Hypericum L.
(St John’s worts)

Subtaxon				Example images	Rank	Featured subtaxa	No of images	No of ID refs
Hypericum androsaemum Tutsan					Species		17 images
Hypericum calycinum Rose-of-Sharon					Species		9 images
Hypericum elodes Marsh St John’s-wort					Species		2 images	1 ident. refs
Hypericum hirsutum Hairy St John’s-wort					Species		13 images
Hypericum humifusum Trailing St John’s-wort					Species		20 images
Hypericum linariifolium Toadflax-leaved St John’s-wort					Species			1 ident. refs
Hypericum perforatum Perforate St John’s-wort, Common St John’s-wort					Species		18 images
Hypericum perforatum x maculatum = H. x desetangsii Des Etangs’ St John’s-wort					Species hybrid	1 subtaxa	18 images
Hypericum pulchrum Slender St John’s-wort					Species		16 images
Hypericum tetrapterum Square-stalked St John’s-wort					Species		9 images

Taxonomic hierarchy:

Genus	Hypericum (St John’s worts)
Family	HYPERICACEAE (St John’s-worts)
Order	MALPIGHIALES (poplars, willows, St John’s worts, spurges and violets)
Subclass	EU-DICOTS (dicotyledonous flowering plants)
Class	MAGNOLIOPSIDA (flowering plants)
Phylum	TRACHEOPHYTA (vascular plants)
Kingdom	PLANTAE (plants)
Domain	Eukaryota (eukaryotes)
Life	BIOTA (living things)

Identification Works

	Author	Year	Title	Source
	Robson, N.K.B.		Hypericum	Yeo, P.F. Acaena, taxa with spherical heads, Plant Crib 2012

Hypericum (St John’s worts) may also be included in identification literature listed under the following higher taxa:

MAGNOLIOPSIDA
(flowering plants)

TRACHEOPHYTA
(vascular plants)

PLANTAE
(plants)

Eukaryota
(eukaryotes)

BIOTA
(living things)

NBN

NBN (data.nbn.org.uk) has a distribution map for Hypericum (St John’s worts)

BioInfo

BioInfo (www.bioinfo.org.uk) has 103 host/parasite/foodplant and/or other relationships for Hypericum (St John’s worts)

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