along coasts worldwide. It is a marine alga, not a land plant, so the usual houseplant and garden care points do not apply.

Water
Grows submerged in seawater; not watered like a land plant.
Edible
Yes, some parts

About

The sea lettuces comprise the genus Ulva, a group of edible green algae that are widely distributed along the coasts of the world's oceans. The type species within the genus Ulva is Ulva lactuca, lactuca being Latin for "lettuce". The genus also includes the species previously classified under the genus Enteromorpha, which are known under the common name green nori.

Uses

Sea lettuce is eaten by a number of different sea animals, including manatees and the sea slugs known as sea hares.

Other Ulva plants

Gutweed · Sea lettuce · Green String Lettuce · Ulva paschima

Text excerpted from the Wikipedia article Sea lettuce by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.

The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.

Credits & terms

Identify a plant

Point at a leaf or flower and snap. One plant in frame works best.

Your photo
Starting camera…