1	"Perennial shrubs; sepals petaloid; fruit succulent, pendulous, indehiscent"	"Fuchsia {Fuchsia magellanica}"
1	"Annual or perennial herbs; sepals green, not petaloid; fruit dry, upright, dehiscent"	2
2	"Sepals persistent (creeping, mud- or water-plants)"	Ludwigia
2	"Sepals caducous after anthesis"	3
3	"Fruit indehiscent and few-seeded"	Oenothera
3	"Fruit dehiscent and usually many-seeded"	4
4	"Expanded flower generally less than 2.5 cm across, hypanthium to c. 2 mm long, not or hardly prolonged above ovary; seeds often with an apical hair-tuft"	Epilobium
4	"Expanded flower usually more than 2.5 cm across, hypanthium at least 4 mm long, prolonged above ovary; seeds lacking hair-tufts"	Oenothera