Indigofera

Indigofera is mainly indigenous in tropical and subtropical regions of Africa and Asia, and comprises about 700 species of shrubs and sub-shrubs, some of which are fully hardy and are cultivated as ornamental shrubs. This is a deciduous shrub with unevenly pinnate leaves with round to oval leaflets, and fairly narrow spikes of lilac, pink or white, pea-like flowers, which grow in the leaf axilla. I. beterantha (syn. I. gerardiana) is 1-1.5 m tall and has branching, arching shoots, unevenly pinnate, hairy leaves, consisting of 13-21 oval to oblong leaflets, 1-1.5 cm long, and short-stemmed, upright spikes, 7-15 cm long, of violet-pink flowers with small bracts; in severe frost protect the base of the plant. I. kirilowii is a broad, compact shrub, 50-100 cm tall, with arching shoots, unevenly pinnate, hairy leaves consisting of 7-11 oval to round, pointed leaflets, 1-3 cm long, and compact, stemmed spikes up to 12 cm long of pink or reddish-purple flowers, 2 cm across.

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