DHAARRII (ധാരി):

Geographical distribution:

Emilia sonchifolia can grow anywhere from sea level to 1000 meters. It exists over a wide range of conditions from the tropics to grasslands, waste areas, roadsides, and partially shaded areas. It is tolerant of acid conditions. Emilia sonchifolia is a native of Central and South America.

ECOLOGICAL ASPECT:

Emilia sonchifolia completes its life cycle in ~90 days. There are two types of seed, which are defined by the color of the achene.^[12] The first, a female outer circle of florets of a flower head produces red and brown achenes. The second is the inner, off-white hermaphrodite florets.^[13] Most seeds germinate at 27 °C but those that develop from outer florets germinate under deep shade. Plants only emerge from seeds near the surface, however, some seed can germinate (4%) while buried deep (4 cm).^[12] A study, states 29% of seeds germinated when placed at 0.5 cm below the soil, while only 3% germinated when buried 1 cm.^[12]^[14] The seed carries a pappus of hairs, indicating the use of wind as a dispersal agent.

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