Flowers lemon yellow, unspotted, upward-facing. Very similar to orange daylily, but smaller and with unspotted petals. Introduced from Asia and escaped from cultivation.
Most members are abundant in the tropics.
A lily is a lilium in Latin, a leirion in Greek, and a laleh in Persian. For more information about daylilies, see Orange Daylily . Daylilies are sometimes found growing on people's wrists and clothing, as is shown in bottom photo at the right.