Leonotis nepetaefolia

Calixto JB, Yunes RA, Rae GA. Effect of crude extracts from Leonotis nepetaefolia (Labiatae) on rat and guinea-pig smooth muscle and rat cardiac muscle. J Pharm Pharmacol 1991 43 529-534. 

Purushothaman KK, Vasanth S, Connolly JD, Labbe C. 4,6,7-Trimethoxy-5-methylchromen-2-one, a new coumarin from Leonotis nepetaefolia. J Chem Soc 1976 23 2594-2595. 

Stillingia oil (Section 3.3.34) contains a Cg allenic acid. Ci8 allenic acids have been identified in seed oils of the Labiatae, especially in the subfamily Stachyoideae (Hagemann et al, 1967). Laballenic acid (18 2 5e6e) was first identified in Leonotis nepetaefolia ( - 15%) (Bagby etal, 1965) and lamenal-lenic acid (18 3 5c6 16 ) in Lamium purpureum ( 14%) (Mikolajezak fl/, 1967). 

Several allenic acids are known. One of these, laballenic acid (17), is from the seed oil of a mint, Leonotis nepetaefolia (Fig. 3.13). An unusual allene containing triacylglycerol is... 

Hedychenone (12) is a furanoid diterpenoid from the rhizomes of Hedychium spicatum (Zingiberaceae).22 A number of furanoid diterpenoids have been isolated from Leonotis species including nepetaefolinol (13) and two related diterpenoids, leonotinin (14) and the dilactone (15)23 from L. nepetaefolia. 

Leonitin (14) is a 9,13-epoxylabdane which was obtained " from Leonotis leonitis (Labiatae). It possesses a clear relationship to nepetaefolinol, which had previously been obtained from L. nepetaefolia. 

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