viridiplant streptophyte http://purl.bioontology.org/ontology/MESH/D057949 http://purl.obolibrary.org/obo/NCBITaxon_35493 https://en.wikipedia.org/wiki/Streptophyta https://species.wikimedia.org/wiki/Streptophyta https://www.wikidata.org/wiki/Q133527 A clade of plants. The composition of the clade varies considerably between authors, but the definition employed here includes land plants and all green algae except the Chlorophyta and possibly the more basal Mesostigmatophyceae, Chlorokybophyceae, and Spirotaenia. Streptophyta streptophytes