Table of Contents
What is the stem of grass called?
Some grasses have creeping stems called rhizomes that grow below the ground. Some grasses have creeping stems called stolons that grow along the ground. New grass plants start from rhizomes and stolons. Questions 1.
What are the stems of plants in the grass family?
A large family of plants, the Poaceae (or Gramineae), characterized by usually hollow stems, sheath-forming leaves in two longitudinal rows, and minute flowers arranged in spikelets. The grasses include food plants such as wheat, rice, corn, barley, oats, and sorghum and also plants used for turf, fodder, and shelter.
Which terms describe the parts of a plant?
The three main parts are: the roots, the leaves, and the stem. Each part has a set of jobs to do to keep the plant healthy. The roots absorb water and minerals from the soil and anchor the plant in the ground. The stem supports the plant above ground, and carries the water and minerals to the leaves.
What are the two stem types in grasses?
Grasses grow from fibrous root masses, but sometimes there is a below-ground root-stem structure called a rhizome (Figure 1) that is often mistaken for a root. It is important that you observe whether the specimen has a rhizome or not.
Does a grass have stem?
The stems of grasses range from fully erect to prostrate. Many grasses produce horizontal stems, either below ground (rhizomes) or above ground (stolons). The internodes, or stem regions between the nodes, are usually round in cross section and either hollow or filled with a spongy pith.
How are plants of grass family useful to us?
Grasses provide forage for grazing animals, shelter for wildlife, construction materials, furniture, utensils, and food for humans. Some species are grown as garden ornamentals, cultivated as turf for lawns and recreational areas, or used as cover plants for erosion control.
What are the horizontal stems of a grass called?
Stems are rarely branched above the ground and are called CULMS. Some grasses have stems which creep along the surface of the ground and give rise to new shoots (TILLERS) at their nodes. The horizontal stems are called STOLONS.
What are the main features of a grass plant?
TThe Grass Plant. Grass Stems – are mostly hollow, cylindrical and interrupted at intervals by swollen joints or nodes. Stems are rarely branched above the ground and are called CULMS. Some grasses have stems which creep along the surface of the ground and give rise to new shoots (TILLERS) at their nodes.
Which is part of a plant has no leaves?
The vascular system inside the stem forms a continuous pathway from the root, through the stem, and finally to the leaves. It is through this system that water and food products move. Shoot : A young stem (1 year old or less) with leaves. Twig : A young stem (1 year old or less) that is in the dormant winter stage (has no leaves).
What are the projections on a grass blade called?
In some grasses there are also projections on either side of the ligule called AURICLES. The structure and dimensions of the sheath, blade and ligule, and their hairiness provide good diagnostic features for identification. The Flower Head or Inflorescence