Myosotis arvensis

Morphological description

The Field Forget-me-not is an annual herbaceous plant, rarely biennial, belonging to the family Boraginaceae, which presents an erect or ascending herbaceous habit, generally branched from the base. The height varies between 10 and 30 cm, but can reach up to 60 cm in favorable conditions. The stem is thin, robust, and widely branched, covered with straight hairs: in the lower part the hairs are patent (i.e., spreading outward), while in the upper part they become appressed (adhering to the stem).

The basal leaves are gathered in a rosette, oblanceolate in shape, with dimensions ranging from 5-9 mm wide by 15-27 mm long, up to a maximum of 15 x 80 mm; they are subsessile (thus with a very short or absent petiole) and acute at the apex. The cauline leaves are smaller, sessile, arranged alternately along the stem, and all are covered with appressed straight hairs oriented towards the leaf tip.

The inflorescence is an elongated and multiflorous scorpioid cyme, without bracts, with thin, sub-erect peduncles generally longer than the calyx during fruiting. The calyx is gamosepalous, funnel-shaped, 2-2.5 mm long at flowering and elongates up to 5-7 mm during fruiting; the lobes are narrowly triangular and the calyx is covered with patent hooked hairs.

The flowers, characteristic and easily recognizable, have five light blue or bluish petals, about 3 mm in diameter, arranged in a cup shape with a yellow throat at the center. The buds initially appear pinkish. The corolla has a tube about 2 mm long. The stamens are five, with white filaments inserted in the upper part of the corolla tube and yellow anthers.

The fruit is a schizocarp composed of four mericarps called nutlets, each about 1.2 x 2 mm, ovate in shape with an acute apex and rounded base; young ones are greenish, while at maturity they become brown-blackish.

The root system is short and oblique, suitable to support the plant in the typical conditions of its habitats.

Habitat and distribution

The Field Forget-me-not is a species widely distributed throughout Italy and the Mediterranean basin, extending from Europe to Western Asia. It is common in anthropized and semi-natural environments such as cultivated fields, roadside edges, embankments, flower beds, and paths. It prefers clayey and fresh soils, often in disturbed and sunny or well-lit areas.

In Italy it is present throughout the territory, from the plains up to medium altitudes; the species has no precise altitudinal limitation but prefers hilly and low mountain areas, where it finds favorable growth conditions.

Flowering period

Flowering occurs mainly between March and July, with possible local variations related to climate and altitude. In warmer areas flowering can start as early as March, while in cooler zones it tends to concentrate between April and June.

Ecology and pollination

The Field Forget-me-not reproduces through seeds that develop in the small schizocarp fruits. Pollination is entomogamous, mainly carried out by pollinating insects attracted by the blue color of the flowers and the presence of the yellow throat, which acts as a visual guide for pollinators. Common visiting insects include bees, bumblebees, and other hymenopterans, as well as dipterans and beetles. The flower structure, with a corolla tube and stamens inserted in the upper part, facilitates contact of insects with the reproductive structures.

Seed dispersal occurs by falling near the mother plant, with possible secondary transport by animals or water, but no specific long-distance dispersal strategies are known.

Curiosities and traditional uses

The common name “Forget-me-not” is linked to numerous legends and popular traditions. One of the best known tells of a medieval knight who, while gathering a bouquet of these flowers for his beloved, fell into a river and, before drowning, shouted “forget me not”. Hence the symbolic meaning of the flower as an emblem of love and affectionate memory.

Historically, the Field Forget-me-not also had uses in folk phytotherapy, although with limited specific documentation: it was sometimes used in infusions for its soothing properties, especially in the treatment of eye inflammations and as a traditional remedy for cough. However, today it is considered more an ornamental or wild flower than a medicinal plant of importance.

The flower is also highly appreciated in gardening, where some related species are cultivated to beautify flower beds and gardens, thanks to the delicacy of its small bluish flowers.

Etymology

The genus name “Myosotis” derives from the Greek “mys” (mouse) and “ous, otos” (ear), referring to the shape of the leaves which resemble mouse ears. The specific name “arvensis” derives from the Latin “arvum”, meaning field or arable land, highlighting the typical habitat of the species.

The Italian common name “Nontiscordardimè” dates back at least to the 15th century and is closely linked to the romantic and popular tradition associating the flower with memory and love.

Sources

• Prof. P.V. Arrigoni, "Flora analitica della Toscana", "Flora dell'Isola di Sardegna"
• Acta Plantarum - Flora delle regioni italiane (sheet by Roberta Alberti)