7145.020 Aloysia Juss.

Staples, G.W. & Herbst, D.R. (2005) A Tropical Garden Flora; plants cultivated in the Hawaiian islands and other tropical places. Bishop Museum Press, Honolulu, Hawaii.

Description of the genus

Aromatic shrubs or small trees. Leaves whorled or opposite, each pair at right angles to next, simple; blades entire or toothed. Inflorescence axillary, in elongate spikes or racemes; bracts present. Flowers bilaterally symmetrical, 4-parted, widely spaced along spike; calyx tubular, angled, toothed; corolla funnel-shaped; limb lobed. Fruit dry, composed of 2 nutlets. Seed one per nutlet.

Derivation of name: Latinised form of Louisa, for Maria Louisa, wife of King Charles IV of Spain.

Worldwide: 37 species native to the southwestern USA through Mexico and from Brazil and Ecuador south to Argentina and Chile.

Zimbabwe: 1 cultivated taxon.

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Species	Content
citrodora Palau

Other sources of information about Aloysia:

Our websites:

Flora of Burundi: Aloysia

External websites:

African Plants: A Photo Guide (Senckenberg): Aloysia
BHL (Biodiversity Heritage Library): Aloysia
EOL (Encyclopedia of Life): Aloysia
GBIF (Global Biodiversity Information Facility): Aloysia
Google: Web - Images - Scholar
iNaturalist: Aloysia
IPNI (International Plant Names Index): Aloysia
JSTOR Plant Science: Aloysia
Mansfeld World Database of Agricultural and Horticultural Crops: Aloysia
Plants of the World Online: Aloysia
Tropicos: Aloysia
Wikipedia: Aloysia