Fern Leaf Yarrow

Growth habit

Herbaceous

Perennation

Long-lived polycarpic perennial

Location

Robison Herb Garden

Source of plant

Richters

Description

Stems c.175cm, erect, unbranched. Lower stem leaves c.19x8 cm, broadly ovate, pinnatisect, the segments toothed or pinnatifid with rounded, forward-pointing segments continuous with teeth of the rachis, primary segments not overlapping; middle stem leaves c.11 x 3cm, elliptic or ovate. Capitula in very dense, domed corymbs 8-10cm across; involucre c.5 x 3mm, weakly and sparsely hairy, outer bracts triangular, carinate, with a pale midrib (narrowly surrounded green) and a pale, scarious margin. Ray florets 2-4, ligule c.1 x 1.5mm, tightly reflexed, yellow (13A); disc florets yellow.

USDA Hardiness Zone

3