. 2009 Feb 11;14(2):682–725. doi: 10.3390/molecules14020682

Table 1.

Localization and indicative amounts of most significant constituents of H. perforatum phytocomplex.

Substance	Approximate amount (mg/g dry weight)
Naphtodianthrones
Hypericin	0.1-7^a
	0.1-7^a
Pseudohypericin	0.1-12^a
	0.1-12^a
Localization	^aDark glands in leaf and petal margin; stamens
Acylphloroglucinols
Hyperforin	0.3-150^b


Localization	^bTranslucent glands in leaves, carpellar leaves and sepals
Flavonoids
Hyperoside	1-25^c
	1-25^c
Rutin	0-35^c
	0-35^c
Localization	^cFloral dehiscent leaves: sepals, stamens, petals. Likely accumulation in vacuoles.
Biflavones
Amentoflavone	0-1.8^d
	0-1.8^d
Biapigenin	0.3-10.2^d
	0.3-10.2^d
Localization	^dFloral deiscent leaves: sepals, stamens, petals. Likely accumulation in vacuoles.

^a,b,c,d: same letters indicate sites of maximum accumulation; amounts referred to reproductive parts.