Myosurus minimus

Little mouse tail ( Myosurus minimus )

The little mouse tail ( Myosurus minimus ), also referred to as Mousetail or dwarf mice tail, is a flowering plant in the family of the buttercup family ( Ranunculaceae ). It is widespread in the northern hemisphere.

• 5.1 Notes and references

Description

Vegetative characteristics

The little mouse's tail grows as annual herbaceous plant, reaching heights of growth of about 5 to 12 centimeters. All plant parts are completely bald. All leaves are borne in basal rosettes. The leaf blades are narrowly linear and grassy with a blunt upper end and smooth leaf margin at a length of up to 6 inches and a width of no more than 2 millimeters.

Generative features

The copy of one or usually more upright Blütenstandsschäfte are formed, which are longer than the leaves and terminate in a single terminal flower. The hermaphrodite flowers are radial symmetry. The bald base of the flower or floral axis is cylindrically shaped and grows after anthesis to about six times more for up to 6 centimeters long fruit axis. The five bright green sepals are oval with a length of 3 to 4 millimeters. At the bottom they have an approximately 2 millimeters long, the pedicel adjacent spur. The five yellowish- green honey leaves are about as long as the sepals and thready with tongue-shaped widened upper end. There are five to ten yellow stamens present. The more than 50 carpels arranged spirally in part.

The single-seeded fruits are about 1 millimeter long and only 0.06 mg heavy nutlets.

Ecology and phenology

The little mouse's tail grows as Therophyt in herds. The foliage leaves are usually formed in March.

The flowering period is primarily in May and June. Ecologically flowers are gay game " nectar leading disk flowers ". Pollinators are tiny two-winged, beetles and parasitic wasps. Spontaneous self-pollination is possible if during the stretching of the floral axis passing strip the scars on the storage bags.

There is a wind spreader; next to it are the fruits of gravity spread, the adhesive spread with soil and spread as Regenschwemmlinge. Recently, the fruits are also variously spread by grazing livestock. The seeds are long-lived. Fruit ripening is from May to October.

Occurrence and risk

Myosurus minimus occurs from Scandinavia to southern Europe and North Africa. He is also to be found in Western Asia and eastern North America. He is a Eurasian- submediterranes Florenelement. It is widespread in Central Europe only regional basis.

In Austria the little mouse's tail is rare and locally as high risk, while it is in Switzerland may now extinct. The little mouse's tail can be found scattered to fairly widespread in northern and eastern Germany. To the west and south it is increasingly rare and lacking in many places throughout.

The little mouse's tail is focused on pioneering and dwarf Bins companies on moist to exchange ate ( periodically flooded ), moderately nutrient - and base-rich, sometimes muddy sand and clay soils. Such locations can be found, for example, cattle grazing on impact and watering places, in fields and in lanes unpaved dirt roads, sometimes on the banks of water bodies.

Pictures

• Habit
• Habit
• Flower