Glossary

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Glossary

Achene : A dry, one-seeded fruit that does not split open; common in the sunflower and buttercut plant families.

Axil : The angle formed between two attached plant parts, e.g. leaves on the main stem.

Bale : A large, bound package of raw material. (A cotton bale weighs 480 pounds.)

composites : def here.

Coffee : Coffea arabica.

Disk flowers : The tiny tubular flowers at the center of the flower-head in members of the sunflower plant family. Often surrounded by ray flowers.

Epidermis : The outer layer of cells or skin of various plant parts.

Generic name : The genus name, always capitalized. It should be italicized, but sometimes is not when it appears without the species name. The generic name is frequently abbreviated to a single letter, as in "H. annus.."

Ovule : The basil part of the flower which contains the seeds.

Perennial : A plant that lives for more than two years.

Ray flowers : The petal-like flowers on the outside of the flower-head in many species of the sunflower plant family.

Species : the smallest taxonomic unit defining a group of animals or plants that are unable to breed to produce fertile offspring.

Sunflower : Heliathus annus, important food and dye plant of North America and now Russia.


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