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Photographs of different plant parts of P. bleo and P. grandifolia. (a) Flower of P. bleo, (b) lower of P. grandifolia [47], (c) stem and spines of P. bleo, (d) stem and spines of P. grandifolia [48], (e) ripe fruits and seeds of P. bleo, and (f) ripe fruits and seeds of P. grandifolia [49].
