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Lobularia maritima

Lobularia maritima
Sweet alyssum.jpg
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Rosids
Order: Brassicales
Family: Brassicaceae
Genus: Lobularia
Species: L. maritima
Binomial name
Lobularia maritima
(L.) Desv.

Lobularia maritima syn. Alyssum maritimum, common name sweet alyssum or sweet alison, also commonly referred to as just alyssum (from the genus Alyssum in which it was formerly classified) is a species of low-growing flowering plant in the family Brassicaceae.

The genus name Lobularia comes from a Greek word meaning "small pod", referring to the shape of the fruits. The name of the species maritima refers to its preferred coastal habitat.

It is an annual plant (rarely a short-lived perennial plant) growing to 5–30 cm (2–12 in) tall by 20–30 cm (8–12 in) broad. The stem is very branched, with dense clusters of small flowers. The leaves are 1–4 mm long and 3–5 mm, broad, alternate, sessile, quite hairy, oval to lanceolate, with an entire margin.

The flowers are about 5 millimetres (0.20 in) in diameter, sweet-smelling, with an aroma similar to that of honey, with four white rounded petals (or pink, rose-red, violet and lilac) and four sepals. The six stamens have yellow anthers. The flowers are produced throughout the growing season, or year-round in areas free of frost. They are pollinated by insects (entomophily). The fruits are numerous elongated seedpods rather hairy, oval to rounded, each containing two seeds. The dispersal of seed is effected by the wind (anemochory)

This plant is native to the Mediterranean region, Macaronesia (Canary Islands, Azores) and in France in the Bay of Biscay. It is widely naturalized elsewhere in the temperate world. There is an endemic subspecies in the local flora of the Columbretes Islands.


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