Chapter 2.6 Observing Leaves Flashcards
Most leaf blades attach to the node by a stalk called a _____
PETIOLE
The 4 types of leaf arrangements are _____, ______, and _____, ______
OPPOSITE, ALTERNATE, WHORLED, AND ROSETTE.
The leaves of some plants , such as grasses, are ______ , they have no petioles but instead attach directly to the stem with a sheath.
SESSILE
Leafs are ____ when two leaves grow from one node but on opposite sides of the stem.
OPPOSITE
______ leaves are individual leaves - one for every node - that grow in an alternating pattern along the stem.
ALTERNATE
A ______ consists of three or more leaves growing from the same node on the stem.
WHORL
A ______ is a cluster of leaves growing around the base of a plant.
ROSETTE
Plants with _____ leaves have only one blade attached to a petiole.
SIMPLE
A ______ leaf has more than one blade joined to a petiole.
COMPOUND
The blades of a compound leaf are called _____
LEAFLETS
A compound leaf is ______ compound when all the leaflets attach at a common point on the petioles tip.
PALMATELY
A compound leaf is ______ compound if the leaflets attach at intervals along the petiole.
PINNATELY
Some leaves have margins that are smooth and unbroken, or ______
ENTIRE
Others are _____, with either sharp teeth or large, blunt teeth.
TOOTHED
A ______ leaf has extensions of itself that can be blunt or end in a sharp point.
LOBED
