PYRETHROPSIS (Chrysanthemum) hosmariensis. Morocco. Raging bands of botanists have all but dismembered the genus Chrysanthemum in recent years. This species (or at least its name) is one of the fruits of their struggles. It is a woody-based perennial forming low, dense hummocks. The leaves are crowded around the short stems, each divided into three narrow, grey segments. The flower heads are presented singly on stalks 6-12" tall. Each is up to 2" across, with many notched white rays and a wide golden center. This is an interesting plant for larger rock gardens, sunny borders and open banks and meadows, requiring little maintenance. It thrives in sun and well drained soil, with moderate to occasional watering. Hardy to 20^oF. or less.