edgepedia

Plants and algae

4,295 articles

Cereus

Cereus (candle cactus genus, Cactaceae), 30 accepted columnar South American and Caribbean cacti with nocturnal flowers and slit-dehiscent fruits; includes C. jamacaru, C. repandus, C. hildmannianus; distinct from Bacillus cereus bacteria.

Cereus hexagonus

Cereus hexagonus, the lady of the night cactus (also blue cereus, reina de la noche), is a treelike columnar Cactaceae from northern South America and northern Brazil, the type of genus Cereus, with six-angled branches, fragrant white night flowers, and edible red fruit.

Ceropegia

Ceropegia (Ceropegia L., Apocynaceae) is an Old World genus of about 380 perennial herbs with tuberous roots and flask-shaped trap flowers that temporarily imprison fly pollinators via brood-site deception; Brachystelma and stapeliads are now included.

Cestrum

Cestrum (jessamines), a Solanaceae genus of about 233 accepted shrub species native from Mexico to tropical America; tubular night-fragrant flowers, bird-dispersed berries, many species toxic to livestock yet grown as ornamentals.

Cestrum nocturnum

Cestrum nocturnum, lady-of-the-night or night-blooming jasmine (रातकि रानी), a Solanaceae shrub native from Mexico to Venezuela with strongly night-scented flowers; all parts are poisonous to humans and livestock, and it is invasive in parts of Australia and India.

Chaenomeles

Chaenomeles (flowering quince, Japanese quince) is an Asian genus of four spiny Rosaceae shrubs, grown for early spring flowers and aromatic fruit used in jams and traditional Chinese medicine.

Chaerophyllum

Chaerophyllum is a genus of annual, biennial, and perennial herbs in the carrot family, commonly known as chervils, named by Linnaeus in 1753 with about 70 accepted species.

Chamaecrista

Chamaecrista (L.) Moench, a genus of about 350–379 legume species (Fabaceae, Cassiinae) of herbs and shrubs native to the tropics and subtropics; nodulating, buzz-pollinated, extrafloral-nectary-bearing plants distinct from Cassia and Senna.

Chamaecyparis

Chamaecyparis, false cypress or white-cedar, is a genus of seven Cupressaceae conifer species native to North American coasts, Japan, and Taiwan, told from Cupressus by flattened branchlets, small first-year cones, and 2–4 seeds per scale.

Chamaecyparis eureka

Chamaecyparis eureka is an extinct Eocene cypress (Cupressaceae) described by Kotyk, Basinger, and McIver in 2003 from Axel Heiberg Island, Canadian Arctic; known from foliage and seed cones, most similar to Chamaecyparis pisifera, once the genus's oldest fossil.

Chamaecyparis lawsoniana

Chamaecyparis lawsoniana, Port-Orford-cedar or Lawson cypress, a Cupressaceae conifer native to SW Oregon and NW California, valued for aromatic timber and ornamental cultivars, threatened by Phytophthora lateralis root rot and rated Near Threatened.

Chamaecyparis obtusa

Chamaecyparis obtusa (ヒノキ, hinoki cypress), Japanese-Taiwanese evergreen cypress; sacred timber tree used since the Nara era, Japan's second-largest plantation species, IUCN Near Threatened, with many dwarf cultivars.

Chamaedorea

Chamaedorea, the largest neotropical palm genus with about 108 accepted species from Mexico to South America, comprises small dioecious rainforest understory palms; C. elegans is the parlour palm houseplant and xate leaves are a major Guatemalan forest product.

Chamaedorea elegans

Chamaedorea elegans, the parlor palm (also Neanthe bella), is a small dioecious solitary palm native from Mexico to Honduras, a Victorian-era houseplant tolerating low light, with over 400 million seeds traded yearly.

Chamaeleon

Chamaeleon Cass. is a small Asteraceae genus of spiny carline-thistle-like plants published by Cassini in 1827, native from the Mediterranean to Pakistan, with five accepted species including C. gummifer; some authorities merge it into Carlina.

Chamaenerion angustifolium

Chamaenerion angustifolium, fireweed or rosebay willowherb (syn. Epilobium angustifolium, Chamerion angustifolium), a perennial Onagraceae herb of the temperate Northern Hemisphere that colonizes burned ground, produces about 80,000 wind-dispersed seeds yearly, and is used in traditional herbal medicine.

Chamaerops humilis

Chamaerops humilis, European fan palm or Mediterranean dwarf palm, the sole species of the palm genus Chamaerops; a clustering fan palm native to the western and central Mediterranean, IUCN Least Concern.

Chamomile

Chamomile, chiefly German chamomile (Matricaria chamomilla) and Roman chamomile (Chamaemelum nobile), is a medicinal herb used in teas and extracts since antiquity; evidence is strongest but still preliminary for generalized anxiety disorder, and it is likely safe in tea amounts.

Chandelier Tree

Chandelier Tree, or Chandelier Drive-Thru Tree, is a coast redwood in Leggett, California, with a 1937 tunnel cut through its base; one of three remaining drive-through redwoods, family-owned in Underwood Park since 1922.

Char kway teow

Char kway teow (炒粿条) is a stir-fried flat rice noodle street dish of Singapore and Malaysia, especially Penang, made with cockles, prawns, egg, and lard, flavored by dark soy sauce and wok hei.

Char magaz

Char magaz (चार मगज) is a blend of watermelon, melon, cucumber, and pumpkin seed kernels used in Indian and Pakistani cuisines, especially Rajasthani and Mughlai gravies like korma.

Chara (alga)

Chara (muskgrass, stonewort) is a genus of branched green macroalgae in Characeae, with calcium carbonate-encrusted gritty branches and a musky odor. It indicates oligotrophic hardwater quality, feeds waterfowl, and belongs to the Charales once deemed land plants' closest algal relatives.

Charas

Charas, also known as gardaa, is the resin of the cannabis plant, collected as it exudes naturally and historically produced, sold, and taxed across northern South Asia.

Chard

Chard, also called Swiss chard or silver beet, is a cool-season leafy vegetable in the beet family, grown for its large edible leaves and fleshy stalks rather than a root.

Charles Walker Cathcart

Charles Walker Cathcart (1853–1932) was a Scottish surgeon at the Edinburgh Royal Infirmary and a rugby union forward who won three Scotland caps between 1872 and 1876.

Chayote

Chayote (Sechium edule, Nahuatl chayotl), also called mirliton, choko, or chow-chow, is a Mesoamerican cucurbit vine grown for its pear-shaped single-seeded fruit; domesticated in southern Mexico, propagated by planting whole fruit, and now a worldwide tropical vegetable.

Cheilanthes

Cheilanthes, the lip ferns, is a genus of xerophytic Pteridaceae ferns with marginal sori covered by lip-like leaf margins. Once over 150 species, it proved polyphyletic; Myriopteris was resurrected in 2013 and recent classifications synonymize Cheilanthes.

Cheilanthoideae

Cheilanthoideae, the cheilanthoid or lip ferns, a xeric-adapted subfamily of Pteridaceae with about 500 species in seven lineages; hemionitids reclassified into 22 monophyletic genera in 2025.

Cheirolepidiaceae

Cheirolepidiaceae, an extinct worldwide conifer family of the Triassic to latest Cretaceous or early Paleocene, diagnosed by Classopollis pollen, with Frenelopsis and Pseudofrenelopsis foliage and sister-to-crown-group conifer affinities.

Chelidonium

Chelidonium (greater celandine, bai qu cai 白屈菜) is a Papaveraceae genus of five species, best known for Chelidonium majus, an alkaloid-rich medicinal herb whose oral use carries documented idiosyncratic hepatotoxicity risk.