Graminoids

Question 1

What is the grass family called?

Answer 1

Poaceae

Question 2

what family is Barley Hordeae in?

Answer 2

Poaceae (grass)

Question 3

what family is Timothy agrostideae in?

Answer 3

Poaceae (grass)

Question 4

What family is Fescue Festuceae in?

Answer 4

Poaceae (grass)

Question 5

What family is Oat aveneae in?

Answer 5

Poaceae (grass)

Question 6

What family is Canary grass phalaride in?

Answer 6

Poaceae (grass)

Question 7

What type of flower does timothy have?

Answer 7

Very dense, spike like. short cylindrical panicle. lemmas are shorter than glumes.

Question 8

What type of leaves does timothy have?

Answer 8

Green to grey, flat, 1-2mm long ligules.

Question 9

What type of flower does foxtail barley have?

Answer 9

Spike, long hair like awns, green to purplish.

Question 10

What type of stems do grass have?

Answer 10

They have rounded stem called a culm which is hollow.

Question 11

What is the flower called on grass?

Answer 11

inflorescence

Question 12

What are special about grass leaves?

Answer 12

They are arranged in an alternate pattern, they have parallel unbranching veins. covers the culm like a sheath.

Question 13

What is a spikelet?

Answer 13

one or more flowers and two membranes called a glume

Question 13

What type of structure is a spike?

Answer 13

(Grass) main axis does not have a branch, spikelets are stalkless

Question 13

what type of structure is a Raceme?

Answer 13

(Grass) Main axis does not branch, spikelets are stalked

Question 14

What type of structure is a panicle?

Answer 14

(Grass) Main axis branches , spikelets are stalked.

Question 15

What two structures help with ID and where are they located?

Answer 15

They are called the lemma and palea. they are around the flower

Question 16

How are grasses pollinated?

Answer 16

Wind pollination

Question 17

What family is “Sedges” carex in?

Answer 17

Cyperaceae (Sedge)

Question 18

What family is cyperaceae?

Answer 18

the sedge family

Question 19

What family is “spike-rushes” Eleocharis

Answer 19

Cyperaceae (Sedge)

Question 20

What family is “beak-rushes” Rhynchospora in?

Answer 20

Cyperaceae (sedge)

Question 21

What family is “Cotton-Grasses” Eriophorum in?

Answer 21

Cyperaceae (Sedges)

Question 22

What family is “bulrushes” scirpus in?

Answer 22

Cyperaceae (Sedges)

Question 23

What type of leaves do sedges have?

Answer 23

long, narrow, parallel veined leaves

Question 24

What type of flowers do sedges have?

Answer 24

Inconspicuous flowers, need magnification to see, flowers have scale like bracts.

Question 25

How are sedges different from grasses?

Answer 25

the ligule is fused to the base of the leaf blade in sedges and not attached on grasses.

Question 25

what type of stems do sedges have?

Answer 25

triangular stems that is solid, have no nodes

Question 26

What type of pollination do sedges use?

Answer 26

wind pollination

Question 27

What is the sedge structure of a flower?

Answer 27

Made up of lots of smaller florets, they are grouped together into cylindrical or oval clusters called spikes or spikelets. Only have one glume

Question 28

What family is all unisexual?

Answer 28

Carex

Question 29

What family is bisexual?

Answer 29

sedges. They have both male and female parts. Three stamens, two to three stigmas and an ovary inside a covering called a utricle.

Question 30

What is the fertilized ovary called?

Answer 30

nutlet

Question 31

what family is unisexual?

Answer 31

Sedges. has male and female flowers. male florets have three stamens and one glume, female florets have a bottle shaped utricle with one glume below

Question 32

What is the largest family in north america boreal region?

Answer 32

Carex, it is also the only sedge to have a special flower structure called perigynium.

Question 33

What does the ovary in the carex develop into?

Answer 33

it will develop into a seed like fruit called achene. it is covered by a membranous sac called perigynium.

Question 34

What family is called "Rushes" Juncus?

Answer 34

Juncaceae (Rush)

Question 35

What is the rush family called?

Answer 35

Juncaceae

Question 36

What family is "wood-rushes" luzula in?

Answer 36

Juncaceae (Rush)

Question 37

What is special about the rush family?

Answer 37

They grow straight up and have unjoined cylindrical stems.

Question 38

What structure does a rush stem have?

Answer 38

It is full of pith, as well as having internal cross walls or structures that provide support

Question 39

What type of leaves do rushes have?

Answer 39

Usually have few to no leaves. if they do have leaves they are clustered around the base of the stem. The stem does the job of photosynthesis when leaves are not present.

Question 40

what type of flowers do rushes have?

Answer 40

The flower is called, inflorescence, might have a bract directly below that. Rushes produce fruits called capsules. They are bisexual. Can cluster and look lateral (coming out of the side)

Question 41

How are rushes pollinated?

Answer 41

Wind

Question 42

What are the segments around flower capsule called on rushes?

Answer 42

They have six papery segments covering it called perianth segments.

Question 43

What type of fruit do true rushes have?

Answer 43

a bunch of tiny seeds when ripe

Question 44

what type of fruit do wood rushes have?

Answer 44

Three large seeds when ripe.