Euchiton collinus

Euchiton collinus, the creeping cudweed, is a herb native to Australia and New Zealand. It has become naturalized in a few places in the United States.
Euchiton collinus is a biennial or perennial herb up to tall, spreading by means of stolons and rhizomes. Leaves form a basal rosette surrounding the base of the stem and also individually higher up the stem. The plant produces a flower heads in a hemispheric cluster across. Each head has 40-60 pistillate flowers around the edge of the head plus 3-5 bisexual florets toward the center.