WSU CAHNRS and WSU Extension

Hortsense

Glossary


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All Glossary

TermDefinition
callusa mass of thin-walled cells, usually developed as the result of wounding or infection.
caltropan herb with spiny pods; I.e., puncturevine
calyxthe outer set of perianth segments or floral envelope of a flower, usually green in color and smaller than the inner set.
cambiumA one- or two-celled layer between the phloem and xylem that produces both these tissues and results in diameter growth.
canesa long woody pliable stem rising from the ground.
cankera necrotic, often sunken lesion on a stem, branch, or twig of a plant.
cast skinsthe outer layer of an exoskeleton shed by an insect or mite and seen on leaves or twigs.
castingsfecal material; caterpillar pellets.
caterpillarin general, the larvae of Lepidoptera; in Hymenoptera, the larva of the saw-flies.
chlorosisof plants, fading of the color of the chlorophyll of plant leaves, caused by environmental stress, chemical deficiency, disease, insects, or mites.
chloroticof plants, fading of the color of the chlorophyll of plant leaves, caused by environmental stress, chemical deficiency, disease, insects, or mites.
cocoona covering, composed partly or wholly of silk or other viscid fiber, spun or constructed by many larvae as a protection to the pupa.
crawlersthe first stage (nymph) out of the egg of certain plant lice (scales, adelgids, etc.). This stage is quite mobile, while subsequent nymphal stages are stationary.
cultivarsan organism of a kind (as a variety, strain, or race) that has originated and persisted under cultivation.
cultivatedmaintained by humans.
cutwormscaterpillar stage of the night flying “millers” or noctuid moths.