Which has more species, Ecballium or Brownea?
Ecballium Ecballium is a genus of flowering plants in the family Cucurbitaceae containing a single species, Ecballium elaterium, also called the squirting cucumber or exploding cucumber (but not to be confused with "Cyclanthera explodens"). It gets its unusual name from the fact that, when ripe, it squirts a stream of mucilaginous liquid containing its seeds, which can be seen with the naked eye. It is thus considered to have rapid plant movement.
Erythroxylum Erythroxylum ("Erythroxylon") is a genus of tropical flowering plants in the family Erythroxylaceae. Many of the approximately 200 species contain the drug cocaine; "Erythroxylum coca", a native of South America, is the main commercial source of cocaine and of the mild stimulant coca tea. Another species, "Erythroxylum vacciniifolium" (also known as Catuaba) is used as an aphrodisiac in Brazilian drinks and herbal medicine.