Abscisic
acid (ABA) - Plant hormone involved in growth
inhibition, dormancy, and stress toleration.
Acidic
- Description of a substance that has a high concentration of hydrogen
ions.
Acid
soil - Type of soil common to areas with
sandy soil , an abundance of organic matter, and heavy rainfall. The pH
is below 7. Overly acidic soil is harmful to plants, but slightly acidic soil
can be beneficial to plants.
Adventitious
root - A general term used to describe any root
that grows in an unusual orientation or location; examples include above ground
roots.
Aerial
rootlets - small hairlike roots located on the
stalk of some vines, such as ivy, adapted to clinging for support.
Agar
- a gelatinous substance used for sterile propagation
of plants most often orchids.
Aggregate
fruit - Fruit that results from a single flower with many separate
carpels. An example is the blackberry.
Air
Layering - A type of layering used on branches
of tall plants. A slanting cut in the bark is made below
the node. Rooting hormone is
applied to the cut. Damp sphagnum moss is packed into
the cut and then plastic is wrapped around to secure the moss and protect
the cut from the elements. Roots will form in the moss after a few months
after which the branch can be cut and planted in its own pot.
Alkaline
- A substance that has a low concentration of Hydrogen
ions and conversely has a high concentration of Hydroxyl
ions.
Alkaline
soil - A type of soil that commonly occurs
in regions with light rainfall and has high levels of calcium
carbonate. The pH is above 7. Overly alkaline soil is
harmful to plants, but slightly alkaline soil can be beneficial to plants.
Allele
- An alternative form of a gene. For example blue eye
color versus green eye color.
Alternate
leaves - Leaves that develop from different nodes
and on opposite sides of the stem from each other.
Anaerobic
- Refers to the processes of metabolism done with
out oxygen. This usually results in fermentation.
Angiosperm
- Flowering plant that forms seeds within the protected ovary.
This describes fruiting plants.
Annual
- Plant which completes its life cycle, from germination,
to flowering, to seed production, in a single year or less. Examples include
grains, beans, and many wildflowers.
Anther
- Male reproductive part of an angiosperm. Specifically,
the terminal pollen sac of the stamen
where male gametes in the form of pollen
grains are produced.
Antheridium
- A moist chamber in which male gametes are produced
in plants.
Apical
dominance - A phenomenon whereby a plant's growth is concentrated
on the terminal bud, allowing it to grow taller,
thereby increasing its exposure to sunlight.
Apical
meristem - Meristems located at the terminal
shoot of a plant, the points at which upward growth happens.
Apoplast
- A route of transport within a plant consisting of the extra cellular space
made up of cell walls.
Archegonium
- The female equivalent of the Antheridium.
Asexual
Reproduction - Reproduction by one sex via budding, fission, etc.
resultant in genetically identical offspring.
Atom
- A unit of matter consisting of electrons, protons,
neutrons, and other subatomic particles.
Atomic
number - The number of protons within an atom's
nucleus. The number of protons in a normal atom
is always equal to the number of neutrons.
Atomic
weight - The total mass of an atom is comprised of the masses of
electrons, protons, neutrons,
and subatomic particles.
ATP
- Adenosine Triphosphate, a molecule that when undergone
a dephosphorylation reaction (a loss of a phosphate)
releases energy which can be used by cells.
Autosome
- A chromosome that is not directly involved in
determining sex.
Autotroph
- Organisms that obtains food/energy by not eating other organisms. For example
autotrophs use energy from the sun or obtain energy from inorganic substances.
Plants are autotrophs, specifically photoautotrophs.
Auxins
- Plant hormones that have a variety of effects on
the cellular responses of plants. For example development of leaves and fruit,
also formation of secondary growth.
Axil
- The angle between the stem and leaf, in which the axillary
bud is formed.
Axillary
bud - An embryonic side shoot. A point on a stem,
at the node, and between the stem
and leaf, where a new shoot can develop. Growth is usually
inhibited at these buds. Axillary buds have the potential to give rise to
either shoots bearing flowers, or to a vegetative
branch which includes its own terminal bud.
Backflow
preventer - A device used in irrigation systems
to prevent back flow of water.
Balled-&-Burlapped
(b & b) - Term used to describe how generally how plants come
from a nursery with the root ball wrapped in burlap.
Biosphere
- The portion of earth that is inhabited by life forms.
Biotic
- Referring to things which have life.
Bipinnate
- A type of leaf structure that is divided twice.
Blanching
- The process of blocking light from certain types of vegetables
in order to prevent coloration and keep mild flavors.
Bonsai
- Literally meaning tray planting. The Japanese art of dwarfing plants.
Bracts
- Leaves that grow just below a flower. Bracts are modified
and usually green, but are sometimes colorful and mistaken for petals.
Broad
leafed - Refers
to plants that have foliage year round, but are not conifers.
Also refers to any weed that is not a grass.
Bud
- An undeveloped or rudimentary organ or shoot of a plant.
Budding
- A type of propagation in which the bud
is inserted underneath the bark of a related plant.
Bud
union - The place
at which the bud/shoot joins the root
stalk.
Bulb
- In general any structure underground from which a plant can grow. A true
bulb is an underground structure that contains an embryonic plant protected
by scales. An example of a true bulb is an iris.
C3
plant - Plants whereby the first organic product of carbon-fixation
(during the Calivin cycle) is a three-carbon compound.
This category includes the vast majority of common plant species.
C4
plant - Plants whereby the first oragnic product of carbon-fixation
is a four-carbon compund, which is formed prior to the Calvin
cycle. This adaptation is advantageous in hot regions with intense sunlight
as it minimizes photorespiration and maximizes sugar production. Sugarcane
is an example of this type of plant.
Calcium
- (Ca), a common element playing a fundamental role in cell formation and
cell growth.
Calvin
cycle - The second of the two major steps of photosynthesis
(the other being the light reactions). The cycle fixes CO2
and produces carbohydrates.
Calyx
Cambium
CAM
plant - Standing for crassulacean acid metabolism, this is a type
of plant that employs an alternative photosynthesis
pathway where CO2 enters the open stomata of the leaf
during the night, allowing the stomata to close during the day to reduce water
loss. This adaptation is usefull in very hot, arid climates. The pineapple
is an example of this type of plant.
Cane
Cane
pruning
Carotenoids
- Yellow and orange pigments that complement the green pigments of chlorophyll
by abosrbing wavelengths of light that chloropyhll can not.
Carpel
- The female reproductive organ of a flower. The carpel consists of the ovary,
stigma, and style.
Casparian
strip - A ring of wax surrounding endodermal cells which blocks the
passive flow of water and minerals into the stele.
Catabolic
pathway - A type of metabolic pathway whereby large, complex molecules
are broken down into smaller ones in order to release energy.
Catkin
Cell
cycle - The complete sequence of events of a dividing cell.
Cell
wall - A protective layer formed outside of the plasma membrane in
plant cells.
Cellulose
- A structural polysaccharide in cell walls.
Celsius
- A temperature measurement scale. Water freezes at 0°C, water boils at
100°C. °C= (5/9)(°F-32)
Chaparral
- A type of biome characterized by evergreen shrubs,
rainy winters, long dry summers, and cycles of fire burnoff.
Chemiosmosis
- A term used to describe the ability of a membrane to use energy to pump
hydrogen ions and then harness the hydrogen ion gradient to carry out cellular
functions, most importantly, the production of ATP's.
Chemoautotroph
- A type of organism that needs CO2 for their carbon
source, but obtains energy from inorganic molecules.
Chemoheterotroph
- A type of organism that must consume organic molecules for their carbon
source and to obtain energy.
Chloroplast
- The organelle in plants and some protists that absorbs sunlight and uses
the enery to synthesis organic compunds from CO2 and
H2O.
Chlorosis
- A plant disorder commonly caused by a deficiency in iron which results in
the yellowing of leaves (except for the veins). High alkaline soils can hinder
a plant's ability to uptake iron, so there may not be a problem with the iron
content of the soil itself.
Chromista
- A sometimes recognized Kingdom that includes brown algae, golden algae,
and diatoms.
Chromosome
- An association of genes contained in the nucleus of
eukaryotic cells.
Class
- The third largest of the seven major taxonomic
groups.
Clay
Soil- The heaviest soil classification, composed of closely
packed particles that allow less water and air movement through the soil.
Clay soils cool slowly, warm slowly, and can hold large volumes of nutrients.
Cleft
Grafting
Clinging
Vines
Collenchyma
cell - A flexible type of plant cell that supports new growth without
restraining further growth.
Commensalism
- A relationship between organisms whereby one of them benefits while the
other is neither helped nor hurt.
Community
Companion
cell
Complete
flower
Composite
head
Compound
leaf
Compression
fitting
Conifer
Cork
Cork
cambium
Corm
- Often lumped as a bulb, and like a true bulb is an underground
stem base, but is solid tissue rather than groups of scales.
An example of a corm is freesia.
Cutting
- Any part of a plant that is cut off from the parent plant and rooted
to form a new plant. Types include: root cuttings, leaf cuttings, and stem
cuttings.
Day-neutral
plant - plants whose flowering is unaffected by photoperiod.
Deadhead
- Take off dead flowers. This is done to prolong plant life in annuals
by preventing seed formation via flowering.
Deciduous
- A type of plant that loses its leaves yearly.
Defoliation
- the loss of foliage due to unnatural causes, such as chemicals, frost, or
high winds.
Dermal
tissue system - The protective
covering of plants. In juvenile plants it is composed of a single layer of
epidermal cells.
Determinate
growth - a type of growth in which the organism stops growing after reaching
the optimum size for that species.
Dibbles
- A tool used to plant bulbs and other small plant by
poking holes in the soil.
Dicot
- One of two main division of flowering plants (the other being monocots),
characterized by having two cotyledons (seed leaves);
examples include most fruiting and flowering trees, and most annual
and perennial flowering plants.
Dieback
- As a result of a lack of water, nutrients, or other stresses the stems
of plants die.
Dioecious
- A plant having male and female flowers on separate individuals.
Division
- Refers to the process of propagatingperennials.
Generally after 3 years a perennial is a well developed
and can be divided by digging it up and splitting root
ball. Often times the root ball will split naturally
without much force into smaller plants that can be planted on their own.
Dormancy
- A period in which plants "go to sleep" or slow down their metabolic
processes.
Double
flowers - A form
of flower in which there are several rows each with many petals.
An example is the rose.
Drainage
- The act of draining water through the soil. Sandy
soil has better drainage (loses water faster) than does clay
soil (loses water slower).
Drip
Emitters - Part
used in drip irrigation systems in order to deliver
water as a drip.
Drip
Irrigation - A system
of irrigation using small diameter hoses to deliver
water at slow rates (i.e. drips). Useful in watering small areas (e.g. flower
beds, potted plants, hanging baskets, etc.)
Electron
- A component of an atom containing a negative charge
which orbits around the nucleus.
Electron
Transport chain
- A system located in the inner membrane of the mitichondrion and in the thylakoid
membranes of chloroplasts that produces energy
in the form of ATP via a slide of electrons
down a gradient.
Emitter
Line - A part used
in drip irrigation systems to deliver or emit water
to plants along the hose line.
Endodermis
- In plant roots the inner layer of the cortex
and forms a one cell thick boundary between the cortex
and the stele.
Epidermis
- The outer most layer of cells in an organism. In plants the epidermis consists
of the dermal tissue system.
Epiphyte
- A plant which grows on another plant, but does not harm that plant.
Espalier
- A plant, typically a tree or shrub, that has been trained to grow in a flattened
pattern with the help or wires, trellis, or a fence.
Ethylene
- A plant hormone most noteable involved in fruit ripening,
but also involved in aging, growth inhibition, and leaf abscission. Ethylene
is a gaseous hormone.
Eukaryote
- An organism with a membrane bound nucleus and organelles.
Evergreen
- Plants that maintain their foliage yearround as opposed to decidious
plants.
F1
generation - The first generation of a genetic cross.
F2 generation
- The offspring resulting from the interbreeding of individuals in the F1
generation.
Family
- The fifth largest of the seven main taxonomic divisions.
Fertilization
Fertilizer
Fiber
Fibrous root
- Root system consisting of many small roots, often forming a mat which spreads
out vertically and laterally in the soil. Fibrous roots do not usually penetrate
very deeply in the soil. This type of system is often characteristic of monocots.
Filament
Filter
Flower
Flower forms
Forcing
Foundation
plant
Frond
Fruit
- The mature ovary of a plant that serves to both protect and enourage the
dispersal of seeds.
Fungus
Gamete
Gametophyte
Gene
Genotype- The genetic
makeup of an organism.
Genus- The sixth
largest of the seven main taxonomic groups. For example
Passiflora is the genus given to the passion fruits. By convention,
the genus is always capitalized.
Germination
Gibberellins
Girdling
Goof plugs
Grafting
Granum
Gravitropism
Greenhouse effect- A process
by which temperatures are warmed due to the accumulation of gases in an atmosphere
which prevent the escape of absorbed infared radiation from the sun.
Ground Layering
Ground meristem
Ground tissue
Growing season
Guard cell
Guttation
Gymnosperm- A type of
plant that bears seeds not enclosed by any type of specialized structure.
Conifers are examples of gymnosperms.
Gypsum
Half-Moon Edger
Hand Tools
Harden off
Hardpan
Hardy
Heading
Hedge Shears
Herb - a plant
used for seasoning, medicinal, aromatic or general household uses. Includes
both perennials and annuals.
Indeterminate
growth - A type of growth in which a plant (or other organism) continues
to grow throughout its life, until death.
Inflorescence
- A group of individual flowers that are borne on a single stem.
Internode
- Area of a stem between nodes.
Irrigation
- A system designed to deliver water to plants.
Kingdom
- The largest main taxonomic
division.
Latent bud
Lateral bud
Lateral meristem
- Meristem located on the lateral portion of a plant, a point at which secondary
growth may occur.
Lath
Layering
- Propagation method whereby roots are encouraged to form from branches of
a plant. After roots are established, the branch is cut off and planted by
itself.
Leaf mold
- Partially decomposed leaves that are used in soils for the addition of organic
nutrients.
Leaf scar
Light reactions
- The first of two main steps in photosynthesis
where solar energy is converted into chemical energy.
Lignin
- Hard material is cellulose plant cell walls used for support in terrestrial
plants.
Lime
Lipl
Loam
Locus
- An area on a chromosome where a particular gene is located.
Long day plant
- A plant that flowers only when daily sunlight hours surpass some critical
level.
Loppers
Malathion
- Synthetic pesticide used to control a wide range of biological pests.
Manure
Meiosis
Meristem
- Embryonic tissue in plant, which allows for indeterminate growth.
Mesophyll
Metabolism
Microclimate
- The climate of a very small area. For example, a single backyard can be
considered a microclimate.
Microspray
Middle
lamella
Mitosis
Mold
Mole
- The number of grams of a substance that equals its molecular weight in Daltons.
For example, carbon has a molecular weight of about 12, thus 1 mole of carbon
equals approximately 12 grams; water has a molecular weight of about 18, so
1 mole of water equals approximately 18 grams.
Molecule
Monocot
- One of two main divisions of flowering plants (the other being dicots),
characterized by having a single cotyledon (seed
leaf); examples include grasses, orchids, bamboos, and palms.
Monoecious
- A plant having both male and female flowers on the same individual plant.
Mulch
Multiple
fruit
Mushroom
Naturalize
Neutron
Nitrogen
(N) - chemical used by plants to synthesize proteins, enzymes, and
chlorophylls. When a plant is not able to get enough nitrogen, leaves
tend to yellow from the bottom of the plant upwards, and from the leaf tip
to the stem.
Node
- Point at which a leaf is attached to a stem.
Nucleotide
Nucleus
Offset- A young plant,
developing as a vegetative offshoot from the parent plant.
Open-pollinated
plant-
A horticultural term used to describe cultivars of a plant that are bred through
natural, random pollination.
Opposite
leaves-
Type of leaf growth where leaves spring up from the same node,
but on opposite sides of the stem.
Orchid
Order- The fourth
largest of the seven major taxonomic groups.
Organic
matter-
Any material that originates from a living organism.
Ovary
Ovule
Oxygen
(O)
Palmate
leaf -
Panicle
Parenchyma
- Area of plant that performs most of the metabolic functions of the plant.
These cells are the least specialized of all plant cells.
Pathogen
Peat
Peat
Moss
Perennial
- Plant which lives many years. Examples include trees, shrubs, and some grasses.
Pericycle
- Cell layer in root which lies inside the endodermis. Can become meristematic.
Periderm
- Protective coating formed in secondary growth from cork in cork cambium
replacing the epidermis.
Petiole
- Portion of the leaf which joins the leaf to the node of a stem.
Petal
pH
- A measure of acidity and basicity. A pH of 7 is defined as neutral. Lower
pH values (e.g. 3-4) correspond with a greater acidity. Higher pH values (e.g.
9-10) correspond with a higher alkalinity (or basicity).
Phenotype
Phloem
- One of two types of vascular tissue (the other being xylem),
which transports nutrients produced in the leaves downwards to the root system,
as well as to nonphotosynthetic portions of the shoot system.
Phosphate
Phosphorous
(P) - chemical involved in flowering, fruiting, root growth, and
energy transfer throughout the plant. Plants short in phosphorous will show
stunted growth.
Photoautotroph
- An organism which uses light energy to synthesize organic compounds from
CO2.
Photoperiodism
- Physiological response due to length of light exposure.
Photophosphorylation
- Generation of ATP via photosynthesis.
Photorespiration
- Metabolic pathway that uses oxygen and produces CO2.
Photosynthesis
Photosystem
Phototropism
Phylum
Phytochrome
Pinching
Pinnate
leaf
Pistal
Pith
Pleaching
Plasmodesmata
- Open channel in cell wall in plants which allows for connections to adjacent
cells.
Pollarding
Pollen
Pollenizer
Pollen
Sac
Pollinate
Pollinator
Potassium
(K) - chemical involved in regulation of protein synthesis and starch
production in plants. Plants short in potassium may show stunted growth, weak
stems and root systems, and/or spotted and curled leaves.
Pressure
Regulator
Primary
growth - A type of growth whereby a plant grows in length. Examples
include the growth of roots and shoots.
Procambium
- A primary meristem of roots and shoots that forms the vascular tissue.
Prokaryote
Propagation
Protoderm
- Gives rise to epidermis of roots and shoots. The outer most primary meristem.
Protoplast
- All the contents of a cell inside the cell wall.
Pruner
Pruning
Pseudobulb
Punch
Pyrethrins
- A class of chemicals found in many insecticides. They are a contact and
a stomach poison which are lethal to most insects. They break down quickly
in sunlight. Derived from the flowers of Tanacetum cinerarifolium (pyrethrum-related
to the tansy and feverfew.)
Quiescent
center - A region of
cell division in plant roots containing slowly dividing
meristematic cells.
Raceme
Radical
Rake
Reaction
center
Receptacle
Rhizome
- A thickened stem growing underground. For example, bearded iris.
Ribonucleic
acid
Root
Root
ball
Root
bound
Root
cap - The tip of a root containing cells which
protect the growing meristem. The root cap also secretes
a substance that acts as lubrication so the growing root tip can maneuver
through the soil.
Root
hairs - Tiny root structures, often microscopic
which grow out from roots, providing the plant a vastly
increased surface area to capture water and minerals from the soil.
Rooting
Hormone
Root
irrigators
Root
pressure - Upward water pressure in roots where
water is pushed up the stele by the pumping of minerals
into the xylem.
Rootstock
Rosette
Runner
- A modified stem structure growing horizontally. A common
example is the strawberry.
Salty
soil - Soil which has high concentrations
of salt. Found in coastal and arid regions. The abudance of salt in the soil
causes water loss from plants via the root system have
a detrimental effect on the plants ability to uptake mositure and nutrients
into the plant system. Subsets of salty soils are saline
soils and sodic soil.
Saline
Soil - A subset of salty soil which contains
large quantities of soluble salt compounds such as sodium,
calcium, chloride, etc.
Sandy
Soil - A type of soil with excellent drainage
due to its characteristic large grains of sand.
Savannah
- Tropical grassland biome characterized by scrubland,
trees, grazing mammals, and a seasonal cycle of rainy and dry seasons.
Saw
- A tool with sharp teeth used for pruning trees and
shrubs.
Scarify
- To make an incision in a hard seed coat to induce germination.
Scion
- A shoot or sucker growing from
a mature plant, generally used for grafting purpose.
Sclereid
- An irregular sclerenchyma cell found in the parenchyma
of some plants, in nutshells, and seed coats.
Sclerenchyma
cell - A plant cell that provides rigid support. Characteristic thick
secondary cell walls that contain lignin, a strenthener
at maturity. There are two types of sclerenchyma cells: sclereid
and fibers.
Scramblers
- A type of vine that does not have any adapted features to help secure itself.
This type of vine needs to be staked or tied to a support.
Secondary
growth - A type of growth whereby a woody plant
grows in width.
Seed
- An adapted feature of terrestial plants in which an embryo
with food is stored and a protected casing.
Self
seed - Referring
to a plant that regenerates itself by dropping its own seeds.
Characteristics of annuals. Synonym of self
sow.
Soil
- Soil is made up of many different organic materials, minerals, and other
nutrients. There are many types of soils such as: sandy,
loam, clay, alkaline,
acidic, and salty.
Soil
soakers - Used in
irrigation systems, a perforated tube that allows large amount of water to
be distributed to plants.
Soil
solarization - The
process of covering soil with plastic to trap heat underneath
and kill off weeds.
Spade
- A tool used to prepare soil. Has a narrower, shorter and flatter blade than
a shovel.
Spading
Fork - A tool often
used in clay soils, it helps to break up large dirt clods.
Species
- A group within a genus, that shares various characteristics
and has the ability to interbreed and form viable offspring.
Sphagnum
moss - A type of
moss found in bogs and used commercially to line hanging baskets. It is also
used to make up peat moss.
Spike
- A type of inflorescence in which the flowers are
attached directly to the stem without a stalk.
Spore
- A simple reproductive cell that is capable of producing a new plant.
Stele
- The central vascular tube in roots which includes the
xylem and phloem.
Stem
- The general term used for the main stalk of a plant to which branches and
leaves attach.
Stigma
- Located at the tip of the carpel it is where pollen
is received.
Stolon
- Modified stems that grow along the top of the soil,
occasionally taking root and forming a new plant. Strawberry
is an example.
Stoma
- Located in the epidermis of plants stoma allow
gas exchange between the plant and the environment.
Strain
- Another classification that refers to plants, usually annuals,
that have similar growth characteristics but don't necessarily look alike.
Stress
- Any factor that potentally hinders an organisms development and life cycle.
Stroma
- The fluid filled area outside of the thylakoid
involved in synthesizing organic molecules from carbon
dioxide and water.
Style
- A part of a carpel in a flower. The thin tube that
leads form the stigma to the ovary.
Subshrub
- A low lying plant that has woody stems.
Subspecies
- A subclass of the genus that groups members by their
geographical location or other descriptive variation. Also known as a variety.
Sucker
- Growth that occurs from the root stock rather than
from the grafted region. For example, non-disease resistant
roses are often grafted to a disease resistant root
stock. Without proper maintenance suckers will grow from the root
stock.
Suction
disks - A type of
attachment adaptation on certain types of vines.
Sulfur
(S) - Often used
as a control for powdery mildew and rust. It is also a nutrient for plants
that acts with nitrogen to produce protoplasm
in plant cells.
Taproot
- Large, vertical root with many smaller lateral roots. Taproots usually go
deep into the soil and provide the plant a strong anchor. Taproots are characteristic
of many dicots.
Taxonomic
Temperate
Deciduous Forest
Tender
Tendril Vines
Terminal
bud - The "tip" or "end" of a stem, usually where
new plant growth is concentrated. Also see axillary bud.
Thigmomorphogenesis
Thigmotropism
Thinning
Thylakoid
Tonoplast
Topiary
Tracheid
Transpiration
Tropical Rain
Forest
Tropism
Trowel
Truss
Tuber
- Swollen ends of rhizomes specialized for storing
food. For example, the potato.
Tuberous
root - A thickened
true root used to store nutrients. An example is dahlia.
Tubing
Tundra
Turgid
Turgor Pressure
Twining Vines
Umbrel
- A type of inflorescence in which all of the
individual flowers arise from the same point. For example, the flowers of
Yarrow.
Underplanting
-Planting plants beneath other plants. For example planting ground cover plants
beneath a tree.
Vascular
tissue - Tissue formed
into tubes within a plant that transports water and nutrients throughout the
plant.
Vascular
tissue system - The system
formed from xylem and phloem to
transport water and nutrients throughout the plant.
Variegation
- The presence of another color other than the main color on the leaf,
stem, or petal of a plant. For example,
green with white stripes on leaves, or green leaves with white edging on ivy.
Variety
- A variation of a species
of a plant. For example, dwarf variety of a plant.
Water
sprout - Also known as
a sucker, a vertical shoot growing from the main trunk
or branches.
Weed
- Any unwanted plant in a garden or wildlands. Typically pests that regenerate
themselves. For example, dandelions, scarlet pimpernel, etc. Weeds can provide
beneficial nutrients to the soil.
