|
Homoblasty
Heteroblasty is the significant and abrupt change in form and function, that occurs over the lifespan of certain plants. Characteristics affected include internode length and stem structure as well as leaf form, size and arrangement. It should not be confused with seasonal heterophylly, where early and late growth in a season are visibly different. This change is different from a homoblastic change which is a gradual change or little change at all, so that there is little difference between the juvenile and adult stages. Some characteristics affected by heteroblastic change include the distance between successive leaves (internode length) and stem structure as well as leaf form, size and arrangement. Heteroblasty is found in many plant families as well as only some species within a genus. This random spread of heteroblastic plants across species is believed to be caused by convergent evolution. The earlier and later stages of development are commonly labeled as juvenile and adult ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leaf
A leaf ( : leaves) is any of the principal appendages of a vascular plant stem, usually borne laterally aboveground and specialized for photosynthesis. Leaves are collectively called foliage, as in "autumn foliage", while the leaves, stem, flower, and fruit collectively form the shoot system. In most leaves, the primary photosynthetic tissue is the palisade mesophyll and is located on the upper side of the blade or lamina of the leaf but in some species, including the mature foliage of ''Eucalyptus'', palisade mesophyll is present on both sides and the leaves are said to be isobilateral. Most leaves are flattened and have distinct upper (adaxial) and lower ( abaxial) surfaces that differ in color, hairiness, the number of stomata (pores that intake and output gases), the amount and structure of epicuticular wax and other features. Leaves are mostly green in color due to the presence of a compound called chlorophyll that is essential for photosynthesis as it absorbs light ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bois De Rat 1 Juvenile And Subadult Foliage - Terenna Borbonica
Bois may refer to: * Bois, Charente-Maritime, France * Bois, West Virginia, United States * Bois d'Arc, Texas, United States * Les Bois, Switzerland * Landskrona BoIS, a Swedish professional football club * Tranås BoIS, a Swedish sports club People with the surname Bois * Cécile Bois (born 1971), French actress * Curt Bois (1901–1991), German actor * Désiré Georges Jean Marie Bois (1856–1946), French botanist * Guy Bois (historian), Guy Bois (1934–2019), French historian * John Bois (1560–1643), English scholar * Jon Bois (born 1982), American sportswriter * Mathieu Bois (born 1988), Canadian swimmer * Rob du Bois (1934–2013), Dutch composer and jurist See also * * * Boise (other) * Boy (other) * Dubois (other) * Grand Bois (other) * Petit Bois (other) {{disambiguation, geo, surname ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hedera Helix
''Hedera'', commonly called ivy (plural ivies), is a genus of 12–15 species of evergreen climbing or ground-creeping woody plants in the family Araliaceae, native to western, central and southern Europe, Macaronesia, northwestern Africa and across central-southern Asia east to Japan and Taiwan. Description On level ground they remain creeping, not exceeding 5–20 cm height, but on suitable surfaces for climbing, including trees, natural rock outcrops or man-made structures such as quarry rock faces or built masonry and wooden structures, they can climb to at least 30 m above the ground. Ivies have two leaf types, with palmately lobed juvenile leaves on creeping and climbing stems and unlobed cordate adult leaves on fertile flowering stems exposed to full sun, usually high in the crowns of trees or the tops of rock faces, from 2 m or more above ground. The juvenile and adult shoots also differ, the former being slender, flexible and scrambling or climbing with small a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Australia
Australia, officially the Commonwealth of Australia, is a Sovereign state, sovereign country comprising the mainland of the Australia (continent), Australian continent, the island of Tasmania, and numerous List of islands of Australia, smaller islands. With an area of , Australia is the largest country by area in Oceania and the world's List of countries and dependencies by area, sixth-largest country. Australia is the oldest, flattest, and driest inhabited continent, with the least fertile soils. It is a Megadiverse countries, megadiverse country, and its size gives it a wide variety of landscapes and climates, with Deserts of Australia, deserts in the centre, tropical Forests of Australia, rainforests in the north-east, and List of mountains in Australia, mountain ranges in the south-east. The ancestors of Aboriginal Australians began arriving from south east Asia approximately Early human migrations#Nearby Oceania, 65,000 years ago, during the Last Glacial Period, last i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carpodetus Serratus
''Carpodetus serratus'' is an evergreen tree with small ovate or round, mottled leaves with a toothy margin, and young twigs grow zig-zag, and fragrant white flowers in 5 cm panicles and later black chewy berries. It is an endemic of New Zealand. Its most common name is putaputāwētā which means many wētā emerge - referring to the nocturnal Orthoptera that live in holes in the trunk of this tree made by Pūriri moth caterpillars. Regional variations on the name also refer to this insect that lives and feeds on it such as kaiwētā, and punawētā. The tree is also sometimes called ''marbleleaf''. It is found in broadleaf forest in both North, South and Stewart Islands. It flowers between November and March, and fruits are ripe from January to February. Description Putaputāwētā is small tree of up to 10 m in height. It develops a slender trunk of up to 30 cm in diameter, which is covered by rough and corky bark, has a mottled grey-white colouring and is often ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elaeocarpus Hookerianus
''Elaeocarpus hookerianus'', commonly known as pokaka ( mi, pōkākā), is a native forest tree of New Zealand New Zealand ( mi, Aotearoa ) is an island country in the southwestern Pacific Ocean. It consists of two main landmasses—the North Island () and the South Island ()—and over 700 smaller islands. It is the sixth-largest island coun .... A cold tolerant plant, ''E. hookerianus'' can be found from valley floors to mountainous areas. Like many other New Zealand trees it has a distinctive juvenile form where its branches are interlaced and have tiny leaves. References hookerianus Trees of New Zealand Flora of New Zealand {{Oxalidales-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pseudopanax Crassifolius
''Pseudopanax crassifolius'', the horoeka or lancewood, is a New Zealand native tree belonging to the family Araliaceae. It is found throughout New Zealand from sea level up to about 750 m. The juvenile form, which lasts for between 15 and 20 years, is very easily recognized. The leaves are stiff and leathery with a prominent central rib, about 1 cm wide and up to 1 m long with irregular teeth, all growing downwards from a central stem. The young trunk has characteristic vertical swollen ridges. As the tree gets older the stem begins to branch, producing a bushy top, and the leaves become wider and shorter, losing their teeth. It is only when the tree is mature that it adopts a typical tree shape. One of the theories about this curious change of appearance is that the young plant had to protect itself against browsing by the moa, the giant flightless bird that roamed New Zealand's bush in prehistoric times. Once above moa height, it was out of danger and turns in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Costus Pulverulentus
''Costus'' is a group of herbaceous perennial plants in the family Costaceae, described by Linnaeus as a genus in 1753. It was formerly known as ''Hellenia'' after the Finnish botanist Carl Niclas von Hellens. It is widespread through tropical and subtropical regions of Asia, Africa, and the Americas. ''Costus'' is often characterized and distinguished from relatives such as ''Zingiber'' (true ginger) by its spiraling stems. The genus as a whole is thus often called spiral gingers, but this can also refer to '' C. barbatus'' specifically. ''Costus spectabilis'' is the floral emblem of Nigeria; its flowers are represented (erroneously in red instead of yellow color) on its coat of arms. It is important not to confuse ''Costus speciosus'', ''C. spectabilis'' etc. with the herb known by the common name "costus". Some species are of importance to herbivores, such as caterpillars of the restricted demon (''Notocrypta curvifascia'') which feed on ''Costus speciosus'' (crêpe ginge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acacia Implexa
''Acacia implexa'', commonly known as lightwood or hickory wattle, is a fast-growing Australian tree, the timber of which is used for furniture making. The wood is prized for its finish and strength. The foliage was used to make pulp and dye cloth. Description This long lived small to medium-sized tree with an upright habit and an open crown that typically grows to a height of and a width of . The tree can be have a single or multiple stems with rough greyish bark rough. The branchlets commonly lightly covered in waxy bloom but are not prominently ribbed. It has light green slender sickle shaped phyllodes that have a length of up to and a width of and have three to seven prominent nerves and many other fainter ones that are parallel and branching. Bipinnate leaves may persist on some plants. Young foliage have a purple colour in certain conditions. It blooms in summer and produces spherical cream coloured flowers with a strong perfume. The flowerheads have a diameter of and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zea Mays
Maize ( ; ''Zea mays'' subsp. ''mays'', from es, maíz after tnq, mahiz), also known as corn (North American and Australian English), is a cereal grain first domesticated by indigenous peoples in southern Mexico about 10,000 years ago. The leafy stalk of the plant produces pollen inflorescences (or "tassels") and separate ovuliferous inflorescences called ears that when fertilized yield kernels or seeds, which are fruits. The term ''maize'' is preferred in formal, scientific, and international usage as a common name because it refers specifically to this one grain, unlike ''corn'', which has a complex variety of meanings that vary by context and geographic region. Maize has become a staple food in many parts of the world, with the total production of maize surpassing that of wheat or rice. In addition to being consumed directly by humans (often in the form of masa), maize is also used for corn ethanol, animal feed and other maize products, such as corn starch and corn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Snapdragon
''Antirrhinum'' is a genus of plants commonly known as dragon flowers, snapdragons and dog flower because of the flowers' fancied resemblance to the face of a dragon that opens and closes its mouth when laterally squeezed. They are native to rocky areas of Europe, the United States, Canada, and North Africa. It is widely used as an ornamental plant in borders and as a cut flower. Description The Antirrhinum is morphologically diverse, particularly the New World group (''Saerorhinum''). The genus is characterized by personate flowers with an inferior gibbous corolla. Taxonomy ''Antirrhinum'' used to be treated within the family Scrophulariaceae, but studies of DNA sequences have led to its inclusion in a vastly enlarged family Plantaginaceae, within the tribe Antirrhineae. Circumscription The taxonomy of this genus is complex and not yet fully resolved at present. In particular the exact circumscription of the genus, especially the inclusion of the New World species (Sa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Antirrhinum Majus
''Antirrhinum majus'', the common snapdragon (often - especially in horticulture - simply "snapdragon"), is a species of flowering plant belonging to the genus ''Antirrhinum''. The plant was placed in the family Plantaginaceae following a revision of its prior classical family, Scrophulariaceae. The common name "snapdragon", originates from the flowers' reaction to having their throats squeezed, which causes the "mouth" of the flower to snap open like a dragon's mouth. It is widely used as an ornamental plant in borders and as a cut flower. It is perennial but usually cultivated as an annual plant. The species has been in culture since the 15th century. Taxonomy There are five subspecies: *''Antirrhinum majus'' subsp. ''majus''. Southern France, northeast Spain. *''Antirrhinum majus'' subsp. ''cirrhigerum'' (Ficalho) Franco. Southern Portugal, southwest Spain. *''Antirrhinum majus'' subsp. ''linkianum'' (Boiss. & Reut.) Rothm. Western Portugal (endemic). *''Antirrhinum maju ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.png "Click for more on -> Leaf")
.jpg "Click for more on -> Acacia Implexa")
