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Vocab List Plant Tax
Vocabulary list Plant Taxonomy BIOL 301
89
Plant Sciences
Undergraduate 4
12/07/2014

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Term
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Definition
Acaulescent - A plant with no apparent stem
Term
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Definition
Achene - a dry, 1-seeded, indehiscent fruit.
Term
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Definition
Acicular - slender or needle shaped.
Term
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Definition
Actinomorphic -  radially symmetrical; may be bisected into similar halves in at least two planes.
Term
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Definition
Acuminate - Tapering gradually to a point.
Term
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Acute - Sharply pointed; Converging edges making an angle less than 90 degrees.
Term
Adherent
Definition
Having usually separate parts united ; adnate
Term
Adnate
Definition
Fusion of unlike structures
Term
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Definition
Adventitious - Buds or roots that develp without pattern or in an abnormal position.
Term
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Definition
Aggregate - Crowded into a cluster; a number of separate fruits from a single flower.
Term
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Definition
Alternate - one leaf per node - or - when something occurs between something else, for example stamens alternating with petals
Term
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Definition
Androecium - male parts of a flower
Term
Annual
Definition
A plant that completes its life cycle and dies in one year or one season.
Term
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Definition
Anther - the pollen bearing part of the stamen.
Term
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Definition
Apical - of or refering to the tip
Term
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Appressed - pressed closely against, but not fused.
Term
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Definition
Arborescent - Tree like in growth or appearance.
Term
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Definition
Aristate - With a stiff, bristle-like awn or appendage.
Term
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Attenuate - Elongate, narrowing gradually, usually refering to a base.
Term
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Definition
Auriculate - Ear-lobed shaped.
Term
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Definition
Axillary - of or arrising from the axil, between a leaf/petiole and the stem.
Term
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Definition
Basal - At the base ; situated or attached at the base
Term
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Definition
Beard - A group of long awns or bristle-like trichomes; a zone of pubescence.
Term
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Definition

Berry - 

an indehiscent fruit, with the seeds immersed in the pulp, for instance tomato.

Term
Biennial
Definition
plant which completes its life cycle and dies within the second year
Term
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Definition

Bilabiate 

having two lips; e.g. the form of the petals in many irregular flowers.
Term
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Definition

Blade 

flattened part of a leaf, excluding the stalk or petiole. 

Term
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Definition

Bract - 

modified leaf associated with flower or inflorescence, differing in shape, size or colour from other leaves (and without an axillary bud).
Term
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Definition
Bracteole - A small bract.
Term
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Definition

Bristle - 

Stiff, strong but slender hair or trichome. 

Term
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Definition
Bud - A aggregation of undeveloped leaves or flowers, or both, often enclosed by scales.
Term
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Definition

Bulb

A short, underground stem surrounded by fleshy leaves or scales. 

Term
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Definition
Caducous - early deciduous ; falling off easily or at an early stage.
Term
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Definition
The outer whorl of the flower ; the sepals collectively.
Term
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Definition
Campanulate - Bell - shaped.
Term
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Definition
Canescent - Grey to whitish pubescence.
Term
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Definition
Capitate - Head or head-like.
Term
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Definition

Capsule - 

a dry fruit formed from two of more united carpels and dehiscing when ripe

Term
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Definition

Carpellate - 

Flowers having one or more carpels or members of a compound pistil ; a simple pistil.

Term
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Definition

Catkin

A scaly-bracted, usually fexuous spike or spike-like inflorescence of cymules; ament, as in the betulaceae. 

Term
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Definition

Caulescent

With an evident, above-ground stem. 

Term
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Definition
Cauline - borne on a stem.
Term
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Definition

Cespitose - forming mats

growing in dense tufts or clumps. 

Term
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Definition
Ciliate - With hairs arranged on the edge of a flattened structure such as a leaf, petal or samara.
Term
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Definition
Circinate - Rolled up with tip in the center.
Term
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Definition
Clambering - climbing clumsily.
Term
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Definition
Clasping - The base partly or wholly surrounding another structure as some leaves clasp stems.
Term
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Definition
Claw - the narrow, petiole like base, of some petals and sepals.
Term
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Definition
Cleft - Any deep lobe or cut.
Term
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Definition

Colonial - a group of plants with a clonal relationship where all plants are from one rootstock, rhizome, stolon, or root system. 

 

Term
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Definition
Comose - bearing a tuft of soft hairs
Term
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Definition

Cone

A globose or clindrical spiral aggreegation of sporophylls, bracts, or scales. 

Term
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Definition

Connate 

The fusion of similar parts 

Term
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Definition
Cordate - Heart-shaped.
Term
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Definition
Coriaceous - with a leathery texture.
Term
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Definition
Corm - a bulb-like structure in which the fleshy portion is pre-dominately stem tisssue covered by membranous scales.
Term
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Definition
Corymb - Short, broad, more or less flat-topped indeterminate inflorescence, the outer flowers opening first. Arising from different places along stem.
Term
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Definition
Crenat - rounded teeth.
Term
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Definition

Cyme -

inflorescence in which the main axis and all lateral branches end in a flower with innermost flowering first. 

Term
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Definition
deciduous
Term
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Definition
Decumbent - Reclining or lying on the ground, but with the end ascending.
Term
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Definition
Decurrent - when the leaf blade continues along the petiole or stem.
Term
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Definition
Deltoid - triangular in shape.
Term
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Definition

Dentate - toothed

Denticulate - finely toothed

Term
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Definition
Dichotomous - equally forked
Term
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Definition
Diffuse - Loosely branching or spreading; of open growth
Term
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Definition
Dimorphic - occuring in two different forms.
Term
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Definition
Dissected - deeply divided ; cut into many segments
Term
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Definition
Distichous - two-ranked, on opposite sides of the stem in the same plane
Term
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Definition
Distinct - seperate or free, not united
Term
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Definition
Divergent - spreading  in different dirrections, usually upward
Term
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Definition
Doubly serrate - Serrations within serrations.
Term
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Definition
Drupe - A fleshy, usually 1-seeded indehiscent fruit with seed enclosed in a stony endocarp.
Term
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Definition
Elliptic - Being narrowed to relatively rounded ends and widest at or about the middle, 2 dimensional, essentially laminate.
Term
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Definition
Emarginate - having a notch at the center of the apex.
Term
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Definition
Endocarp - the inner most layer of the fruit wall.
Term
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Definition
Entire - A margin without teeth, lobes or divisions.
Term
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Definition
Epigynous - borne on the ovary; describes floral parts when attached above the level of the ovary and arising from tissue fused to the ovary wall
Term
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Definition
Epipetalous - of stamens that are attached to the petals.
Term
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Definition
Equitant - Distichous, the bases overlapping, as the leaves of Iris.
Term
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Definition
Exserted - Projecting out of, beyond.
Term
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Definition
Exindusiate - Sori without indusium.
Term
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Definition

#7 

 

Exocarp - The outer layer of the pericarp- the outer fruit wall. 

Term
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Definition
Falcate - curved like a sickle.
Term
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Definition
Fascicle - A bundle or close cluster
Term
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Definition
Fibrous - Of or resembling fibers.
Term
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Definition
Filament - any thread-like structure; the stalk of the stamen, terminated by the anther.
Term
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Definition
Filiform - Thread-like, slender and usually terete in cross section.
Term
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Definition
Fleshy - Succulent or pulpy.
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