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Blue-eyed Grass
''Sisyrinchium'' is a large genus of annual to perennial flowering plant in the family Iridaceae. Native to the New World, the species are known as blue-eyed grasses and, though not true grasses and in varieties with flower colors other than blue, are monocots. Several species in the eastern United States are threatened or endangered. Description These are not true grasses, but many species have the general appearance of grasses, as they are low-growing plants with long, thin leaves. They often grow on grasslands. Many species resemble irises, to which they are more closely related. Most species grow as perennial plants, from a rhizome, though some are short-lived (e.g. ''Sisyrinchium striatum)'', and some are annuals (e.g. '' Sisyrinchium iridifolium''). The flowers are relatively simple and often grow in clusters. Many species, particularly the South American ones, are not blue, despite the common name. The genus includes species with blue, white, yellow, and purple ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Moraea
''Moraea'', the Cape tulips, is a genus of plants in the family Iridaceae, first described as a genus in 1758. The group is widespread across Africa, the Mediterranean, and central and southwestern Asia. The genus name is a tribute to the English botanist Robert More. Moraeas have iris-like flowers. The corms of some species have been used as food, however they are usually small and some species are unpleasant, and some are poisonous. Some ''Moraea'' species are: * ''Moraea albiflora'' G. J. Lewis, Goldblatt * ''Moraea algoensis'' Goldblatt * ''Moraea amissa'' Goldblatt * ''Moraea angulata'' Goldblatt * ''Moraea angusta'' Thunberg, Ker Gawler * ''Moraea anomala'' J. G. Lewis * ''Moraea aristata'' (D. Delaroche) Ascherson & Graebner * ''Moraea aspera'' Goldblatt * ''Moraea atropunctata'' Goldblatt * ''Moraea australis'' (Goldblatt) Goldblatt * ''Moraea autumnalis'' Goldblatt * ''Moraea barkerae'' Goldblatt * ''Moraea barnardiella'' Goldblatt * ''Moraea barnardii'' L. Bolus * '' ... [...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 shoots from its 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 underground horizontally. A stolon is similar to a rhizome, but a stolon sprouts from an existing stem, has long internodes, and generates new shoots at the end, such as in the strawberry plant. 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 stem tuber is a thickened part of a rhizome or stolon that has been enlarged for use as a storage organ. In general, a tuber is high in starch, e.g. the potato, which is a modified stolon. The term "tuber" is often used imprecisely and is sometimes applied to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Corm
A corm, bulbo-tuber, or bulbotuber is a short, vertical, swollen underground plant stem that serves as a storage organ that some plants use to survive winter or other adverse conditions such as summer drought and heat (perennation). The word ''cormous'' usually means plants that grow from corms, parallel to the terms ''tuberous'' and ''bulbous'' to describe plants growing from tubers and bulbs. Structure A corm consists of one or more internodes with at least one growing point, generally with protective leaves modified into skins or tunics. The tunic of a corm forms from dead petiole sheaths—remnants of leaves produced in previous years. They act as a covering, protecting the corm from insects, digging animals, flooding, and water loss. The tunics of some species are thin, dry, and papery, at least in young plants, however, in some families, such as ''Iridaceae'', the tunic of a mature corm can be formidable protection. For example, some of the larger species of '' Wa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Theophrastus
Theophrastus (; grc-gre, Θεόφραστος ; c. 371c. 287 BC), a Greek philosopher and the successor to Aristotle in the Peripatetic school. He was a native of Eresos in Lesbos.Gavin Hardy and Laurence Totelin, ''Ancient Botany'', Routledge, 2015, p. 8. His given name was Tyrtamus (); his nickname (or 'godly phrased') was given by Aristotle, his teacher, for his "divine style of expression". He came to Athens at a young age and initially studied in Plato's school. After Plato's death, he attached himself to Aristotle who took to Theophrastus in his writings. When Aristotle fled Athens, Theophrastus took over as head of the Lyceum. Theophrastus presided over the Peripatetic school for thirty-six years, during which time the school flourished greatly. He is often considered the father of botany for his works on plants. After his death, the Athenians honoured him with a public funeral. His successor as head of the school was Strato of Lampsacus. The interests of Theophrastus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pliny The Elder
Gaius Plinius Secundus (AD 23/2479), called Pliny the Elder (), was a Roman author, naturalist and natural philosopher, and naval and army commander of the early Roman Empire, and a friend of the emperor Vespasian. He wrote the encyclopedic ''Naturalis Historia'' (''Natural History''), which became an editorial model for encyclopedias. He spent most of his spare time studying, writing, and investigating natural and geographic phenomena in the field. His nephew, Pliny the Younger, wrote of him in a letter to the historian Tacitus: Among Pliny's greatest works was the twenty-volume work ''Bella Germaniae'' ("The History of the German Wars"), which is no longer extant. ''Bella Germaniae'', which began where Aufidius Bassus' ''Libri Belli Germanici'' ("The War with the Germans") left off, was used as a source by other prominent Roman historians, including Plutarch, Tacitus and Suetonius. Tacitus—who many scholars agree had never travelled in Germania—used ''Bella Germani ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ancient Greek
Ancient Greek includes the forms of the Greek language used in ancient Greece and the ancient world from around 1500 BC to 300 BC. It is often roughly divided into the following periods: Mycenaean Greek (), Dark Ages (), the Archaic period (), and the Classical period (). Ancient Greek was the language of Homer and of fifth-century Athenian historians, playwrights, and philosophers. It has contributed many words to English vocabulary and has been a standard subject of study in educational institutions of the Western world since the Renaissance. This article primarily contains information about the Epic and Classical periods of the language. From the Hellenistic period (), Ancient Greek was followed by Koine Greek, which is regarded as a separate historical stage, although its earliest form closely resembles Attic Greek and its latest form approaches Medieval Greek. There were several regional dialects of Ancient Greek, of which Attic Greek developed into Koine. Dia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Olsynium
''Olsynium'' is a genus of summer- dormant rhizomatous perennial flowering plants in the iris family Iridaceae, native to sunny hillsides in South America and western North America. Douglas, G.W., Meidinger, D. & Penny, J.L. (2002). Rare Native Vascular Plants of British Columbia , ed. 2: 1-358. Province of British Columbia. Description Height is tall. Leaves are linear, long and broad. Flowers are bell-shaped, with six white, pink, or lilac tepals, and bloom from late winter to spring. Etymology The genus name is derived from the Greek words ''ol'', meaning "a little", and ''syn-'', meaning "joined", referring to the stamens., in Taxonomy The taxon ''Olsynium'' was formerly considered as part of the genus '' Sisyrinchium''. The following species are recognised in the genus ''Olsynium'':Search for "Olsynium", * '' Olsynium acaule'' (Klatt) Goldblatt - Peru, Bolivia, northwestern Argentina * '' Olsynium andinum'' (Phil.) Ravenna - central Chile, Neuquén Province in Arge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Olsynium Douglasii
''Olsynium douglasii'' is a species of flowering plant in the iris family (Iridaceae). Common names include Douglas' olsynium, Douglas' grasswidow, grass-widow, blue-eyed grass, purple-eyed-grass, and satin flower, It is the only species in the genus ''Olsynium'' in North America, the remaining 11 species being from South America. It was formerly treated in the related genus '' Sisyrinchium''. Despite the common names, it is not a true grass (Poaceae). Description ''Olsynium douglasii'' is a herbaceous bulbiferous perennial growing tall. The leaves are slender, linear, long and 1.5–3 mm broad. The flowers are bell-shaped to star-shaped, 15–25 mm long, with six purple tepals. Range ''Olsynium douglasii'' is native to western North America, from southern British Columbia south to northern California, and east to northwest Utah.'. Washington Burke Museum. Taxonomy There are two variety (biology), varieties: *''Olsynium douglasii'' var. ''douglasii''. Coastal weste ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cladistics
Cladistics (; ) is an approach to biological classification in which organisms are categorized in groups (" clades") based on hypotheses of most recent common ancestry. The evidence for hypothesized relationships is typically shared derived characteristics ( synapomorphies'')'' that are not present in more distant groups and ancestors. However, from an empirical perspective, common ancestors are inferences based on a cladistic hypothesis of relationships of taxa whose character states can be observed. Theoretically, a last common ancestor and all its descendants constitute a (minimal) clade. Importantly, all descendants stay in their overarching ancestral clade. For example, if the terms ''worms'' or ''fishes'' were used within a ''strict'' cladistic framework, these terms would include humans. Many of these terms are normally used paraphyletically, outside of cladistics, e.g. as a 'grade', which are fruitless to precisely delineate, especially when including extinct species. R ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sisyrinchium Angustifolium
''Sisyrinchium angustifolium'', commonly known as narrow-leaf blue-eyed-grass, is a herbaceous perennial growing from rhizomes, native to moist meadow and open woodland. It is the most common blue-eyed grass of the eastern United States, and is also cultivated as an ornamental. Range: Eastern Canada and US, west to Texas and Minnesota, in meadows, low woods, and shorelines. Height: . Stem: broadly winged, wide, usually branched. Leaves: wide. Tepal A tepal is one of the outer parts of a flower (collectively the perianth). The term is used when these parts cannot easily be classified as either sepals or petals. This may be because the parts of the perianth are undifferentiated (i.e. of very ...s: 6, blue, , each tipped with a sharp point, veined, and darkening toward central yellow patch. Gallery Image:Sisyrinchium angustifolium blue-eyed grass stream.jpg, Flowers, stem, and leaves Image:Sisyrinchium angustifolium02.jpg, Many, in grass Image:Sisyrinchium angustifolium bud ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sisyrinchium Californicum
''Sisyrinchium californicum'' is a species of flowering plant in the iris family known by the common names golden blue-eyed grass, yellow-eyed-grass, and golden-eyed-grass. It is native to the west coast of North America from British Columbia to central California, where it grows in moist habitat, often in coastal areas. Description ''Sisyrinchium californicum'' is a rhizomatous perennial herb producing a pale green, nonwaxy stem which grows up to about 60 centimeters tall. The herbage turns dark brown or black as it dries. The flat, narrow leaves are grasslike. The flower has six tepal A tepal is one of the outer parts of a flower (collectively the perianth). The term is used when these parts cannot easily be classified as either sepals or petals. This may be because the parts of the perianth are undifferentiated (i.e. of very ...s each between 1 and 2 centimeters in length. They are light to bright yellow, often with brown veining. The fruit is a dark-colored capsule. Refe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sisyrinchium Bellum
''Sisyrinchium bellum'', the western blue-eyed grass or Californian blue-eyed grass, is the common blue-eyed grass of California and Oregon in and west of the Sierra Nevada (U.S.), Sierra Nevada, its range extending south into Baja California. In parts of its range, western blue-eyed grass has previously been classified as ''Sisyrinchium eastwoodiae'', ''S. greenei'' and ''S. hesperium'', but these names are now considered synonyms. ''Sisyrinchium bellum'' grows as a perennial plant in open places where there is some moisture, particularly grassy areas, though it can also be found in woodlands and at altitudes up to . Like other species of blue-eyed grasses that are locally dominant, it is generally known simply as "blue-eyed grass" within its natural range. Description The stems of ''Sisyrinchium bellum'' can grow as long as , though they are often shorter. Its leaves are grassy and tufted. The flowers are in diameter and purplish-blue, varying somewhat in color from a true b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
