Roots
Stems
Leaves
Inflorescence/Fruit/Seed
100

This type of root system consists of a single, large primary root with smaller lateral roots branching off.

Taproot system

100

The region between two nodes.

Internode

100

A leaf of a plant consisting of several or many distinct parts (leaflets) joined to a single stem.

Compound leaf

100

The basic unit of inflorescence in grasses and sedges, consisting of two or more flowers subtended by one or more glumes.

Spikelet

200

These specialized root structures house nitrogen-fixing bacteria in legumes.

Root nodules

200

An underground, horizontal stem that puts out lateral shoots and adventitious roots.

Rhizome

200

A sharp-pointed leaf apex or other plant part where the margins form an angle between 45 and 90 degrees.

Acute

200

A bract, or leaf-like structure, typically found at the base of a spikelet.

Glume

300

This root type has a network of numerous, adventitious roots.

Root nodules

300

The papery tissue sticking up at the leaf-stem intersection on a grass.

Ligule

300

Margins are rolled downward to underside of leaf. 

Revolute

300

What is the main family featuring seedpod fruits? 

Fabaceae

400

This type of root arises from non-root tissues, such as stems or leaves.

Adventitious roots

400

The mark left on a stem or twig after a leaf falls off, indicating the point where the leaf's petiole (stalk) was attached.

Leaf scar

400

The side of a leaf facing away from the axis i.e. lower surface.

Abaxial

400

A type of unbranched, indeterminate inflorescence where flowers are borne on short stalks (pedicels) along an elongated central axis.

Raceme

500

These swollen, underground stems store nutrients, found on Dotted gayfeather (Liatris punctata).

Corm

500

Pores for gas exchange on bark of woody plants.

Lenticels

500

The shape of a thread or filament, meaning it is long, slender, and cylindrical.

Filiform

500

The overlapping arrangement of spikelets, like shingles on a roof or scales on a fish.

Imbrication

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