| But this warbler is usually associated with tangled vegetation near water or with reedbeds containing alders and an undergrowth including bramble, nettle and willowherb. |
| They love wild flowers such as poppies, valerian, loosestrife, willowherb, teasel and meadowsweet. |
| Other imports include the poisonous corncockle from the Mediterranean, the Himalayan balsam and the New Zealand willowherb, an aggressive weed. |
| Not long ago so many plants sprouted from a single packet of seed that willowherb itself might have been jealous. |
| There's the winter debris of the summer's plants, especially the strong gaunt stands of thistles, frizzy wands of rosebay willowherb, and upturned umbrellas of umbelliferae. |
| Among the common wildflowers are one-flowered cinquefoil, woolly lousewort, alpine willowherb, three saxifrages, and an Indian paintbrush. |
