AC-Ch. 2 Tree Biology Flashcards
Alternate
Pertaining to Bud or leaf arrangement, one leaf or bud at each node situated at alternating positions along the stem. In this arrangement, the leaves are not directly across from each other.
Class
Taxonomic group below the division level but above the order level.
Compound leaf
Leaf with two or more leaflets.
Conifer
Cone-bearing tree or other plant that has its seeds in a structure called a cone.
Cultivar
Cultivated variety of a plant. Cannot be reproduced without human assistance. Usually propagated asexually.
Dicotyledon
Plant with two cotyledons in its embryo; netted or palmate leaf veins; and flowers with three, four, or five petals, or petals in multiples of these numbers.
Division
Taxonomic group below the kingdom level but above the class level.
Entire
Term describing a leaf margin without teeth.
Family
Taxonomic group under the order level and above the genus level
Foliage
Leaves of a plant
Forma
Group of plants within a species having distinct variations that occur sporadically and naturally
Genus
Taxonomic group, composed of species having similar fundamental traits. Botanical classification under the family level and above the specific epithet level.
Hybrid
Plant resulting from a cross between two or more other plants that are more or less alike.
Identification key
Diagnostic aid to help identify plants and other organisms.
Kingdom
Primary taxonomic group, separating plants from animals
Leaf apex
Tip of the leaf blade
Leaf axil
Point of attachment of a leaf petiole to a stem
Leaf base
Bottom part of the leaf blade
Leaf margin
Outer edge of the leaf blade
Monocotyledon
Plant with an embryo that has one seed leaf.
Morphology
Study of the form and structure of plants and other living organisms.
Nomenclature
Scientific naming system for living organisms.
Opposite
Pertaining to leaf or branch arrangement, leaves or branches situated two at each node, across from each other on the stem.
Order
Taxonomic group below the class level but above the family level.
Palmate
Type of compound leaf with veins or leaflets radiating in a fanlike pattern.
Phylum
Primary taxonomic group within a kingdom
Pinnate
Type of compound leaf, with leaflets along each side of a common axis.
Serrate
Sawtooth margin of a leaf, with teeth pointed forward
Simple leaf
Single bladed leaf not composed of leaflets
Species
Taxonomic group of organisms composed of individuals of the same genus that can reproduce among themselves and have similar offspring
Specific epithet
Classification name that follows the genus name in scientific nomenclature
Subspecies
Group of plants within a species having distinct differences that occur naturally and usually within a specific geographic region
Taxonomy
Science that studies the description, denomination, and classification of living organisms based on their similarities and differences
Variety
Naturally occurring subdivision of a species having a distinct difference and breeding true to that difference
Vascular plant
Plant with xylem and phloem elements for conducting water, nutrients and Photosynthates.
Kingdom, phylum, class, order, family, genus, specific epithet
List the levels of classification in order of broadest to narrowest
