Carlina acaulis, a perennial dicotyledonous flowering plant species
Other important works by Hegelmaier include a monograph of the genus Callitriche, called Monographie der Gattung Callitriche (1864), and a highly regarded study involving plant embryology, titled Vergleichenden Untersuchungen über Entwicklung dikotyledoner Keime (Comparative studies on development of dicotyledonous seeds, 1878).
Stylidium debile, the frail triggerplant, a carnivorous dicotyledonous plant endemic to coastal areas in Queensland and New South Wales, Australia