Whorl (botany)
ARRANGEMENT OF LEAVES, SEPALS, STAMENS ETC. THAT RADIATE FROM A POINT AND SURROUND THE STEM OR STALK
Verticil; Whorls (botany)
In botany, a whorl or verticil is an arrangement of leaves, sepals, petals, stamens, or carpels that radiate from a single point and surround or wrap around the stem or stalk.Lindley, John.