Aloysia Juss.

Commemorating Maria Luisa (1751–1819), Princess of Parma who married Charles IV of Spain.

Shrubs containing aromatic oils. Leaves opposite or whorled, simple, entire or toothed. Flower cluster a spike or raceme, narrow and open. Flowers often hairy, of 4 lobes, 2-lipped. Stamens 4, enclosed, attached at the middle of the flower tube. Ovary of 2 chambers, with 1 ovule in each chamber. Fruit enclosed by flower at maturity, forming 2 nutlets.

Softwood cuttings.

Aromatic oils used for teas, pot-pourri, etc.

Leaflets in 3s with a strong aroma of lemon when crushed.

37 species from the Americas.

Source: Spencer, R. (2002). Verbenaceae. In: Spencer, R.. Horticultural Flora of South-eastern Australia. Volume 4. Flowering plants. Dicotyledons. Part 3. The identification of garden and cultivated plants. University of New South Wales Press.

kingdom Plantae
phylum   Tracheophyta
class    Magnoliopsida
superorder     Asteranae
order      Lamiales
family       Verbenaceae
Higher taxa
Subordinate taxa
species         Aloysia citriodora Paláu