Purdue Arboretum botanical terminology reference and learning database.
Strobilus A cone. This feature helps explain how flowers are arranged, how pollination happens, or how seeds begin to form. Did you know? Pine cones are strobili; their scales protect seeds until conditions are right for release.
Sympetalous With petals united, at least near the base. This feature helps explain how flowers are arranged, how pollination happens, or how seeds begin to form.
Tepal A segment of the perianth in which the calyx (sepals) and corolla (petals) are virtually indistinguishable from one another. Did you know? Tulips have tepals because their petals and sepals look nearly identical.
Thyrse A compact, cylindrical or ovate panicle with an independent main axis and cymose subaxes
Umbel A flat topped or globe shaped flower cluster in which the individual flower stalks are of nearly equal length and arise from a common point Did you know? Carrot-family flowers form umbels, flat or rounded clusters that look like tiny umbrellas.
The Purdue Arboretum is a collaboration between the Department of Horticulture and Landscape Architecture and Administrative Operations