Grass parts

Question 1

lemma

Answer 1

the lateral and larger sheath of the grass floret

Question 2

palea

Answer 2

the medial and smaller sheath of the grass floret

Question 3

glume

Answer 3

the non-seed-housing portion of the spikelet, most inferior portion of spikelet

Question 4

tiller / culm

Answer 4

one horizontal unit of grass from inflorescence to crown

Question 5

spikelet

Answer 5

the seed bearing portion of grass, each spikelet may contain one or several florets

Question 6

ligule

Answer 6

the sometimes membranous portion of the leaf blade found at its junction with leaf sheath

Question 7

auricle

Answer 7

the rarely present portion of the grass collar, found on the leaf sheath opposite to the ligule

Question 8

collar

Answer 8

comprehensive term relating to the ligule and auricle

Question 9

phytomer

Answer 9

a single unit of a grass stem, including the node, internode, leaf blade and sheath

Question 10

internode

Answer 10

the portion of stem occurring between two nodes

Question 11

node

Answer 11

the enlarged portion of grass stem not (usually) associated with a leaf blade

Question 12

inflorescence

Answer 12

the last phytomer found on a grass tiller, location where spikelets are found

Question 13

spike

Answer 13

florets or flowers are attached sessile to the plant stem

Question 14

raceme

Answer 14

florets or flowers are attached per a pedicle to the plant stem

Question 15

panicle

Answer 15

florets or flowers are attached to the plant stem by pedicles which branch as least once

Question 16

digitate

Answer 16

several pedicles branch from the same location, such as a palm leaf

Question 17

rachilla

Answer 17

portion of stem attaching florets to each other

Question 18

pedicel

Answer 18

branch from the stem attaching spikelets to stem

Question 19

dorsal awn

Answer 19

finger-like projection coming from the base of a floret

Question 20

ventral awn

Answer 20

finger-like projection coming from the top of a floret