Psiadia altissima (DC.) Drake - Asteraceae - Iary, Dingadingana

Shrub, native to [[http://legacy.tropicos.org/Name/2725926?projectid=17|Madagascar]].

"The leaves of this plant are known in folk medicine for their haemostatic, antidiarrheic, carminative and disinfectant properties." \\
Major components of the essential oil of the leaves (steam distillation; 0.4-0.7%) were β-pinene (39.7%), (E)-β-ocimene (~7%), terpinen-4-ol (4.8%), humulene (4.8%), limonene (~3.8%), δ-cadinene (3.7%), β-selinene (3.6%), α-pinene (3.4%), linalool (3.4%), viridiflorene (2.9%), β-elemene (2.1%), β-eudesmol (2.1%), myrcene (1.6%), α-muurolene (1.6%), δ-cadinol (1.1%), and germacrene D (1.0%). \\
[Ramanoelina, Panja AR, et al. "Chemical composition of the leaf oil of Psiadia altissima (Compositeae)." Journal of Essential Oil Research 6.6 (1994): 565-570]

|{{:beta_pinene.jpg|β-pinene}} \\ β-pinene |{{:alpha_pinene.jpg|α-pinene}} \\ α-pinene |{{:ocimene_e_beta.jpg|(E)-ocimene}} \\ (E)-β-ocimene |

A commercial essential oil contained β-pinene (43.0%), α-pinene (6.9%), limonene (5.6%), (E)-β-ocimene (4.2%), sabinene (3.3%), caryophyllene (2.8%), myrcene (2.6%), germacrene D (2.3%), cadinadiene (1.7%), humulene (1.6%), (Z)-β-ocimene (1.3%), γ-elemene (1.3%), p-cymene (1.2%), β-phellandrene (1.0%), and β-elemene (1.0%) as main components. \\
[GC-MS of Dingadingana EO Essence Pur; Andreas Kraska 20210815] 

{{psiadia_altissima.jpg}} \\
Psiadia altissima (DC.) Drake, Îles Eparses (2011), photographer Jean Hivert (CBNM), Projet Flore des Îles Eparses du Conservatoire Botanique National de Mascarin, [[https://creativecommons.org/licenses/by-nc-nd/3.0/|CC BY-NC-ND 3.0]] [[http://legacy.tropicos.org/Name/2725926?tab=images]]