Herbs perennial, with a rhizome, bulb, or corm, rarely shrubby or treelike. Leaves basal and/or cauline, alternate, opposite, or whorled, parallel or rarely reticulate veined. Inflorescence a raceme, panicle, spike, umbel, reduced panicle, or other, or flowers solitary. Flowers bisexual, rarely unisexual, actinomorphic, rarely zygomorphic; bracts present or absent; bracteoles present or absent. Perianth usually corollalike, 6-merous, rarely 4- or 8-merous, in 2 whorls; segments free (tepals) or united. Stamens 6, rarely 3, 4, or 8, inserted opposite perianth segments; filaments free or adnate to perianth, rarely connate into a corona; anthers usually 2-loculed, basifixed or dorsifixed and versatile, introrse, latrorse, or extrorse, dehiscing usually by vertical slits. Carpels usually connate for most or all of their length, rarely only at base; ovary superior, rarely semi-inferior, 3-loculed, rarely 2- or 4-loculed, with axile placentae, or rarely 1-loculed with a parietal placenta; ovules usually anatropous. Nectaries septal, perigonal, or absent. Fruit a capsule or berry. Seeds with abundant endosperm and small embryo.
About 250 genera and 3500 species: worldwide, especially in temperate and subtropical regions; 57 genera (three endemic, two introduced) and 726 species (379 endemic, 11 introduced) in China.[1]
Plants treelike or shrubby. Stems ± woody, usually few branched, with conspicuous leaf scars distally. Leaves crowded at apex of stems, petiolate (or sessile) ; petiole 10--30 cm, base amplexicaul; leaf blade elliptic-lanceolate to sword-shaped, veins essentially parallel but with lateral veins branching from midvein in proximal 1/2. Inflorescence arising from axils of distal leaves, usually paniculate, large, many branched. Flowers bisexual, solitary, usually tubular-campanulate or subcylindric; pedicel usually short, articulate at or near apex. Perianth with short tube; lobes in 2 whorls of 3. Stamens 6, inserted in tube or throat of perianth; anthers versatile. Ovary 3-loculed; ovules 2 to many per locule. Style slender; stigma capitate, small. Fruit a capsule, leathery, 1- to several seeded. Seeds black, coated with phytomelanin.
About 20 species: S and SE Asia, Australia, Pacific Islands, South America; one species (introduced) in China.[2]
There are approximately 212 species, subspecies, varieties, forms, and cultivars in this genus. Here are just 100 of them: C. 'Autumn' · C. 'Button Black' · C. 'Dark Star' · C. 'Emerald Isle' · C. 'Green Goddess' · C. 'Jurassic Jade' · C. 'Mary Lott' · C. 'Mike Silver' · C. 'Pacific Coral' · C.'Pink Integrity' (Pink Integrity Cordyline) · C. 'Pink Stripe' · C. 'Purple Sensation' · C. 'Purple Tower' (Cabbage Tree) · C. 'Red Bush' · C. 'Red Fountain' · C. 'Red Mountain' · C. 'Red Star' (Red Star Dracaena) · C. 'Sundance' (Sundance Dracaena) · C. angustifolia · C. angustissima · C. angustissimma · C. arborea · C. atropurpurea · C. australis (Cabbage Palm) · C. australis 'Albertii' (Cabbage Palm) · C. australis 'Apricot Spider' · C. australis 'Atropurpurea' · C. australis 'Black Night' · C. australis 'Black Tower' · C. australis 'Coffee Cream' · C. australis 'Karo Kiri' · C. australis 'Krakatoa' · C. australis 'Lemon Fountain' · C. australis 'Midnight Star' (Cabbage Palm) · C. australis 'Olive Fountain' · C. australis 'Peko' · C. australis 'Pink Champagne' · C. australis 'Pink Stripe' (Cabbage Palm) · C. australis 'Purple Heart' · C. australis 'Purpurea' (Purple Cabbage Tree) · C. australis 'Red Band' · C. australis 'Red Robin' · C. australis 'Red Sensation' (Cabbage Palm) · C. australis 'Red Star' (False Dracaena) · C. australis 'Sir Victor Davies' · C. australis 'Sparkler' · C. australis 'Sundance' (Cabbage Palm) · C. australis 'Ti Tawhiti' · C. australis 'Torbay Coffee Cream' · C. australis 'Torbay Dazzler' · C. australis 'Torbay Green' · C. australis 'Torbay Razzle Dazzle' · C. australis 'Torbay Red' · C. australis 'Torbay Sunset' · C. australis 'Torbay Surprise' · C. australis 'Variegata' · C. australis Purpurea Group · C. banksii (Forest Cabbage Tree) · C. banksii 'Purpurea' · C. baueri (Bauers Dracaena) · C. beuckelaerii · C. brasiliensis · C. calocoma · C. cannaefolia · C. cannifolia · C. casanovae · C. cernua · C. cheesemanii · C. coerulea · C. congesta · C. dennisoni · C. densicoma · C. densicosma · C. diffusa · C. dracaenoides · C. ensifolia · C. erythrorachis · C. ferrea · C. flabelliformis · C. floribunda · C. fontanesiana · C. forbesii · C. forsteri · C. fragrans · C. fruticosa (Good Luck Plant) · C. fruticosa ''kiwi'' · C. fruticosa 'Atom' · C. fruticosa 'Baby Spoon' (Good Luck Plant) · C. fruticosa 'Baby Ti' · C. fruticosa 'Bra01' (Caruba" Black Good Luck Plant) · C. fruticosa 'Calypso Queen' · C. fruticosa 'Caruba' (Good Luck Plant) · C. fruticosa 'Dr. Brown' (Good Luck Plant) · C. fruticosa 'Florica Red' (Florica Red Cordyline) · C. fruticosa 'Glauca' (Cabbage Tree) · C. fruticosa 'Hawaiian Flag' (Good Luck Plant) · C. fruticosa 'Miss Andrea' (Good Luck Plant) · C. fruticosa 'Negri' · C. fruticosa 'New Guinea Black' · C. fruticosa 'Orange Prince'
There are approximately 73 species and subspecies in this genus: P. aethiops · P. australiensis · P. belcheri · P. brazieri · P. caledonica · P. carolinae · P. chlorostoma · P. chlorostomia · P. clathrata · P. columbarium · P. columbartum · P. croca · P. crocea · P. fastigium · P. fastigum · P. filicata · P. filicato · P. filmerae · P. forskali · P. forskalii · P. forskalii forskalii · P. forskalii leucothea · P. forskalli · P. fuscotincta · P. fuscotineta · P. fuscozonata · P. gemmata · P. granata · P. hesterae · P. hilaris · P. incarnata · P. incarnata} · P. incarnatus · P. ininuensis · P. inornata · P. iricolor · P. jonkeri · P. leucothea · P. lirata · P. liratus · P. mariei · P. marquesana · P. nassatula · P. nassatuta · P. nassoides · P. nassula · P. nassulata · P. nassutula · P. neglecta · P. newcombi · P. ochrostoma · P. philberti · P. phillerti · P. picta · P. preluchuana · P. pulchaella · P. pulchella · P. reincarnata · P. rhodostoma · P. rollandi · P. rosella · P. spinosa · P. squamosa · P. squamosus · P. subnassatula · P. sulcata luchuana · P. thaanumi · P. ustulata · P. ustulata luchuana · P. ustulata luhuana · P. violacea · P. wagneri · P. zealandica
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