250+ St. John's Wort Seeds Hypericum Perforatum

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St. John's Wort is a fragrant and hardy perennial herb that grows 1' to 3' tall. This herb has pale green leaves with black splotches. St. John's Wort blooms yellow flowers with a lemon scent during summer and early autumn. St. John's Wort is believed to be a medicinal herb that has antidepressant activities.

The plant contains the following:

• Flavonoids (e.g. epigallocatechin, rutin, hyperoside, isoquercetin, quercitrin, quercetin, amentoflavone, biapigenin, astilbin, myricetin, miquelianin, kaempferol, luteolin)
• Phenolic acids (e.g. chlorogenic acid, caffeic acid, p-coumaric acid, ferulic acid, p-hydroxybenzoic acid, vanillic acid)
• Naphthodianthrones (e.g. hypericin, pseudohypericin, protohypericin, protopseudohypericin)
• Phloroglucinols (e.g. hyperforin, adhyperforin)
• Tannins (unspecified, proanthocyanidins reported)
• Volatile oils (e.g. 2-methyloctane, nonane, 2-methyldecane, undecane, α-pinene, β-pinene, α-terpineol, geraniol, myrcene, limonene, caryophyllene, humulene) Saturated fatty acids (e.g. isovaleric acid (3-methylbutanoic acid), myristic acid, palmitic acid, stearic acid)
• Alkanols (e.g. 1-tetracosanol, 1-hexacosanol)
• Vitamins & their analogues (e.g. carotenoids, choline, nicotinamide, nicotinic acid)
• Miscellaneous others (e.g. pectin, β-sitosterol, hexadecane, triacontane, kielcorin, norathyriol)

The naphthodianthrones hypericin and pseudohypericin along with the phloroglucinol derivative hyperforin are thought to be among the numerous active constituents. It also contains essential oils composed mainly of sesquiterpenes.

Note: Not available in California

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Photo1 Credit: Bob Peterson from North Palm Beach, Florida, Planet Earth! [CC BY-SA 2.0], via Wikimedia Commons

Photo2 Credit: John Tann from Sydney, Australia [CC BY 2.0], via Wikimedia Commons