Crotalaria sessiflora, an
annual herb 20-60cm tall, occurs in sunny, moist to damp locations,
with many long brown hairs on parts like stems or leaves. Leaves are
2.5-10cm long, 4-8cm wide, and broad linear-shaped. Flowers,
blue-purple, 1cm long, set themselves on branch tips in a raceme
way; calyxes are significantly conspicuous with dense brown hairs,
deeply cleft into two, upper lobes cleft in two anew, and lower
lobes in three again. As flowering is over, the calyxes grow more
significantly and entirely envelop legumes. Bloom time:
July-September. |