Colutea arborescens L.

Bladder Senna

Shrub to about 4 m tall. Leaves to about 15 cm long. Leaflets in 5-7 pairs, elliptic to ovate, hairy. Flowers 3-8, each to 2 cm long, yellow, the standard lined with red; summer. Fruit inflated, reddish green, balloon-like, to about 7 cm long. C. × media Willd. (C. arborescens × C. orientalis) is occasionally grown; it has leaflets in 3-6 pairs and flowers that are orange to reddish brown

S Europe.

Source: Spencer, R. (2002). Fabaceae. In: Spencer, R.. Horticultural Flora of South-eastern Australia. Volume 3. Flowering plants. Dicotyledons. Part 2. The identification of garden and cultivated plants. University of New South Wales Press.

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kingdom Plantae
phylum   Tracheophyta
class    Magnoliopsida
superorder     Rosanae
order      Fabales
family       Fabaceae
genus        Colutea L.