verticillaster

American  

[vur-tuh-si-las-ter] / ˌvɜr tə sɪˈlæs tər /

noun

Botany.

1. an inflorescence in which the flowers are arranged in a seeming whorl, consisting in fact of a pair of opposite axillary, usually sessile, cymes, as in many mints.

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verticillaster British  

/ ˌvɜːtɪsɪˈlæsˌtreɪt, ˌvɜːtɪsɪˈlæstə, -trɪt /

noun

1. botany an inflorescence, such as that of the dead-nettle, that resembles a whorl but consists of two crowded cymes on either side of the stem

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Other Word Forms

• verticillastrate
  adjective

Etymology

Origin of verticillaster

1825–35; < Latin verticill ( us ) verticil + -aster ¹