Dendromecon harfordii

Dendromecon harfordii, known by the common names Channel Islands tree poppy and Harford's tree poppy, is a species of flowering plant in the poppy family.

Dendromecon harfordii
Scientific classification edit
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Ranunculales
Family: Papaveraceae
Genus: Dendromecon
D. harfordii
Binomial name
Dendromecon harfordii

Dendromecon rigida subsp. harfordii

It was formerly treated as subspecies of the related species Dendromecon rigida, and had the botanical name Dendromecon rigida subsp. harfordii.


The plant is endemic to San Clemente Island, Santa Catalina Island, Santa Cruz Island, and Santa Rosa Island in the Channel Islands of California.

It is found in California coastal sage and chaparral habitats on the islands.


Dendromecon harfordii is a shrub or small tree reaching heights between 2–6 metres (6.6–19.7 ft). It has thin branching stems covered sparsely in smooth-edged, oval-shaped leaves 3 to 8 centimeters long.

It bears showy flowers with four bright yellow petals each 2 or 3 centimeters long.

The fruit is a curved, cylindrical capsule over 7 centimeters in length.

Foliage and flower.


Dendromecon harfordii is cultivated as an ornamental plant, for planting in native plant, drought tolerant, and wildlife gardens, and in natural landscaping projects.

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