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Table 1 Comparison of Helwingiacaea and related species under Cronquist system (1981)

From: Biological pattern and transcriptomic exploration and phylogenetic analysis in the odd floral architecture tree: Helwingia willd

Class Order Family Genus Species Characteristics
Flower unisexual Calyx Petal Stamen Ovary Locules
Rosidae Cornales Cornaceae Helwingia Helwingia japonica Yes 3-5 3-5 3-5 Inferior 3-5
Rosidae Cornales Cornaceae Helwingia Helwingia chinensis Yes 3-5 3-5 3-5 Inferior 3-5
Rosidae Cornales Cornaceae Helwingia H. chinensis Batal.var.crenata Yes 3-5 3-5 3-5 Inferior 3-5
Rosidae Cornales Cornaceae Cornus Cornus officinalis No 4 4 4 Inferior 2
Rosidae Cornales Cornaceae Swida Swida alba No 4 4 4 Inferior 2
Rosidae Cornales Cornaceae Swida Swida wilsoniana No 4 4 4 Inferior -
Rosidae Cornales Cornaceae Aucuba Aucuba chinensis Yes 4 4 4 - 2
Rosidae Cornales Garryaceae Dendrobenthamia Dendrobenthamia japonica var. chinensis No - - - Inferior -
Rosidae Cornales Alangiaceae Alangium Alangium salviifolium No 4-10 4-10 20-30 Inferior 1
Rosidae Cornales Davidiaceae Davidia Davidia involucrata Yes & No - 2-3 1-7 Inferior 6-10
Rosidae Celastrales Aquifoliaceae Ilex Ilex chinensis Yes 4-5 4-5 4 Superior 4
Rosidae Apliales Araliaceae Aralia Aralia chinensis L. No 5 5 5 - 5
Rosidae Apliales Araliaceae Panax Panax ginseng No 5 5 5 - 2
Rosidae Rosales Grossulariaceae Ribesa Ribes nigrum No 5 5 5 Inferior -
Rosidae Rosales Grossulariaceae Ribesa Ribes davidii Yes 5 5 5 - 2
Asteridae Plantaginales Plantaginaceae Antirrhium Antirrhium majus L. No - 1 4 - -
Asteridae Asterales Asteraceae Gerbera Gerbera jamesonii Yes & No - - 5 Inferior 1
Asteridae Asterales Asteraceae Helianthus Helianthus_annuum Yes & No 2 Combined 5 Inferior 1
Asteridae Solanales Solanaceae Solanum Solanum tuberosum No 5 5 5 Superior -
Asteridae Solanales Solanaceae Solanum Solanum lycopersicum No 5-7 5-7 5-7 Superior 2 to several
Dilleniidae Ericales Theaceae Camellia Camellia sinensis No 5 5-6 Several Superior 3
Dilleniidae Ericales Ericaceae Rhododendron Rhododendron ponticum No 5 5 10 Superior 10