The (deciduous) herbs are of various kinds and possess different qualities. They should be classed as fierce, mild, and powerful.
ज्ञेयास्तूग्राश्च सौम्याश्च तेजस्विन्यश्च ताः पृथक्। ओषध्यो बहुवीर्या हि बहुरूपास्तथैव च।॥