Koelreuteria consists of slender, deciduous trees characterized by their pinnately divided foliage. They produce clusters of yellow flowers, which are succeeded by distinctive, bladder-like fruits.

Koelreuteria

Koelreuteria bipinnata is a deciduous tree that can reach heights of up to 8 meters, characterized by its broad canopy and large, 2-pinnate leaves featuring pairs of finely serrated, oval leaflets. In late summer, it produces clusters of yellow flowers, which are marked with red spots and can grow up to 30 centimeters in length, forming pyramidal shapes. Following the flowering period, the tree develops distinctive fruit capsules that are inflated and exhibit hues of pink or red. This species thrives in warm summer climates, making it an excellent choice for specimen planting.

Koelreuteria bipinnata

Koelreuteria bipinnata var. integrifoliola

Koelreuteria elegans

Koelreuteria elegans subsp. formosana is an evergreen tree that can reach heights of up to 10 meters, characterized by a broad, spreading canopy and textured, furrowed bark. Its leaves are large and compound, featuring pairs of oval leaflets with finely serrated edges. In late summer, it produces golden yellow flowers arranged in pyramidal clusters that can grow up to 30 centimeters long. Following the flowering period, the tree generates distinctive, inflated fruit capsules that exhibit a hint of pink. This species is not suitable for cultivation in the British Isles due to its hardiness limitations.

Koelreuteria elegans subsp. formosana

Koelreuteria formosana

Koelreuteria henryi

Koelreuteria integrifoliola

Koelreuteria orientalis

Koelreuteria paniculata is a small deciduous tree that typically reaches a height of up to 10 meters. Its pinnate leaves emerge with a pinkish hue in spring, transitioning to yellow as autumn approaches. During mid to late summer, the tree produces small yellow flowers arranged in large panicles. These blooms are succeeded by distinctive, bladder-like, bronze-pink fruits that add visual interest.

Koelreuteria paniculata

Koelreuteria paniculata 'Beachmaster'

In spring, this cultivar showcases vibrant red stems, accompanied by leaves that initially emerge in a pinkish-red hue. As the season progresses, the foliage transitions to shades of orange and eventually matures to a pale, yellow-green.

Koelreuteria paniculata 'Coral Sun'PBR

Koelreuteria paniculata 'Fastigiata' is a columnar tree that reaches heights of up to 7 meters. It features bright green, lobed leaves that transition to yellow as autumn approaches. The tree produces large, branching clusters of small yellow flowers, which are succeeded by distinctive green and pink inflated seed pods. However, this cultivar is known for its infrequent flowering.

Koelreuteria paniculata 'Fastigiata'

Koelreuteria paniculata 'Hélène d'Andlau'

Koelreuteria paniculata 'Rose Lantern' is a compact, rounded deciduous tree that typically reaches heights of about 10 meters. Its pinnate leaves begin as a reddish hue in spring, transition to green throughout the summer, and display a vibrant yellow in fall. In late summer, the tree produces airy clusters of golden-yellow blossoms, which are succeeded by distinctive rose-pink, bladder-shaped fruits in the autumn months.