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Yellow Horned Poppy Glaucium flavum 

 
 
Attracts BeesBees are attracted to this plant
Attracts FliesFlies are attracted to this plant
Perennial Life CyclePerennial life cycle
Cup-Shaped FlowersCup-shaped flowers
Yellow FlowersYellow flowers
4 Petals4 petals
Jun-Sep Flowering
period
Lobed LeavesLobed leaves
Crinkly-Edged LeavesCrinkly-edged leaves
Round StemRound stem
Tap RootTap root
90cmMaximum height
 
 
  Main image of Yellow Horned Poppy

© 2020-2025 Adrian Briggs

 

Yellow Horned Poppy is a native perennial plant of the UK, typically found growing in shingle beaches and rocky coastal areas, to a mature height of up to 90cm.

Yellow Horned Poppy is named after the colour of its flowers and the horn-like appearance of its long curved seed pods. It is a bluish-green clump-forming plant, growing from a rosette of hairy, crinkly, lobed leaves. The plant becomes less hairy as it matures.

Botanic classification and naming: Yellow Horned Poppy is a member of the Poppy (Papaveraceae) family. The genus name 'Glaucium' identifies the plant as a Horned Poppy and its species name 'flavum' means 'yellow'.

Concerns: All parts of the Yellow Horned Poppy including the seeds are highly toxic, affecting the nervous and respiratory systems. It can cause brain damage and death.

 
Flower of Yellow Horned Poppy

© 2021 Adrian Briggs

 

Flowers:
Yellow Horned Poppy usually flowers between June and September.

Flower colour:

Flower Colour Yellow

Yellow

Flower shape:

Flower Shape  Cup

Cup

Petals:

Petal Number =  4

4

Leaf of Yellow Horned Poppy

© 2021 Adrian Briggs

 

Leaves:

Leaf Shape:

Leaf Shape is Lobed

Lobed

Or:

Alternative Leaf Shape is Rosette

Rosette

Leaf Margins:

Leaf Margin is crinkly-edged

crinkly-edged

Stem of Yellow Horned Poppy

© 2021 Adrian Briggs

 

Stem and Roots:

Stem shape:

Stem Shape is Round

Round

Root type:

Root Type is Tap

Tap