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Pakistan | Family List | Papilionaceae | Robinia

Robinia pseudo-acacia Linn., Sp.Pl. 722. 1753. Parker, l.c.

Deciduous tree, young branches glabrescent. Leaf c. 10-15 cm long, imparipinnately compound, leaflets 9-19, c. 2.0-5.5 cm long, elliptic to oval, entire, glabrescent above, puberulous at the nerves below; petiolule c. 2.5 mm long; stipels c. 1-1.5 mm long; stipules spinescent, up to 2 cm long. Inflorescence an axillary raceme, up to 20 cm long. Pedicel up to 3.8 cm long. Bract and bracteoles small, caducous. Calyx c. 5 mm long, puberulous; teeth shorter than the tube. Vexillum c. 1.5 cm long. Wing and keel subequal. Stamens 10, more or less monadelphous, anthers uniform. Ovary stipitate, style hairy and with a ring of hairs below the stigma. Fruit 10 cm or less long, c. 1.5-1.8 cm broad, glabrous.

Fl.Per.: March-April.

Native of United States, cultivated and more or less naturalized in Europe and Japan.

Cultivated as an ornamental tree in Punjab.


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