An erect, herbaceous perennial plant, yarrow is native to Eurasia but found all over the world. It produces one or more stems up to 1 metre tall, has a spreading rhizomatous form, branches near the top, and may be glabrous or hairy. It has a f [...]

A member of the grass family (Poaceae), Yorkshire Fog Grass is a widespread and common weed. It tolerates a wide range of conditions but is most invasive in wet soils in sunny or semi-shaded sites e.g. roadside drains, where it may exclude oth [...]