| It is a congenital abnormality which covers a spectrum ranging from a simple bifid renal pelvis to a complete ureteropelvic duplication. |
| The trifid third and bifid fourth lobes are incompletely separated by a lower and smaller fourth lateral saddle. |
| The ventral lobe is divided into two deep bifid prongs by a high median saddle. |
| Examples include bifid vs. multifid styles, stellate vs. lepidote trichomes, and leaves with or without basal glands. |
| The rostrum in homolids is usually bifid, while that of P. gorrelli is characterized by two lateral rostral spines and a downturned, central rostral spine. |
| The fourth glume is narrow, ciliate, nerveless or rarely 1-nerved, erose or bifid at the top. |
