Carrot plants are relatively high, with a height of 15 to 120 cm.
Snake bed plants smaller, shorter, about 10 to 60 cm tall, if the same number of years for comparison, you can easily distinguish
Carrot inflorescence is large, the flower is compound cyme, the bract is pinnate, the umbel has sticky hook, and has bad smell.
The flowers of the snake bed are similar, but the catkins are small. The flowers are cymose, the involucres are not divided, and the umbels are not sticky.
In the former, the leaves grow densely and have thick underground stems, and the leaves grow round the main stem of the plant. The latter leaves relatively sparse, there is no thick underground stem.