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Rudbeckia
''Rudbeckia'' () is a plant genus in the Asteraceae or composite family. Rudbeckia flowers feature a prominent, raised central disc in black, brown shades of green, and in-between tones, giving rise to their familiar common names of coneflowers and black-eyed-susans. All are native to North America, and many species are cultivated in gardens for their showy yellow or gold flower heads that bloom in mid to late summer. The species are herbaceous, mostly perennial plants (some annual or biennial) growing to 0.5–3.0 m tall, with simple or branched stems. The leaves are spirally arranged, entire to deeply lobed, and 5–25 cm long. The flowers are produced in daisy-like inflorescences, with yellow or orange florets arranged in a prominent, cone-shaped head; "cone-shaped" because the ray florets tend to point out and down (are decumbent) as the flower head opens. A large number of species have been proposed within ''Rudbeckia'', but most are now regarded as synonyms of the li ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rudbeckia Hirta
''Rudbeckia hirta'', commonly called black-eyed Susan, is a North American flowering plant in the family Asteraceae. It grows to tall with daisy-like yellow flower heads. There are numerous cultivars. It is toxic when ingested by cats, but was used Traditional medicine, medicinally by Native Americans. It is the state flower of Maryland. Description ''Rudbeckia hirta'' is an upright annual plant, annual (sometimes biennial plant, biennial or perennial plant, perennial) growing tall by wide. It has alternate, mostly basal leaves 10–18 cm long, covered by coarse hair, with stout branching stems and Bellis perennis, daisy-like, composite flower heads appearing in late summer and early autumn. In the species, the flowers are up to in diameter, with yellow ray florets circling conspicuous brown or black, dome-shaped cone of many small disc florets. However, extensive breeding has produced a range of sizes and colours, including oranges, reds and browns. Taxonomy Varieties ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dracopis
''Dracopis'' is a monotypic genus with ''Dracopis amplexicaulis'' (clasping coneflower; syn. ''Rudbeckia amplexicaulis'') the sole species. It is native to North America. It is an annual plant growing to 1 m tall, with simple or branched stems. The leaves are oval, long and broad. The flowers are produced in daisy-like inflorescences, with yellow to yellowish-purple florets. It is distinguished from the genus ''Rudbeckia'' (in which it used to be treated) by the presence of chaff subtending the ray flowers. It is one of at least four genera in the flowering plant family Asteraceae whose members are commonly known as coneflowers; the others being ''Echinacea'', ''Rudbeckia'' and ''Ratibida''. In cultivation in the UK this plant has gained the Royal Horticultural Society's Award of Garden Merit The Award of Garden Merit (AGM) is a long-established award for plants by the British Royal Horticultural Society (RHS). It is based on assessment of the plants' performance under U ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Echinacea
''Echinacea'' is a genus of herbaceous flowering plants in the daisy family. It has ten species, which are commonly called coneflowers. They are native only in eastern and central North America, where they grow in wet to dry prairies and open wooded areas. They have large, showy heads of composite flowers, blooming in summer. The generic name is derived from the Greek word ('), meaning "hedgehog", due to the spiny central disk. These flowering plants and their parts have different uses. Some species are cultivated in gardens for their showy flowers. Two of the species, '' E. tennesseensis'' and '' E. laevigata'', were formerly listed in the United States as endangered species; ''E. tennesseensis'' has been delisted due to recovery and ''E. laevigata'' is now listed as threatened. ''Echinacea'' has a long history of use in traditional medicine by Indigenous peoples for treating infections, pain, and wounds, and it later gained popularity in Western herbal remedies, especiall ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Olof Rudbeck The Younger
Olof Rudbeck the Younger or Olaus Rudbeckius d.y. (15 March 1660 – 23 March 1740) was a Swedish explorer, scientist, botanist, ornithologist and rector of Uppsala University. Biography Olof Rudbeck was born in Uppsala, Sweden, the son of Olaus Rudbeck Sr. (1630–1702), a professor of medicine at Uppsala University. He travelled to England, Holland and Germany in 1687 to study botany. Rudbeck took a medical degree at the Utrecht University in 1690. Returning to his home country in 1692, he succeeded his father as professor of medicine at Uppsala University. Serving alongside Lars Roberg (1664–1742), he specialized in anatomy, botany, zoology, and pharmacology, while Roberg gave lectures in medicine, surgery, physiology and chemistry. He travelled to Lapland in 1695, joining an expedition commissioned by the King Charles XI of Sweden (1655–1697), for which his mission was to study nature, the mountainous region in particular. He returned and published ''Lapponia illus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Olof Rudbeck The Elder
Olaus Rudbeck (also known as Olof Rudbeck the Elder, to distinguish him from his son, and occasionally with the surname Latinized as ''Olaus Rudbeckius'') (13 September 1630 – 12 December 1702) was a Swedish scientist and writer, professor of medicine at Uppsala University, and for several periods ''rector magnificus'' of the same university. He was born in Västerås, the son of Bishop Johannes Rudbeckius, who was personal chaplain to King Gustavus Adolphus, and the father of botanist Olof Rudbeck the Younger. Rudbeck is primarily known for his contributions in two fields: human anatomy and linguistics, but he was also accomplished in many other fields including music and botany. He established the first botanical garden in Sweden at Uppsala, called Rudbeck's Garden, but which was renamed a hundred years later for his son's student, the botanist Carl Linnaeus. Human anatomy Born into the Rudbeck family, Olaus was one of the pioneers in the study of lymphatic vessels. Ac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Perennial Plant
In horticulture, the term perennial (''wikt:per-#Prefix, per-'' + ''wikt:-ennial#Suffix, -ennial'', "through the year") is used to differentiate a plant from shorter-lived annual plant, annuals and biennial plant, biennials. It has thus been defined as a plant that lives more than 2 years. The term is also loosely used to distinguish plants with little or no woody growth (secondary growth in Tree girth measurement, girth) from trees and shrubs, which are also technically ''perennials''. Notably, it is estimated that 94% of plant species fall under the category of perennials, underscoring the prevalence of plants with lifespans exceeding two years in the botanical world. Perennials (especially small flowering plants) that grow and bloom over the spring and summer, die back every autumn and winter, and then return in the spring from their rootstock or other overwintering structure, are known as Herbaceous plant, herbaceous perennials. However, depending on the rigours of the loca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Biennial Plant
A biennial plant is a flowering plant that, generally in a temperate climate, takes two years to complete its biological life cycle. Background In its first year, the biennial plant undergoes primary growth, during which its vegetative structures (leaves, stems, and roots) develop. Usually, the stem of the plant remains short and the leaves are low to the ground, forming a rosette. After one year's growing season, the plant enters a period of dormancy for the colder months. Many biennials require a cold treatment, or vernalization before they will flower. During the next spring or summer, the stem of the biennial plant elongates greatly, or "bolts". The plant then flowers, producing fruits and seeds before it finally dies. There are far fewer biennials than either perennial plants or annual plants. Biennials do not always follow a strict two-year life cycle: most plants in the wild can take three or more years to mature. Rosette leaf size has been found to predict when a pla ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dot Moth
The dot moth (''Melanchra persicariae'') is a moth of the family Noctuidae. The species was first described by Carl Linnaeus in 1761. It is a very distinctive species with very dark brown, almost black, forewings marked with a large white stigma from which the species gets its common name. The hindwings are grey with a dark band at the termen. The wingspan is 38–50 mm. It flies at night in July and August and is attracted to light, sugar and flowers. Distribution The distribution area ranges from Spain in the west to Korea and Japan. It is found throughout Europe apart from the south-east. To the north it is found in Scotland and southern Fennoscandia, east through southern Russia, the Russian Far East and Siberia and Central Asia to the Kamchatka Peninsula. Then northern China to Korea and Japan. The southern boundary runs through northern Spain, Italy (except for Sicily), Macedonia, Bulgaria, Asia Minor, the southern Caucasus, northern Iran. In the Alps it rises up to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cabbage Moth
The cabbage moth (''Mamestra brassicae'') is primarily known as a pest that is responsible for severe crop damage of a wide variety of plant species. The common name, cabbage moth, is a misnomer as the species feeds on many fruits, vegetables, and crops in the genus ''Brassica'' (i.e. cabbage, broccoli, Brussels sprouts). Other notable host plants include tobacco, Helianthus, sunflower, and tomato, making this pest species particularly economically damaging. The moth spans a wide geographic range encompassing the entire Palearctic realm, Palearctic region. Due to this wide geographic region and the presence of various populations globally, local adaptations have resulted in a species with high variability in life history and behavior across different populations. Geographic range The cabbage moth has a wide geographic distribution across parts of Europe and Asia ranging from about 30°N to 70°N in latitude. This geographic range is within the Palearctic region, which include ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flowering Plant
Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (). The term angiosperm is derived from the Ancient Greek, Greek words (; 'container, vessel') and (; 'seed'), meaning that the seeds are enclosed within a fruit. The group was formerly called Magnoliophyta. Angiosperms are by far the most diverse group of Embryophyte, land plants with 64 Order (biology), orders, 416 Family (biology), families, approximately 13,000 known Genus, genera and 300,000 known species. They include all forbs (flowering plants without a woody Plant stem, stem), grasses and grass-like plants, a vast majority of broad-leaved trees, shrubs and vines, and most aquatic plants. Angiosperms are distinguished from the other major seed plant clade, the gymnosperms, by having flowers, xylem consisting of vessel elements instead of tracheids, endosperm within their seeds, and fruits that completely envelop the seeds. The ancestors of flowering plants diverged from the commo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Natural Philosophy
Natural philosophy or philosophy of nature (from Latin ''philosophia naturalis'') is the philosophical study of physics, that is, nature and the physical universe, while ignoring any supernatural influence. It was dominant before the development of modern science. From the ancient world (at least since Aristotle) until the 19th century, ''natural philosophy'' was the common term for the study of physics (nature), a broad term that included botany, zoology, anthropology, and chemistry as well as what is now called physics. It was in the 19th century that the concept of science received its modern shape, with different subjects within science emerging, such as astronomy, biology, and physics. Institutions and communities devoted to science were founded. Isaac Newton's book '' Philosophiæ Naturalis Principia Mathematica'' (1687) (English: ''Mathematical Principles of Natural Philosophy'') reflects the use of the term ''natural philosophy'' in the 17th century. Even in the 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Uppsala University
Uppsala University (UU) () is a public university, public research university in Uppsala, Sweden. Founded in 1477, it is the List of universities in Sweden, oldest university in Sweden and the Nordic countries still in operation. Initially founded in the 15th century, the university rose to significance during the rise of Swedish Empire, Sweden as a great power at the end of the 16th century and was then given relative financial stability with a large donation from Monarchy of Sweden, King Gustavus Adolphus of Sweden, Gustavus Adolphus in the early 17th century. Uppsala also has an important historical place in Swedish national culture, and national identity, identity for the Swedish establishment: in historiography, religion, literature, politics, and music. Many aspects of Swedish academic culture in general, such as the white student cap, originated in Uppsala. It shares some peculiarities, such as the student nation system, with Lund University and the University of Helsink ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
