butterfly pea blue pea blue vine pigeon wings mussel shell creeper

axillary beaked blossom blue branches brown butterfly butterfly-pea clitoria compound conchflower corolla creeper elliptic-oblong eye fascicles field flattened flower flowers fruits good-looking grass green herb impariprnnate katarodu katarolu leaf leaflets leaves meadow mussel nature nil obtuse papilionaceous parts pea perennial petal pigeon plant propagation purple roots sharply shell sinhala solitary stems straight sub-coriaceous terete tulip twining used vernacular vine wel white wildflower wings yellow yellowish කටරොඩු කටරොළු නිල් වැල්