Wax plant (Hoya carnosa) of the family Apocynaceae, a member of the Milkweed family. It is a native of North America and is grown as a minor foliage crop but is mainly grown as a garden plant or house plant. Scientific classification or biological classification is how biologists group and categorize extinct and living species of organisms. ... Divisions Green algae land plants (embryophytes) non-vascular embryophytes Hepatophyta - liverworts Anthocerophyta - hornworts Bryophyta - mosses vascular plants (tracheophytes) seedless vascular plants Lycopodiophyta - clubmosses Equisetophyta - horsetails Pteridophyta - true ferns Psilotophyta - whisk ferns Ophioglossophyta - adderstongue ferns seed plants (spermatophytes) †Pteridospermatophyta - seed ferns Pinophyta - conifers Cycadophyta - cycads Ginkgophyta - ginkgo Gnetophyta - gnetae Magnoliophyta - flowering... Classes Magnoliopsida - Dicots Liliopsida - Monocots The flowering plants (also angiosperms or Magnoliophyta) are one of the major groups of modern plants, comprising those that produce seeds in specialized reproductive organs called flowers, where the ovulary or carpel is enclosed. ... Orders see text Dicotyledons or dicots are flowering plants whose seed contains two embryonic leaves or cotyledons. ... Families Gentianaceae (gentian family) Apocynaceae (dogbane family) Gelsemiaceae Loganiaceae (logania family) Rubiaceae (coffee family) The Gentianales are an order of flowering plants, included within the asterid group of dicotyledons. ... Genera See text The Family Apocynaceae or dogbane family of flowering plants includes trees, shrubs, herbs, or lianas. ... Hoya is a genus of tropical plants in the family Asclepiadaceae. ... In biology, binomial nomenclature is the formal method of naming species. ... Genera See text The Family Apocynaceae or dogbane family of flowering plants includes trees, shrubs, herbs, or lianas. ... Botany Asclepias, the milkweeds, is a genus of herbaceous perennial, dicotyledonous plants in the family Asclepiadaceae that contains over 140 known species. ...