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Dracaena (plant)
''Dracaena'' () is a genus of about 200 species of trees and succulent shrubs. The formerly accepted genera '' Pleomele'' and '' Sansevieria'' are now included in ''Dracaena''. In the APG IV classification system, it is placed in the family Asparagaceae, subfamily Nolinoideae (formerly the family Ruscaceae). It has also formerly been separated (sometimes with '' Cordyline'') into the family Dracaenaceae or kept in the Agavaceae (now Agavoideae). The name ''dracaena'' is derived from the romanized form of the Ancient Greek – ''drakaina'', "female dragon". The majority of the species are native to Africa and the Canary Islands, southern Asia through to northern Australia, with two species in tropical Central America. Description Species of ''Dracaena'' have a secondary thickening meristem in their trunk, termed Dracaenoid thickening by some authors, which is quite different from the thickening meristem found in dicotyledonous plants. This characteristic is shared with me ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dracaena Draco
''Dracaena draco'', the Canary Islands dragon tree or drago, is a subtropics, subtropical tree in the genus ''Dracaena (plant), Dracaena'', native plant, native to the Canary Islands, Cape Verde, Madeira, Mount Adad Madani, western Morocco, and possibly introduced into the Azores. It was first described by Carl Linnaeus in 1762 as ''Asparagus draco''. In 1767 he assigned it to the new genus, ''Dracaena (plant), Dracaena''. A related tree of similar appearance, the Socotra dragon tree ''Dracaena cinnabari'', grows on the island of Socotra, Yemen, more than 7000 km from the Canary Islands. Description ''Dracaena draco'' is an evergreen long lived tree capable of exceeding in height and having a trunk of or more in circumference, starting with a smooth bark that evolves to a more rough texture as it ages. The "dragon tree" is a Monocot, with a branching growth pattern currently placed in the asparagus family (Asparagaceae, subfamily Nolinoidae). When young it has a single stem ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Native Plant
In biogeography, a native species is indigenous to a given region or ecosystem if its presence in that region is the result of only local natural evolution (though often popularised as "with no human intervention") during history. The term is equivalent to the concept of indigenous or autochthonous species. A wild organism (as opposed to a domesticated organism) is known as an introduced species within the regions where it was anthropogenically introduced. If an introduced species causes substantial ecological, environmental, and/or economic damage, it may be regarded more specifically as an invasive species. A native species in a location is not necessarily also endemic to that location. Endemic species are ''exclusively'' found in a particular place. A native species may occur in areas other than the one under consideration. The terms endemic and native also do not imply that an organism necessarily first originated or evolved where it is currently found. Notion The notion ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dracaena Afromontana
''Dracaena afromontana'' is a species of flowering plant in the family Asparagaceae, native to the highlands of eastern tropical Africa; South Sudan (Imatong Mountains), Ethiopia, the Democratic Republic of the Congo, Rwanda, Burundi, Uganda, Kenya, Tanzania, and Malawi. It is used as a street tree in Kigali Kigali () is the Capital (political), capital and largest city of Rwanda. It is near the nation's geographic centre in a region of rolling hills, with a series of valleys and ridges joined by steep slopes. As a primate city, Kigali is a relativ ..., Rwanda. References afromontana Flora of South Sudan Flora of the Democratic Republic of the Congo Flora of Rwanda Flora of Burundi Flora of East Tropical Africa Flora of Malawi Plants described in 1910 Taxa named by Johannes Mildbraed {{Asparagaceae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dracaena Aethiopica
''Dracaena aethiopica '' is a species of succulent plant widely distributed in Southern Africa. Its binomial name—''aethiopica''—refers to its origins in Africa. A highly variable species, it grows in desert or dry shrubland (like many in its genus) and spreads rhizomatically. The leaves grow in rosettes and may be up to tall. Genetically, this species is most closely related to '' Dracaena ballyi''. In Africa, this species has been used to augment poisons for hunting and fishing purposes. References aethiopica The ''Aethiopica'' (; , , 'Ethiopian Stories') or ''Theagenes and Chariclea'' (; , ) is an ancient Greek novel which has been dated to the 220s or 370s AD. It was written by Heliodorus of Emesa and is his only known work. Author The author of t ... Plants described in 1794 Taxa named by Carl Peter Thunberg {{Asparagaceae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Guardian
''The Guardian'' is a British daily newspaper. It was founded in Manchester in 1821 as ''The Manchester Guardian'' and changed its name in 1959, followed by a move to London. Along with its sister paper, ''The Guardian Weekly'', ''The Guardian'' is part of the Guardian Media Group, owned by the Scott Trust Limited. The trust was created in 1936 to "secure the financial and editorial independence of ''The Guardian'' in perpetuity and to safeguard the journalistic freedom and liberal values of ''The Guardian'' free from commercial or political interference". The trust was converted into a limited company in 2008, with a constitution written so as to maintain for ''The Guardian'' the same protections as were built into the structure of the Scott Trust by its creators. Profits are reinvested in its journalism rather than distributed to owners or shareholders. It is considered a newspaper of record in the UK. The editor-in-chief Katharine Viner succeeded Alan Rusbridger in 2015. S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhizome
In botany and dendrology, a rhizome ( ) is a modified subterranean plant stem that sends out roots and Shoot (botany), shoots from its Node (botany), nodes. Rhizomes are also called creeping rootstalks or just rootstalks. Rhizomes develop from axillary buds and grow horizontally. The rhizome also retains the ability to allow new shoots to grow upwards. A rhizome is the main stem of the plant that runs typically underground and horizontally to the soil surface. Rhizomes have nodes and internodes and auxiliary buds. Roots do not have nodes and internodes and have a root cap terminating their ends. In general, rhizomes have short internodes, send out roots from the bottom of the nodes, and generate new upward-growing shoots from the top of the nodes. A stolon is similar to a rhizome, but stolon sprouts from an existing stem having long internodes and generating new shoots at the ends, they are often also called runners such as in the strawberry plant. A stem tuber is a thickene ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dracaena Angolensis
''Dracaena angolensis'' (synonym ''Sansevieria cylindrica''), commonly known as African spear or the spear sansevieria, is a succulent plant native to Angola in Southern Africa. For years, it was placed within the genus '' Sansevieria'' (snake-plants), a specific name which is still used synonymously by some; in the 21st century, ''Sansevieria'' became part of ''Dracaena'' (dragon-trees), after improved testing methods, physical comparisons, and other analyses found sufficient commonalities between the two genera to warrant subsumption. The genus ''Dracaena'' is a part of the Asparagaceae (asparagus family)—i.e., they are closely aligned with and related to such groups as the ''Asparagus'', ''Agave'', ''Beaucarnea'' (ponytail "palms"), ''Chlorophytum'' (spider-plants), ''Camassia'', ''Dasylirion'' (sotols), ''Hesperaloe'' (Texan or red yuccas) and ''Yucca'' (Joshua trees). Description ''Dracaena angolensis'' has striped, elongate, smooth, greenish-gray subcylindrical leaves. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dracaena Trifasciata
''Dracaena trifasciata'' is a species of flowering plant in the family Asparagaceae, native to tropical West Africa from Nigeria east to the Congo. It is most commonly known as the snake plant, Saint George's sword, mother-in-law's tongue, and viper's bowstring hemp, among other names. Until 2017, it was known under the synonym ''Sansevieria trifasciata''. This plant is often kept as a houseplant due to its non-demanding maintenance; they can survive with very little water and sun. Description It is an evergreen perennial plant forming dense strands, spreading by way of its creeping rhizome, which is sometimes above ground, sometimes underground. Its stiff leaves grow vertically from a basal rosette. Mature leaves are dark green with light gray-green cross-banding and usually range from long and wide, though it can reach heights above in optimal conditions. The specific epithet ''trifasciata'' means "with three bundles". The plant exchanges oxygen and carbon dioxide using ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dracaena Cinnabari
''Dracaena cinnabari'', the Socotra dragon tree or dragon blood tree, is a dragon tree native to the Socotra archipelago, part of Yemen, located in the Arabian Sea. It is named after the blood-like color of the red sap that the trees produce. It is considered the national tree of Yemen. A related tree of similar appearance, the drago, ''Dracaena draco'', grows in the Canary Islands, more than 7000 km from Socotra. Description The dragon blood tree has an upturned, densely packed crown. This evergreen species is named after its dark red resin, which is known as "dragon's blood". Unlike most monocot plants, ''Dracaena'' displays secondary growth, ''D. cinnabari'' even has growth zones resembling tree rings found in dicot tree species. Along with other arborescent ''Dracaena'' species it has a distinctive growth habit called "dracoid ". Its leaves are found only at the end of its youngest branches; its leaves are all shed every three or four years as new leaves simultan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dracaena Fragrans
''Dracaena fragrans'' (cornstalk dracaena), is a flowering plant species that is native to tropical Africa, from Sudan south to Mozambique, west to Côte d'Ivoire and southwest to Angola, growing in upland regions at altitude.JSTOR Plant Science''Dracaena fragrans''/ref> Description ''Dracaena fragrans'' is a slow growing shrub, usually multistemmed at the base, mature specimens reaching or more tall with a narrow crown of usually slender erect branches. Stems may reach up to diameter on old plants; in forest habitats they may become horizontal with erect side branches. Young plants have a single unbranched stem with a rosette of leaves until the growing tip flowers or is damaged, after which it branches, producing two or more new stems; thereafter, branching increases with subsequent flowering episodes.Huxley, A., ed. (1992). ''New RHS Dictionary of Gardening'' 2: 96. Macmillan . If a stem is damaged, it will ooze red latex. The leaves are glossy green, lanceolate, long an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asparagales
Asparagales (asparagoid lilies) are a diverse order of flowering plants in the monocots. Under the APG IV system of flowering plant classification, Asparagales are the largest order of monocots with 14 families, 1,122 genera, and about 36,000 species, with members as varied as asparagus, orchids, yuccas, irises, onions, garlic, leeks, and other Alliums, daffodils, snowdrops, amaryllis, agaves, butcher's broom, Agapanthus, Solomon's seal, hyacinths, bluebells, spider plants, grasstrees, aloe, freesias, gladioli, crocuses, and saffron. Most species of Asparagales are herbaceous perennials, although some are climbers and some are trees or shrubs. The order also contains many geophytes (bulbs, corms, and various kinds of tuber). The leaves of almost all species form a tight rosette, either at the base of the plant or at the end of the stem, but occasionally along the stem. The flowers are not particularly distinctive, being 'lily type', with six tepals and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Xanthorrhoeoideae
''Xanthorrhoea'' () is a genus of about 30 species of succulent flowering plants in the family Asphodelaceae. They are endemic to Australia. Common names for the plants include grasstree, grass gum-tree (for resin-yielding species), kangaroo tail, balga (Western Australia), yakka (South Australia), yamina (Tasmania), and black boy (or "blackboy"). The most common species is '' Xanthorrhoea australis'', and some of these names are applied specifically to this species. Description All species in the genus are perennials and have a secondary thickening meristem in the stem. Many, but not all, species develop an above ground stem. The stem may take up to twenty years to emerge. Plants begin as a crown of rigid grass-like leaves, the caudex slowly growing beneath. The main stem or branches continue to develop beneath the crown. This is rough-surfaced, built from accumulated leaf-bases around the secondarily thickened trunk. The trunk is sometimes unbranched, some species will branc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
