RWFM 302 Test 1 Questions

What is the term for “on or at the side”?

Lateral

What structures delimit the grass spikelet and grass floret?

Glumes delimit spikelet, lemma and palea delimit the floret

What structures does a complete flower have?

Petals, sepals, functioning stamen, functioning pistil

If I had an emarginate apex, what would that look like?

It would have a little notch at the top (like an old man chin or a butt)

Any plant that lives more than 2 growing seasons is called what?

Perennial

A woody perennial plant of low stature with 1 to many trunks from near the base is a what?

Shrub

How is a serrate margin different than a dentate margin?

Serrate margins are pointed ascending to the apex of a leaf, whereas dentate margins are pointed perpendicular to the leaf margin edge

A small, dry, indehiscent fruit with the seed attached at one point to the ovary wall is a… ?

Achene

What does Antrorse mean?

Directed upwards towards the apex

The term geniculate means?

Bent sharply

What is the difference in palmate compound and pinnate compound?

Palmate compound leaflets all radiate from a central location where a pinnate compound leaf has leaflets that are opposite of one another along a rachis.

What does retrorse mean?

Directed downwards towards the base

The tubular basal portion of a leaf that encloses the stem is called ?

Sheath

An inflorescence branch that has some sessile and some pedicellate spikelets is called what?

Rame

What is the systematic arrangement of plants into groups based on common characteristics?

Plant classification

What is a bract?

a modified leaf associated with the flower that differs in size, shape, color, and texture

What are 3 reasons we use the Latin language for plant taxonomy?

1) Universal

2) “dead language”

3) Precise and accurate

4) Historical

What does “positively geotropic” mean?

That a structure grows/goes with the direction of gravity (e.g. it grows down into the ground in the direction of the pull of gravity)

The surface feature “rugose” means what?

wrinkled

Describe a lanceolate leaf shape.

Leaf is long, but is wider at the base than at the apex

What is a pinnule?

The smallest division of a bipinnately compound leaf; it is the leaflet of a pinna

Describe the growth form of a “grass-like” range plant.

Stems have no nodes; all stems solid; flowers either bristly or made of tepals

What are the 2 parts of a scientific name?

Genus = more broad

specific epithet = very specific

What does “dioecious” mean?

A species has separate male and female flowers on separate plants

What is the taxonomic suffix for family?

aceae

What does an oblique or unequal base mean?

The blade meets on the petiole at unequal locations (it’s slanted or not matching)

What are 3 of the 5 ways to classify range plants?

1) Growth form

2) Life span

3) Season of growth

4) Origin

5) Forage value

What is the taxonomic suffix for order?

ales

Who developed the binomial nomenclature system?

Carolus Linnaeus

Determinate vs. indeterminate inflorescence? Where’s the oldest flower?

Determinate = oldest at top and younger flowers are below

Indeterminate= oldest at bottom and younger flowers are above

What structure is the connective tissue at the outer side of a grass leaf at the junction of the blade and sheath?

Collar

What is the difference in a pistil and a carpel?

Pistil = stigma, style, ovary (does not include ovule)

Carpel = the seed producing part plus the pistil structure

How is a rame and spicate raceme different?

Rame = multiple branching inflorescence with pedicellate and sessile spikelets

Spicate raceme = pedicellate and sessile spikelets on a singular central inflorescence axis

Fruits? Name an indehiscent and dehiscent one

Indehiscent: nut, achene, caryopsis, drupe

Dehiscent: legume, capsule, legume, follicle