Hypericum japonicum Thunb.

English: Matted St. John's-wort

Mandarin: 地耳草 (di er cao)

Kingdom: Plantae (2715)

  Phylum: Tracheophyta (2630)

    Class: Magnoliopsida (2217)

      Order: Malpighiales (120)

        Family: Hypericaceae (9)(family description)

          Genus: Hypericum (9)

            Epithet: japonicum Thunb. (4)

Synonyms: Ascyrum humifusum Labill., Brathys caespitosa Blume, Brathys cespitosa Blume, Brathys debilis Blume, Brathys humifusa (Labill.) Spach, Brathys japonica (Thunb.) Wight, Brathys laxa Blume, Brathys nepalensis Blume, Brathys orysetum Blume, Brathys oryzetum Blume, Brathys radicans Blume, Hypericum ascyron Siebold, Hypericum calycatum Jacquem., Hypericum calyculatum Jacquem., Hypericum cavaleriei H.Lév., Hypericum chinense Osbeck, Hypericum dichotomum Buch.-Ham., Hypericum dominii H.Lév., Hypericum japonicum Miq., Hypericum jeongjocksanense S.J.Park & K.J.Kim, Hypericum laxum (Blume) Koidz., Hypericum mutilum Maxim., Hypericum nervatum Hance, Hypericum pseudojaponicum Nakai, Hypericum pusillum Choisy, Hypericum scaturiginum Buch.-Ham., Hypericum sumatranum Miq., Hypericum taquetii H.Lév. & Vaniot, Hypericum thunbergii Franch. & Sav., Reseda chinensis Lour., Reseda cochinchinensis Lour., Sarothra gentianoides Lour., Sarothra japonica (Thunb.) Y.Kimura, Sarothra laxa (Blume) Y.Kimura, Sarothra loureiroana Schult., Tridia frankenioides Korth.

caespitosa => growing in dense tufts

chinense => of Chinese origin

chinensis => of Chinese origin

cochinchinensis => from Cochinchina (old name for various southern regions of Vietnam)

debilis => weak, frail, small

dichotomum => with forked boughs

humifusum => creeping on the surface of the ground

japonica => from Japan

japonicum => from Japan

laxum => loose, slack, relaxed

nepalensis => from or of Nepal

Climate: tropical

Habit: herb

Flower colour: yellow

Check for Hypericum japonicum at

World Flora Online, GBIF or IPNI

• [1684] Hypericum japonicum - Pacific Island Ecosystems at Risk (PIER)
• [1833] Hypericum japonicum - Flora of China @ efloras.org
• [1847] Hypericum japonicum - Plants For A Future