Which plant shows alternate arrangement of leaves?
In an alternate leaf arrangement, there is one leaf per plant node, and they alternate sides. Examples of trees and shrubs with an alternate leaf arrangement: Barberry (Berberis thunbergii) Black walnut (Juglans nigra).
What is an alternate leaf arrangement?
In alternate-leaved plants, the leaves are single at each node and borne along the stem alternately in an ascending spiral. In opposite-leaved plants, the leaves are paired at a node and borne opposite to each other.
What are the different types of arrangement of leaves?
The arrangement of leaves on a stem is known as phyllotaxy; leaves can be classified as either alternate, spiral, opposite, or whorled. Plants with alternate and spiral leaf arrangements have only one leaf per node.
What is the example of alternate Phyllotaxy?
In alternate phyllotaxy, a single leaf arises from the node of a branch. This type of phyllotaxy is observed in the sunflower, mustard and peepal. Plants with opposite phyllotaxy have two leaves arising from the node in opposite directions. It is found in guava and jamun plants.
What is the purpose of leaf arrangement?
The function of the arrangement of leaves (phyllotaxy) is to increase a plant’s ability to carry on photosynthesis by positioning the leaves in such away as tomaximize the surface area available to intercept sunlight. Leaves may be either caulescent (on obvious stems) or acaulescent (with no obvious stems).
What type of Venation does the leaf has?
Answer: The arrangement of veins in a leaf is called the venation pattern; monocots have parallel venation, while dicots have reticulate venation. The arrangement of leaves on a stem is known as phyllotaxy; leaves can be classified as either alternate, spiral, opposite, or whorled.
What causes leaf arrangement?
When the leaf lamina is entire without incision?
2 Types of Leaves A leaf is said to be simple, when its lamina is entire or when incised, the incisions do not touch the midrib. When the incisions of the lamina reach up to the midrib breaking it into a number of leaflets, the leaf is called compound.
What kind of tree is a red spruce?
Red spruce trees inhabit eastern North America. Perhaps it’s most well-known use is its effectiveness as a tonewood, which makes it a perfect choice for making guitars and violins. The tree is, however, susceptible to windthrow and acid rain, both of which can damage it rather easily.
Why are red spruce trees vulnerable to acid rain?
This species is quite vulnerable to acid rain, and many stands have died as a result. Spruce budworm (Choristoneura fumiferana) also attacks these trees. In addition to yielding valuable lumber, red spruce has also been used in the manufacture of pianos, guitars, mandolins, violins, and organ pipes.
What kind of leaves do opposite branching trees have?
Opposite branching trees can have simple or compound leaves, and the latter is made of several individual leaflets. Simple leaves can have smooth or toothed outlines, like the Sugar Maple (smooth) or the Red or Silver Maple (toothed).
How big does a yellow spruce tree get?
Quick Information Other Names Eastern spruce, yellow spruce, West Virg Tree Type Evergreen Identification Size :59-131 ft (18-40 m) Trunk Diameter Distribution Quebec, Ontario, Prince Edward Island, N Habitat Mixed and pure forests, upper montane an