Sub-category: Aster family
An annual plant native to North America and Northeast Asia but which has become a cosmopolitan weed. The flower head is cone-shaped, composed of dense-packed yellowish-green corollas, and lacking ray-florets. The leaves are pinnately dissected. The flowers exude a chamomile/pineapple aroma when crushed. The plant grows 5.1 to 40.6 cm high.
The plant grows well in disturbed areas, especially those with poor, compacted soil. It can be seen blooming on footpaths, roadsides, and waste areas. Flowerheads are produced from March to September.