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Glossary

This glossary is intended to define the botanical terms that may be used in the catalog. It is usually easier to use these words than to rely on a long string of common words to describe a particular condition. There may be a pop quiz on these.

Adpressed

Flattened against the stem, branch or leaf.

Apex

The uppermost point.

Appressed

The same as adpressed.

Basal

At or very near the base.

Bi-lobed

Having two lobes.

Bristles

Stiff hairs.

Bulbils

Small bulbs or plantlets usually above ground.

Bulbous

Bulblike.

C.F.

Compares favorably. Botanist code for “I’m not sure”!

Caudex

The combined thickened stem and root.

Caudiciform

Having a caudex.

Cephalium

A wooly outgrowth at the apex of the stem of some Cactaceae, on which the flowers are borne.

Cholla

A common name given to rounded stemmed Opuntias

Clones

Genetically identical.

Globose

Spherical or nearly so.

Dehiscence

The opening of an anther or fruit along a regular line(s) of cleavage.

Distichously

In two rows; in two vertical ranks.

Euphorb

A common name used for plants in the family EUPHORBIACEAE.

Exfoliating

Separating in flakes or plates, as often the outer bark.

Filiferous

Bearing threads, as sometimes the leaf margin.

Genus

A group of related species; below family.

Glaucous

A light bluish-grey color.

Habitat

The kind of situation in which a plant grows, as woods, meadows, desert, etc.

Inflorescence

The group of flowers named collectively; their arrangement on the stem.

Interspecific cross

A hybrid between two species of the same genus.

Keel

A central, dorsal ridge like the keel of a boat.

Lateral

At the side, not central or terminal.

Lobe

A usually more or less rounded projection of a deeply indented leaf.

Madusa head

Numerous branches radiating from a central stem.

Mesembs

A common name applied to plants in the genus Aizoaceae (formerly Mesembryanthemaceae).

Monotypic

A genus with only one species.

Nomenclature

Name designation, the standardized new Latin names used in Biology.

Ovoid

Egg shaped.

Palmate

Lobed or veined outwardly from the base, like fingers of a hand.

Pedicel

The stalk of a flower.

Serrate

Serrate Saw-edged, with sharp teeth.

Prickly pear

A common name given to the flat padded Opuntias.

Prostrate

Flat on the ground.

Rosette

A cluster of basal leaves, symmetrically arranged.

Semi-bi-lobed

Partly having two lobes.

Semi-cylindrical

Nearly circular in cross section.

Stapeliad

A common name used when speaking about plants of the family Asclepidaceae.

Succulent

Fleshy, thick and juicy.

Regular, capable of division into two like parts.

Regular, capable of division into two like parts.

Synonymy

Old names for the same plant.

Tomentose

Covered with densely matted hairs.

Tomentum

Fine, densely matted hair, like wool

Tubercles

Small knoblike projections.

Tuberous

Thickened, usually referring to roots.

Turgid

Not flat; swollen or distended.

Variegated

Having discrete markings of different colors.

Venation

The system of veins.