This genus markedly differs from " Echinodorus " by a typical paniculate inflorescence shaped as a regular pyramid.
2.
A "'regular pyramid "'has a regular polygon base and is usually implied to be a " right pyramid ".
3.
A right regular pyramid is one which has a regular polygon as its base and whose apex is " above " the center of the base, so that the apex, the center of the base and any other vertex form a right triangle.
मोबाइल