over 250, see text 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 - adderstongues Seed plants (spermatophytes) †Pteridospermatophyta - seed ferns Pinophyta - conifers Cycadophyta - cycads Ginkgophyta - ginkgo Gnetophyta - gnetae Magnoliophyta - flowering plants... 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 Achatocarpaceae Aizoaceae (Fig-marigold family) Amaranthaceae (amaranth family) Ancistrocladaceae Asteropeiaceae Barbeuiaceae Basellaceae (basella family) Cactaceae (cactus family) Caryophyllaceae (carnation family) Dioncophyllaceae Droseraceae (sundew family) Drosophyllaceae Frankeniaceae Molluginaceae (carpetweed family) Nepenthaceae Nyctaginaceae (four-oclock family) Physenaceae Phytolaccaceae (pokeweed family) Plumbaginaceae (plumbago family) Polygonaceae (buckwheat family) Portulacaceae (purslane family) Rhabdodendraceae... Genera See text The Polygonaceae, or the Knotweed Family, are a group of dicots including buckwheat, sorrel (but not wood sorrel), rhubarb, and knotgrass. ... In biology, a species is a kind of organism. ...
The Wild Buckwheats form the genusEriogonum in the flowering plant family Polygonaceae. They are found in North America. This is a highly species-rich genus, and indications are that active speciation is continuing. It includes some common wildflowers such as the California Buckwheat or the Mount Diablo buckwheat (Eriogonum truncatum) whichs was belived to be extincted and was rediscovered in 24 May 2005. See genus (mathematics) for the use of the term in mathematics. ... 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. ... Genera See text The Polygonaceae, or the Knotweed Family, are a group of dicots including buckwheat, sorrel (but not wood sorrel), rhubarb, and knotgrass. ... World map showing location of North America A satellite composite image of North America North America is the third largest continent in area and in population after Eurasia and Africa. ... Categories: Stub | Flowers ...
External link
Jepson Manual genus treatment (http://ucjeps.berkeley.edu/cgi-bin/get_JM_treatment.pl?5936,5994)
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