Thalictrum flavum
Yellow Meadow Rue ( Thalictrum flavum ), illustration.
The Yellow Meadow Rue ( Thalictrum flavum ) is a plant that belongs to the subfamily of Isopyroideae within the family of the buttercup ( Ranunculaceae ).
Description
The Yellow Meadow Rue is a perennial herbaceous plant (up to 200 ) cm reaches the plant height (60 to ) 70 to 110. Underground runners are always present. The stems are bare and slightly edged up rinnig. The composite leaves are pinnate two to three times. The green, more than a little tired leaflets are mostly three - or five-lobed or rows. The lower leaflets usually have small membranous addition Papers ( Stipellen ).
It blooms from June to August. Many fragrant flowers are borne in a paniculate inflorescence, which has a narrow elongated outline. 2,3 to 3.1 mm long nutlets have six longitudinal ribs.
The chromosome number is 2n = 84; the species is dodecaploid.
Ecology
The Yellow Meadow Rue is a Hemikryptophyt and a Kriechpionierpflanze. Your floral scent indicates that it is pollinated by the wind, not only but also of insects (pollen flower). The fruits are one-seeded nutlets and they spread as wing aviators and floating fruits.
Ingredients
The roots contain the alkaloid berberine yellow-colored and other basic substances and are suitable for dyeing wool.
Occurrence
The range of this often confusing Stromtalpflanze ranges from Ireland, West of France and the Basque Country in the west to the basin of the Ob beyond the Urals. On the northern border, the distribution ends at the beginning of the Arctic climate zone, in the south the closed area of distribution extends to the Rhone and Danube floodplains; south of it, there are only very sporadic occurrence. Specified deposits from Siberia could not be confirmed.
The Yellow Meadow Rue prefers moist, nutrient-poor soils, such as ditches and fens. Since today the meadows are more fertilized, it is not so often seen. After Ellenberg she is a half-light plant, intermediate - growing continental and a Verbandscharakterart the meadowsweet - shore communities ( Filipendulion ulmariae ).
System
The Yellow Meadow Rue was first published in 1753 by Carl Linnaeus in Species Plantarum. An important synonym is Thalictrum morisonii CC Gmel. Formerly known as sub-species of Thalictrum flavum Thalictrum viewed taxa to be simplex subsp today. simplex ( Thalictrum flavum subsp Syn. costae ( Timb. - Lagr. Debeaux ex ) Rouy & Foucaud ), and Thalictrum speciosissimum L. (syn. Thalictrum flavum subsp. glaucum ( Desf. ) Batt. ) provided.
Pictures
Stems and leaves.