septorial brown spot of sunflower

例句：

1. 1. The plant has a septate stem and branches profusely.
   这种植物有分枝的茎，并且分枝繁茂。
2. 2.The tree is known for its septate leaves.
   这棵树以其分枝的叶子而闻名。
3. 3. The flower has five septate petals.
   这种花有五片分枝的花瓣。