Background and aims–The term'petal'is loosely applied to a variety of showy non-
homologous structures, generally situated in the second whorl of a differentiated perianth …

Polycnemum arvense has almost all embryological attributes of core Caryophyllales. It
shows in total equal affinity with Amaranthaceae and Chenopodiaceae, if the latter are …

For years, I only grew a handful of prickly pears because I found them too common (vulgar?)
and pedestrian looking. I was a snob. Furthermore, almost all Opuntia (L.) Mill. species have …