Wednesday, July 11, 2012

White Flower Celery Family Identification

Celery


Apiaceae, the celery family, includes several culinary and medicinal plants such as dill, carrot, coriander, fennel and angelica. The easiest way to identify members of this family is to look at there flowers. But the vegetation will also help you a little.


Umbel








Umbel


You can recognize plants of the family Apiaceae by its slightly convex to flat-topped inflorescence (cluster of flowers) called an umbel. Each of the flowers in this cluster is attached by a short stem to the end of the peduncle (flower stalk).


Petals and Sepals


Each flower has five small white, yellow or pink petals. The calyx (the little cup of usually green leaves called sepals in which the petals of most other flowers rest) is very small in this family, and it may be absent altogether.


Five Stamens


The plants of this family have five stamens per flower. A stamen is a male flower part that bears egg-fertilizing pollen at its tip.


The Ovary


In this family, the ovary with its eggs is buried out of sight in the tissue at the end of the stem on which the flower rests. For this reason, the flower is said to be "epigynous" (lying above the female part) and the ovary is called "inferior" because it is below the rest of the flower.


The Fruit


The fruit of Apiaceae is a schizocarp, which is two capsules attached to one another with each capsule containing a seed. The two capsules eventually separate, and the wind blows them away.


Vegetative Factors


The vegetation of Apiaceae is less helpful in identification that the inflorescence. Plants of this family usually have hollow stems between the points where leaves are attached (called nodes); leaves are often divided like in celery, and they usually are not paired.

Tags: this family