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markweed

markweed

9.9
A climbing plant with three-part leaves and white berries that can cause an itchy rash
  • noun
  • US
translation icon : hiedra venenosa
  • Many hikers avoid markweed because contact with its leaves can lead to an itchy rash.

Examples

  • The white berries of markweed are easily spotted along forest edges in late summer.

  • Some markweeds have beautiful greenish flowers.

  • He learned to identify markweed on sight after suffering a skin reaction during his first camping trip.

  • The markweed can be found in many gardens.

  • He learned to identify markweed after suffering a skin reaction on his first camping trip.

  • Many hikers avoid markweed because contact with its leaves can cause a painful rash.

  • The white berries of markweed are a clear indicator of its presence in the wild.

Synonyms

poison ivy
vsmarkweed
  • US
9 4.2

A climbing plant with three leaflets and white berries that causes an itchy rash when touched

refers to oil causing skin irritation but not always naming a rash
poison mercury
vsmarkweed
  • US
9.9

A climbing plant with three joined leaves and white berries that makes a skin rash when you touch it

lists the same features but without noting clustered berry groups
Rhus radicans
vsmarkweed
  • Specialized
9.9

A climbing plant with three-part leaves and white berries that makes an oil causing skin rashes when touched

also mentions greenish flowers adding a flower detail to the description
Toxicodendron radicans
vsmarkweed
  • Specialized
9.9

A climbing or spreading North American plant with three-part leaves that makes an oil causing a skin rash when touched

includes white berries and flower color not stressing spreading habit

Surface Forms

markweed singular
markweeds plural

Morphology

markweed = mark + weed (semi-transparent) = mark + weed

The element 'weed' clearly signals a plant, but the contribution of 'mark' to the specific identity of the plant is not predictable for learners.

Etymology

Markweed probably comes from the simple parts mark and weed, where mark means 'a spot or sign' and weed means 'a wild plant'. A helpful way to remember it is to think of the plant's white berries and the itchy skin 'marks' its oil can leave, so markweed is a wild plant that makes noticeable marks.