Roots Flower
 

Monocotyledons versus Dicotyledons

 

Angiosperms are the flowering plants of the plant kingdom and are divided into two distinct groups, the:

Archontophoenix cunninghamiana

monocotyledons or monocots

Eucalyptus camaldulensis

dicotyledons or dicots

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Monocotyledons

(mono - one; cotyledon - seed leaf)

Monocotyledons have only one seed leaf within the plant seed.

Plants in this group are mostly herbaceous plants that are soft, green and non-woody.

They can be annuals or perennials. Many are palms and grasses.

Roots: fibrous root system

Stem: non-woody, veins in the stem are scattered.

Flowers: flower parts are usually in threes or multiples of three.

e.g. three petals, sepals or stamens.

Leaves:

  • usually long and slender

  • have an entire (unbroken) margin

  • parallel venation

  • sheathing leaf attachment - the leaves wrap around the stem and add strength to it.

Click on the parts of the monocot below to check its features.

A typical monocot  

Flower parts are usually in multiples of 3.

Monocot leaves have parallel veins and wrap around the stem.

The stem is non-woody.

Monocots have a fibrous root system.


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Dicotyledons

(di - two; cotyledon - seed leaf)

Dicotyledons have two seed leaves within the plant seed.

Plants in this group may be woody, herbs, shrubs, trees, herbaceous, annuals and perennials.

Roots: develops a tap root system. If grown from cuttings a fibrous root system develops.

Stem: can be woody, non-woody or succulent.

The stem has nodes and internodes.

Veins within the stem are arranged in a ring.

Flowers: flower parts are usually in fours or fives.

e.g. four/five petals, sepals or stamens.

Leaves:

  • vary in shape and size

  • may have an entire or toothed margin

  • network of veins arranged in patterns or lines

  • have a midvein or midrib which runs down the middle of the leaf

  • have a petiole or sessile.

Click on the parts of the dicot below to check its features.

A typical dicot  

Flower parts are usually in 4's or 5's.

Dicot leaves have a midvein and a network of veins.

Dicots have nodes and internodes on their stem.

Dicots have a tap root system.

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