Trapaceae consists solely of the genus Trapa. Scientific classification or biological classification is how biologists group and categorize extinct and living species of organisms. ... Divisions Land plants (embryophytes) Non-vascular plants (bryophytes) Marchantiophyta - liverworts Anthocerotophyta - hornworts Bryophyta - mosses Vascular plants (tracheophytes) Lycopodiophyta - clubmosses Equisetophyta - horsetails Pteridophyta - true ferns Psilotophyta - whisk ferns Ophioglossophyta - adderstongues Seed plants (spermatophytes) †Pteridospermatophyta - seed ferns Pinophyta - conifers Cycadophyta - cycads Ginkgophyta - ginkgo Gnetophyta - gnetae Magnoliophyta - flowering plants Adiantum pedatum (a fern... Classes Magnoliopsida- Dicots Liliopsida- Monocots The flowering plants (also called angiosperms) are a major group of land plants. ... Orders see text Dicotyledons or dicots are flowering plants whose seed contains two embryonic leaves or cotyledons. ... Families See text The Myrtales are an order of flowering plants placed within the rosid group of dicotyledons. ... Barthélemy Charles Joseph Dumortier (1797 - 1878) was a Belgian politician and botanist. ... Species Trapa bicornis Trapa natans Trapa is the genus of the water caltrop, , and the horn nut, . Categories: | ... Species Trapa bicornis Trapa natans Trapa is the genus of the water caltrop, , and the horn nut, . Categories: | ...

It is sometimes treated as a subgroup of the Onagraceae. Genera Boisduvallia Calylophus Camissonia Chamerion Circaea Clarkia Epilobium Eucharidium Fuchsia Gaura Gayophytum Gongylocarpus Hauya Hemifuchsia Heterogaura Isnardia Jussiaea Lopezia Ludwigia Oenothera Stenosiphon Xylonagra Zauschneria The Onagraceae or Willowherb family (or Evening Primose family) is a family of flowering plants. ...