cistus
A rockrose; a plant of the genus Cistus.

cistuses
plural of cistus

clammy goosefoot
Dysphania pumilio, an herb native to Australia and invasive in many other places.

clammyweed
Any of several North American plants of the genus Polanisia.

clammyweeds
plural of clammyweed

clethra
Any of the genus Clethra of flowering shrubs or small trees bearing flowers in clusters.

clethras
plural of clethra

cliffgreen
Paxistima canbyi, an ornamental evergreen groundcover or low shrub native to the Appalachian mountains of the Eastern US.

cliffgreens
plural of cliffgreen

clockvine
Any member of the species of the plants in genus Thunbergia.

clockvines
plural of clockvine

clogweed
Synonym of pigweed (“Heracleum sphondylium”).

clusterboorach
Alternative spelling of clusterbùrach.

coa
A primitive hoe, a sharp wooden rod formerly used by Native Americans to till the soil.

coachwood
An Australian rainforest tree, Ceratopetalum apetalum, with a straight trunk and a caramel-like fragrance, and greatly prized as a hardwood for its attractive grain.

coachwoods
plural of coachwood

coakum
Synonym of pokeweed.

coas
plural of coa

coca
Any of the four cultivated plants which belong to the family Erythroxylaceae, native to western South America.
The dried leaf of one of these plants, the South American shrub (Erythroxylum coca), widely cultivated in Andean countries, which is the source of cocaine and used as aphrodisiac in the past.

cocas
plural of coca

cocculus indicus
The fishberry (fruit of Anamirta cocculus).

cockscomb
A fleshy red crest of a rooster
A red cap once worn by court jesters
A yellow rattle, Rhinanthus minor (flowering plant native to Eurasia)
An annual garden plant (Celosia argentea var. cristata, syn. Celosia cristata), having showy red clusters of flowers
A conceited dandy
A serrated cleat once fitted to the yards of a square-rigged ship and used when the sail was being reefed

cockscombs
plural of cockscomb

coco
Coconut palm.
Coconut, the fruit of the coconut palm.

coco plum
Alternative spelling of cocoplum.

cocoes
plural of coco

cocopalm
Alternative spelling of coco palm.

cocopalms
plural of cocopalm

cocoplum
A fruit of the tree Chrysobalanus icaco.
A tree of the species Chrysobalanus icaco

cocoplums
plural of cocoplum

cocos
plural of coco

coigue
Dombey's beech

coigues
plural of coigue

coihue
Alternative form of coigue.

coihues
plural of coihue

colicroot
A bitter American herb of the bloodwort family (Haemodoraceae), with small yellow or white flowers in a long spike.
Any of several other plants with bitter roots.
Any of several other plants with bitter roots.
Any of several other plants with bitter roots.
Any of several other plants with bitter roots.
Any of several other plants with bitter roots.
Any of several other plants with bitter roots.

colicroots
plural of colicroot

comandra
The bastard toadflax, Comandra umbellata.

comandras
plural of comandra

combretum
Any of a number of tropical trees and shrubs in the genus Combretum.

combretums
plural of combretum

common amaranth
Amaranthus retroflexus, a species of plant, considered to be a weed.

common box
Buxus sempervirens, an evergreen shrub found from England and Morocco to Iran.

common dogwood
A tree of species Cornus sanguinea, native to most of Europe

common heliotrope
A summer-growing annual native flower of Southern and Central Europe, Western Asia and Northern Africa (Heliotropium europaeum).

common ivy
A plant of species Hedera helix, the most common ivy in Europe, widely naturalized elsewhere.

common milkwort
A plant of species Polygala vulgaris.
A plant of species Senega sanguinea.

coontails
plural of coontail

corallinites
plural of corallinite

cordillera
An extensive, continent-wide chain of mountains, especially one in the Americas.

cordilleras
plural of cordillera

cornelian cherry
The cherry-like fruit of the cornel, Cornus mas.
The tree that bears this fruit.

cornus
Any of the genus Cornus of dogwoods.

cornuses
plural of cornus

cow-wheat
Any of several flowering plants in the genus Melampyrum.

cowwheat
Alternative spelling of cow-wheat.

cowwheats
plural of cowwheat

coxcomb
The cap of a court jester, adorned with a red stripe.
The fleshy red pate of a rooster.
A foolish or conceited person; a dandy.

coxcombs
plural of coxcomb

crackerberries
plural of crackerberry

crackerberry
The Canadian bunchberry, Cornus canadensis.

crampbark
A highbush cranberry (Viburnum opulus).

cranberrybush
Synonym of highbush cranberry.

creat
An usher to a riding master (riding instructor).

creats
plural of creat

creosote
A pale yellow oily liquid, containing phenols and similar compounds, obtained by the destructive distillation of wood tar, once used medicinally.
A similar brown liquid obtained from coal tar used as a wood preservative.
The creosote bush.
A flammable black porous brittle glassy byproduct of wood burning, typically formed inside chimneys.

creosotebush
Alternative form of creosote bush.

creosotebushes
plural of creosotebush

creosotes
plural of creosote

crossandra
Any of the genus Crossandra of flowering plants in the family Acanthaceae.

crossandras
plural of crossandra

crossvine
A flowering vine native to the southeastern US, Bignonia capreolata (sometimes misidentified as Bignonia crucigera in older books).

crossvines
plural of crossvine

crucifixion thorns
plural of crucifixion thorn

crunchweed
Synonym of charlock.

cubeb
A tailed pepper plant (Piper cubeba), an Indonesian plant cultivated for its berries and essential oil.
One of the berries of this plant, used as a condiment.

cubebs
plural of cubeb

cuca
Alternative form of coca.

cupseed
The menispermaceous plant Calycocarpum lyonii.

cupseeds
plural of cupseed

dactylocampsis
Permanent flexion or bending of one or more fingers or toes.

dahoon
Ilex cassine, a holly native to the southeastern coast of North America.

dahoons
plural of dahoon

dais
A raised platform in a room for a high table, a seat of honour, a throne, or other dignified occupancy, such as ancestral statues; a similar platform supporting a lectern, pulpit, etc., which may be used to speak from.
A bench, a settle, a pew.
An elevated table in a hall at which important people were seated; a high table.
The canopy over an altar, etc.

daises
plural of dais.

damar
A large tree of the order Coniferae, indigenous to the East Indies and Australasia, now genus Agathis.
A clear to yellow resin, obtained in Malaya from trees of the genera Shorea (family Dipterocarpaceae) and Symplocos (family Symplocaceae), used in varnishes and inks
Any of various hard resins, obtained especially from evergreen trees, notably of the genera Agathis (family Araucariaceae) and Hopea (family Dipterocarpaceae), native to southeast Asia, also used in varnishes and lacquers.

damars
plural of damar

damiana
Turnera diffusa, an American passifloraceous shrub used in making a traditional Mexican liqueur, and as an aphrodisiac.
A preparation made from this plant.

dammar
Alternative form of damar.

dammara
Alternative form of damar.

dammer
One who builds a dam.

daneweed
Synonym of danewort (“the plant Sambucus ebulus”).

danewort
A European dwarf version of the elder, Sambucus ebulus, that has a bad smell

daneworts
plural of danewort

daphne
Any one of least 50 species of shrub in the genus Daphne of the family Thymelaeaceae, some of which are grown as ornamentals.

daphnes
plural of daphne

dark-blue snakeweed
Alternative form of dark blue snakeweed.

davidia
Any of the genus Davidia of flowering trees.

davidias
plural of davidia

deas
Alternative form of dais.

deases
plural of deas