Hypericum hirsutum

Hypericum hirsutum (Hyper.) Rumex acetosa (Polyg.)... 

Rees, C. J. C. (1969) Chemoreceptor specificity associated with choice of feeding site by the beetle, Chrysolina brunsvicensis on its foodplant, Hypericum hirsutum. Ent. exp. appl., 12, 565-83. 

A compositional analysis of flavonoids from other species of Hypericum, namely H. hirsutum, H. maculatum, H. tatrapterum, H. montanum and H. humifusum [64], H. patulum and H. olympicum [68], has also been carried out. 

Hypericin 1 is present in plants, insects and protozoa. In plants, apart from H. perforatum, it occurs in a number of other species of Hypericum, namely H. hirsutum, H. maculatum, H. nummularium and H. triquetrifolium [17]. It is located in minute glands on different parts of the plants such as young stems, leaves and flowers. Interestingly, hypericin 1 is found in the integument of Australian Lac insects of the Coccoidea family, and appears with a number of structurally-related compounds [18, 19]. In protozoa, the blue-green ciliate, Stentor coerulus possesses a photoreceptor, stentorin, which consists of proteins bound to hypericin 1 [20]. 

BaUck Ml, Cox PA (1996) Plants, people, and culture the science of ethnobotany. W.H. Freeman/Sdentific American Library, New York Bandyukova VA, Khalmatov KhKh, ADmov Khl (1969) Flavonoids of Centaurea depressa. Chem Nat Compd 5(4) 274-275 Banthorpe DV, White JJ (1995) Novel anthraquinones from undifferentiated cell cultures of Galium verum. Phytochemistry 38(1) 107-111 Barakat HH, Hussein SAM, Marzouk MS, Merfort I, Linscheid M, Nawwar MAM (1997) PolyphenoUc metaboUtes of Epilobium hirsutum. Phytochemistry 46(5) 935-941 Barnes J, Anderson LA, PhiUipson DJ (2001) St John s wort Hypericum perforatum L.) a review of its chemistry, pharmacology and cUnical properties. J Pharm Pharmacol 53(5) 583-600... 

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