Fig. 1

Onagraceae. subfamily Ludwigioideae. A Ludwigia octovalvis. Flower and immature capsule. Baldwin Co., Alabama (image Warren Wagner in 2003). Subfamily Onagroideae B-L. B Tribe Hauyeae. Hauya elegans subsp. lucida. Branch with flower at anthesis and in bud. Cultivated at San Diego Zoo (image Wikipedia in 2008). C, D Tribe Circaeeae. C. Fuchsia inflata. Inflorescence. Cusco, Peru (image P. Berry in 1978). D Circaea pacifica. Inflorescence and young fruit. Benton Co Oregon (image G. Carr-4162b in 2006). E, F Tribe Lopezieae. E Lopezia racemosa subsp racemosa. Flower with inflorescence and leaves. Puebla, Mexcio (image Jon Amith in 2007). F Megacorax gracielanus. Chasmogamous flower with bud and stem with leaves. Sierra de Coneto, Durango, Mexico (image M. Socorro Gonzalez-Elizondo in 2021). G Tribe Gongylocarpeae. Gongylocarpus fruticulosus. Stem with flowers and gall-like mature fruit embedded in pith of stem, indehiscent, and inset showing flower closeup. Isla Magdalena, Baja California Sur, Mexico (images Jon Rebman in 2016). Tribe Epilobieae H-J H. Chamaenerion angustifolium subsp. circumvagum. Stem with inflorescence with open flowers and maturing capsules. MN (image Peter M. Dziuk, Minnesota Wildflowers in 2002). I Epilobium nankotaizanense. Habit with flower. Taiwan (image Ching-I Peng in 2008). J Epilobium canum subsp latifolium. Stem with flowers and some dispersed seeds. Curry Co., OR (image Gerry Carr 6317b in 2015). Tribe Onagreae. K, L K. Xylonagra arborea. Stem with flowers and very young fruit. Cultivated at Missouri Botanical Garden, originally from Baja California, Mexico (image Ching-I Peng in 1982). L. Taraxia ovata. Habit with flowers. Monterey, CA (image Christian Schwarz)