Lecture 15

Question 1

How many grass species occur in Ireland

Answer 1

135 species

Question 2

Name the common agricultural grasses

Answer 2

Perennial ryegrass
Sweet vernal
Meadow foxtail
Italian ryegrass
Crested dogstail
Red fescue
Cocksfoot
Rough meadow grass
Sheep’s fescue
Yorkshire fog
Smooth meadow grass
Couch
Creeping bent
Annual meadow grass
Flote grass
Common bent
Timothy
Marsh foxtail

Question 3

Where does leaf blade grow from

Answer 3

Base of the blade

Question 4

What is the Sheath

Answer 4

The lower part of the leaf that hugs the stem

Question 5

Example of leaf tip shapes

Answer 5

•Canoe shaped (hooded)
•Pointed

Question 6

Write short note on Culm

Answer 6

•Flowering stem
•Flower shape
•Spike
•Panicle

Question 7

What are nodes (internode)

Answer 7

•Elbows along the culm that add strength
•Allow change in direction for growth

Question 8

Example of flower structures

Answer 8

• Rachis
• Palea
• Lemma
• Glumes

Question 9

Grass rooting terminology

Answer 9

• Cespitose / tufted
• Rhizomatous
• Stoloniferous

Question 10

Name the grass inflorescence types

Answer 10

•Raceme
•Panicle
•Spike