Veronica longifolia

Langblättriger speedwell ( Veronica longifolia)

Resulted in many surveys as Langblättriger blue loosestrife ( Pseudolysimachion longifolium (L.) Opiz ) - - Langblättriger speedwell ( Veronica longifolia ) is a flowering plant in the family of the plantain family ( Plantaginaceae ). This relatively large growing prize - species grows especially in current valleys.

Description

Vegetative characteristics

In the long-leaved speedwell is achieved centimeters to a perennial herbaceous plant, the plant height of 60 to 100 (up to 120 ). The upright, glandular loose stems in its upper part downward on your hair. The lanceolate stem leaves are pointed and sharp cut in the margin.

When Veronica longifolia subsp subspecies. longifolia is the leaf base truncate to cordate; the mostly opposite arranged leaves are slightly wider ( up to four centimeters) and cut regularly. When subsp subspecies '' Veronica longifolia. maritima are the three to vierwirtelig growing leaves rather narrow - lanceolate, serrated irregular and the leaf base is thickness taper. The distinction between the subspecies, however, is still controversial taxonomically.

Generative features

Between June and August the Langblättrige Speedwell develop conspicuous racemose inflorescences. These are arranged and many flowered spike -like. The blue (rare blue purple ) flowers are funnel- shaped; the flower tube is longer than wide.

Occurrence and Protection

The distribution area is the Nordic- eurasia table - continental. In Germany, the western border of the distribution is achieved.

In Germany the Langblättrige prize is to be found in the north with scattered frequency along the major river valleys ( for example, on the Lower Rhine, the Ems, the Aller, the Elbe, Havel and Oder). In the south it is rare, with an emphasis in the Rhine -Main region and the Danube to find.

The Langblättrige prize is a Stromtalpflanze that thrives in moist shore herbaceous communities, to Auengebüschen, in bog meadows and ditches. The sites are usually alternating wet to wet, nutrient -and base- rich; especially there are musty - humic clay or peat soils, but also sandy loam soils. The species is a thermophilic light partial shade plant. After Ellenberg it is also a weak acid to weak base pointer and a Verbandscharakterart the meadowsweet - shore communities ( Filipendulion ulmariae ).

The Langblättrige prize is according to the Federal Species Protection Ordinance " special protection " and is in the German Red List as "vulnerable" classified.

Use

The Langblättrige Speedwell is also cultivated as an ornamental plant. There are several varieties in purple, blue and white; Furthermore, the hybrids with the aged men Speedwell ( Veronica spicata Syn: Pseudolysimachion spicatum ). The ornamental plants run wild easily; with isolated occurrences in the countryside, just outside of stream valleys, so there is often a suspicion of such savagery.