- Acicular - Needlelike.
- Angisperm - Means 'enclosed seeds' and identifies
trees usually known as hardwoods.
- Bract - A thin leaf-like structure often extending
past the cone scale on conifers.
- Clinometer - a clinometer, or device for measuring
vertical angles.
- Cone - Seed bearing structure of certain gymnosperms.
- Conifer - A gymnosperm which bears cones.
- Cultivar (cultivated variety) - A unique form or
type propagated and maintained for specific purposes.
- Deciduous - Characteristic of leaves dropping in
the fall.
- Dioecious - Having only one sex per plant.
- Drupe - A simple fleshy fruit which often has only
one seed.
- Evergreen - Characteristic of retaining at least
some leaves through the fall and winter.
- Fascicle - A cluster or bundle, usually referring
to groups of needles in certain pines.
- Flower - Reproductive structure of a plant.
- Fruit - Seed bearing part of a plant.
- Gymnosperm - Means 'naked seeds' and identifies trees
usually known as softwoods or evergreens. Christmas trees are nearly
always gymnosperms.
- Habit - Shape or form of a plant.
- Habitat - Location where a plant lives.
- Hybrid - Cross between two plants, usually indicates
between two species.
- Leaf - Plant structure which is the primary location
for photosynthesis. Long slender leaves are often referred to as needles.
- Monecious - Plant with both sexes on the same individual.
- Morphology - Dealing with form and structure.
- Needles - Long, slender leaves typical of many gymnosperms.
- Nomenclature - Naming of an organism.
- Phloem - Conducting tissue for products of photosynthesis.
- Pollination - Transfer of pollen from the male to
the female.
- Scale - Small , suppressed leaf as found in junipers,
or the individual unit of a cone under which the seeds may be found.
- Species - Taxonomic classification below genus. Also
a group of individuals considered set apart from other species by consistent
differences in morphology, ecology or reproductive behavior.
- Sterigmata - Small, peg-like structures on which
the individual needles of some species can be found.
- Strobili - A reproductive structure of conifers and
certain other plants. Consists of organs of one or both sexes. 'Strobilus'
is the singular form of the word.
- Taxonomic - Dealing with the description, classification
and naming of organisms.
- Variety - Taxonomic classification below the level
of species, which indicates morphological or genetic differences.
- Xylem
- Conducting tissue of plants involved in transport of water and nutrients
upward in the tree.
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