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Salix Discolor
''Salix discolor'', the American pussy willow or glaucous willow, is a species of willow native to North America, one of two species commonly called pussy willow. It is native to the vast reaches of Alaska as well as the northern forests and wetlands of Canada (British Columbia east to Newfoundland), and is also found in the northern portions of the contiguous United States (Idaho east to Maine, and south to Maryland).Plants of British Columbia''Salix discolor''/ref>Borealforests/ref> It is a weak-wooded deciduous shrub or small tree growing to tall, with brown shoots. The leaves are oval, 3–14 cm long and 1–3.5 cm broad, green above and downy grey-white beneath. The flowers are soft silky silvery catkins, borne in early spring before the new leaves appear, with the male and female catkins on different plants ( dioecious); the male catkins mature yellow at pollen release. The fruit is a small capsule 7–12 mm long containing numerous minute seeds emb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gotthilf Heinrich Ernst Muhlenberg
Gotthilf Heinrich Ernst Muhlenberg (17 November 1753 – 23 May 1815) was an American clergyman and botanist. Biography The son of Heinrich Melchior Muhlenberg, he was born in Trappe, Pennsylvania. He was educated at Franckesche Stiftungen in Halle starting in 1763 and in 1769 at the University of Halle. He returned to Pennsylvania in September 1770 and was ordained as a Lutheran minister. He served first in Pennsylvania and then as a pastor in New Jersey. He received a Doctor of Divinity degree from Princeton University. He married Mary Catherine Hall in 1774, with whom he would go on to have eight children. Despite his family beginning to take root in Philadelphia, Muhlenberg found he had no choice but to flee Philadelphia upon the outbreak of Revolutionary War hostilities in the region. Returning to his hometown of Trappe, he took up the study of botany. He served as the pastor of Holy Trinity Church in Lancaster, Pennsylvania from 1780 through 1815. In 1785, he was e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Catkin
A catkin or ament is a slim, cylindrical flower cluster (a spike), with inconspicuous or no petals, usually wind-pollinated (anemophilous) but sometimes insect-pollinated (as in ''Salix''). They contain many, usually unisexual flowers, arranged closely along a central stem that is often drooping. They are found in many plant families, including Betulaceae, Fagaceae, Moraceae, and Salicaceae. Occurrence Catkin-bearing plants include many trees or shrubs such as birch, willow, aspen, hickory, sweet chestnut, and sweetfern (''Comptonia''). In many of these plants, only the male flowers form catkins, and the female flowers are single ( hazel, oak), a cone (alder), or other types (mulberry). In other plants (such as poplar), both male and female flowers are borne in catkins. In Britain, they can be seen in January or February, when many trees are bare for winter. They can even occur in December. Evolution For some time, catkins were believed to be a key synapomorphy among the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cecropia Moth
''Hyalophora cecropia'', the cecropia moth, is North America's largest native moth. It is a member of the family Saturniidae, or giant silk moths. Females have been documented with a wingspan of five to seven inches (160 mm) or more. These moths can be found all across North America as far west as Washington and north into the majority of Provinces and territories of Canada, Canadian provinces. Cecropia moth larvae are most commonly found on maple trees, but they have also been found on cherry and birch trees among many others. The species was first described by Carl Linnaeus in his 1758 10th edition of Systema Naturae, 10th edition of ''Systema Naturae''. Life cycle Like other members of the Saturniidae, giant silk moth family, the cecropia moth lacks functional mouth parts and a digestive system. Due to this, they survive approximately two weeks. To find a mate, the female cecropia moth emits pheromones which the male detects with its sensitive antennae. Male cecropia mo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Black-waved Flannel Moth
''Megalopyge crispata'', the black-waved flannel moth, crinkled flannel moth or white flannel moth, is a moth of the Megalopygidae family. It is found along the east coast of the United States, and as far inland as Oklahoma. This wingspan is 25–40 mm. Adults are on wing from May to October. There is one generation per year in the north, two or more in the south. The stinging larva A larva (; plural larvae ) is a distinct juvenile form many animals undergo before metamorphosis into adults. Animals with indirect development such as insects, amphibians, or cnidarians typically have a larval phase of their life cycle. The ...e feed on various trees and shrubs. External linksBug Guide [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acadian Hairstreak
''Satyrium acadica'', the Acadian hairstreak, is a butterfly of the family Lycaenidae. It is found in North America from British Columbia east to Nova Scotia and south to Idaho, Colorado, the northern Midwest, Maryland, and New Jersey. The wingspan is 29–38 mm. Like other hairstreaks, each hindwing has two tails near the tip. The shorter, upper tail is very short and often does not look at all like a tail. The upperside is brown grey, while the underside of the hindwings is grey. Adults are on wing from June to August in one generation per year. They feed on flower nectar of various flowers such as butterflyweed, milkweeds, and thistles. The larvae feed on the leaves of '' Salix'' species, including '' S. nigra'' and '' S. sericea''. The species overwinters as an egg. Subspecies *''Satyrium acadica acadica'' *''Satyrium acadica coolinense'' (Watson & Comstock, 1920) *''Satyrium acadica montanense'' (Watson & Comstock, 1920) *''Satyrium acadica watrini'' (Dufrane, 1939) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pussy Willow
Pussy willow is a name given to many of the smaller species of the genus ''Salix'' (willows and sallows) when their furry catkins are young in early spring. These species include (among many others): *Goat willow or goat sallow ('' Salix caprea''), a small tree native to northern Europe and northwest Asia. *Grey willow or grey sallow ('' Salix cinerea''), a small tree native to northern Europe. *American pussy willow (''Salix discolor''), native to northern North America. Before the male catkins of these species come into full flower they are covered in fine, greyish fur, leading to a fancied likeness to tiny cats, also known as “pussies”. The catkins appear long before the leaves, and are one of the earliest signs of spring. At other times of year trees of most of these species are usually known by their ordinary names. Cultural traditions Asia The many buds of the pussy willow make it a favourite flower for Chinese New Year. The fluffy white blossoms of the pussy willow ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cut Flowers
Cut flowers are flowers or flower buds (often with some stem and leaf) that have been cut from the plant bearing it. It is usually removed from the plant for decorative use. Typical uses are in vase displays, wreaths and garlands. Many gardeners harvest their own cut flowers from domestic gardens, but there is a significant floral industry for cut flowers in most countries. The plants cropped vary by climate, culture and the level of wealth locally. Often the plants are raised specifically for the purpose, in field or glasshouse growing conditions. Cut flowers can also be harvested from the wild. The cultivation and trade of flowers is a specialization in horticulture, specifically floriculture. Cultivation Cut flower cultivation is intensive, usually on the basis of greenhouse monocultures, and requires large amounts of highly toxic pesticides, residues of which can often still be found in flower shops on imported flowers. These facts have spurred the development of movem ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Salix Caprea
''Salix caprea'', known as goat willow, pussy willow or great sallow, is a common species of willow native to Europe and western and central Asia.Meikle, R. D. (1984). ''Willows and Poplars of Great Britain and Ireland''. BSBI Handbook 4. . Description It is a deciduous shrub or small tree, reaching a height of , rarely to 13 m. The leaves are 3–12 cm long and from 2–8 cm wide, broader than most other willows. The flowers are soft silky, and silvery 3-7-cm-long catkins are produced in early spring before the new leaves appear; the male and female catkins are on different plants (dioecious). The male catkins mature yellow at pollen release, the female catkins mature pale green. The fruit is a small capsule 5–10 mm long containing numerous minute seeds embedded in fine, cottony hairs. The seeds are very small (about 0.2 mm) with the fine hairs aiding dispersal; they require bare soil to germinate.Rushforth, K. (1999). ''Trees of Britain and Europe''. Collins. . The tw ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Analgesic
An analgesic drug, also called simply an analgesic (American English), analgaesic (British English), pain reliever, or painkiller, is any member of the group of drugs used to achieve relief from pain (that is, analgesia or pain management). It is typically used to induce cooperation with a medical procedure. Analgesics are conceptually distinct from anesthetics, which temporarily reduce, and in some instances eliminate, sensation, although analgesia and anesthesia are neurophysiologically overlapping and thus various drugs have both analgesic and anesthetic effects. Analgesic choice is also determined by the type of pain: For neuropathic pain, traditional analgesics are less effective, and there is often benefit from classes of drugs that are not normally considered analgesics, such as tricyclic antidepressants and anticonvulsants. Various analgesics, such as many NSAIDs, are available over the counter in most countries, whereas various others are prescription drugs owing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Indigenous Peoples Of The Americas
The Indigenous peoples of the Americas are the inhabitants of the Americas before the arrival of the European settlers in the 15th century, and the ethnic groups who now identify themselves with those peoples. Many Indigenous peoples of the Americas were traditionally hunter-gatherers and many, especially in the Amazon basin, still are, but many groups practiced aquaculture and agriculture. While some societies depended heavily on agriculture, others practiced a mix of farming, hunting, and gathering. In some regions, the Indigenous peoples created monumental architecture, large-scale organized cities, city-states, chiefdoms, states, kingdoms, republics, confederacies, and empires. Some had varying degrees of knowledge of engineering, architecture, mathematics, astronomy, writing, physics, medicine, planting and irrigation, geology, mining, metallurgy, sculpture, and gold smithing. Many parts of the Americas are still populated by Indigenous peoples; some countries have ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Salicin
Salicin is an alcoholic β-glucoside. Salicin is produced in (and named after) willow (''Salix'') bark. It is a biosynthetic precursor to salicylaldehyde. Medicinal aspects Salicin is found in the bark of and leaves of willows, poplars and various other plants. Derivates are found in castoreum. Salicin from meadowsweet was used in the synthesis of aspirin (acetylsalicylic acid), in 1899 by scientists at Bayer. Salicin tastes bitter like quinine Quinine is a medication used to treat malaria and babesiosis. This includes the treatment of malaria due to '' Plasmodium falciparum'' that is resistant to chloroquine when artesunate is not available. While sometimes used for nocturnal le .... Salicin may cause an allergic skin reaction (skin sensitization; category 1). Mild side effects are standard, with rare occurrences of nausea, vomiting, rash, dizziness and breathing problems. Overdose from high quantities of salicin can be toxic, damaging kidneys, causing stomach ul ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Capsule (fruit)
In botany a capsule is a type of simple, dry, though rarely fleshy dehiscent fruit produced by many species of angiosperms (flowering plants). Origins and structure The capsule (Latin: ''capsula'', small box) is derived from a compound (multicarpeled) ovary. A capsule is a structure composed of two or more carpels. In (flowering plants), the term locule (or cell) is used to refer to a chamber within the fruit. Depending on the number of locules in the ovary, fruit can be classified as uni-locular (unilocular), bi-locular, tri-locular or multi-locular. The number of locules present in a gynoecium may be equal to or less than the number of carpels. The locules contain the ovules or seeds and are separated by septa. Dehiscence In most cases the capsule is dehiscent, i.e. at maturity, it splits apart (dehisces) to release the seeds within. A few capsules are indehiscent, for example those of ''Adansonia digitata'', ''Alphitonia'', and '' Merciera''. Capsules are often classif ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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