Pelargonium graveolens L’Hér. ex Aiton citronellol (21.9–37.5%), citronellyl formate (9.8–20.6%), geraniol (6.0–16.5%), geranyl formate (1.5–6.5%), menthone (up to 13%), isomenthone (up to 9.9%), and linalool (0.8−14.9%) influenza type A (H1N1) 95% inhibition at 0.3% [46]