Translations:Benutzer:Arian/Klett-Mini-Test/1572/en

leaflets stand erect and gather into a bouquet-like rosette. With the elongation of the stem, the pairs of leaves follow one another in decussate arrangement at strikingly large intervals (Figure 33, p. 431). The leaflets become progressively narrower, more pointed, and arrange themselves in pairs. Toward autumn the leaves shorten, the pinnation becomes denser, clasping the stem. Finally, with the coming into bloom, the leaves draw themselves back into the stem, and only the bracts remain — until these too disappear in full flowering. On boggy, shaded sites, valerian tends toward rampant growth.