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Jovibarba Allioni
''Jovibarba'' ("beard of Jupiter") is a small genus of three species of succulent flowering plants in the family Crassulaceae, endemic to mountainous regions in the southeastern quadrant of Europe. The genus is sometimes classified as a subgenus of '' Sempervivum'', to which it is closely related. ''Jovibarba'' have pale-greenish-yellow or yellow actinomorphic flowers with about six petals, while ''Sempervivum'' have generally pinkish flowers with around twice as many petals, which open more widely than jovibarba flowers. The common name hen and chicks is applied to some ''Jovibarba'' species (and also species in several other genera). Most jovibarbas, like sempervivums, reproduce via offsets in addition to producing seeds via sexual reproduction. ''Jovibarba heuffelii'' does not produce offsets on stolons. Instead the offspring of this plant are produced within the mother plant. To propagate it must be split with a knife. The other two jovibarba species are commonly call ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Offset (botany)
In botany and horticulture, an offset (also called a pup) is a small, virtually complete daughter plant that has been naturally and asexually produced on the mother plant. They are clones, meaning that they are genetically identical to the mother plant. They divide mitotically. In the plant nursery business and gardens, they are detached and grown in order to produce new plants. This is a cheap and simple process for those plants that readily produce offsets as it does not usually require specialist materials and equipment. An offset or pup may also be used as a broad term to refer to any short shoot originating from the ground at the base of another shoot. Offsets form when meristem regions of plants, such as axillary buds or homologous structures, differentiate into a new plant with the ability to become self-sustaining. This is particularly common in species that develop underground storage organs, such as bulbs, corms and tubers. Tulips and lilies are examples of plants t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sempervivum
''Sempervivum'' (Brit. , U.S. ©sɛ̃mpeɹ'vivÅ©m is a genus of about 40 species of flowering plants in the family Crassulaceae, commonly known as houseleeks. Other common names include liveforever (the source of the taxonomical designation ''Sempervivum'', literally "always/forever alive") and hen and chicks, a name shared with plants of other genera as well. They are succulent perennials forming mats composed of tufted leaves in rosettes. In favourable conditions they spread rapidly via offsets, and several species are valued in cultivation as groundcover for dry, sunny locations. Habitat Houseleeks exist from Morocco to Iran, through the mountains of Iberia, the Alps, Carpathians, Balkan mountains, Turkey, the Armenian mountains, in the northeastern part of the Sahara Desert, and the Caucasus. Their ability to store water in their thick leaves allows them to live on sunny rocks and stony places in the mountain, subalpine and alpine belts. Most are hardy to US zone 4, and will ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jovibarba Hirta
''Jovibarba'' ("beard of Jupiter") is a small genus of three species of succulent flowering plants in the family Crassulaceae, endemic to mountainous regions in the southeastern quadrant of Europe. The genus is sometimes classified as a subgenus of ''Sempervivum'', to which it is closely related. ''Jovibarba'' have pale-greenish-yellow or yellow actinomorphic flowers with about six petals, while ''Sempervivum'' have generally pinkish flowers with around twice as many petals, which open more widely than jovibarba flowers. The common name hen and chicks is applied to some ''Jovibarba'' species (and also species in several other genera). Most jovibarbas, like sempervivums, reproduce via offsets in addition to producing seeds via sexual reproduction. '' Jovibarba heuffelii'' does not produce offsets on stolons. Instead the offspring of this plant are produced within the mother plant. To propagate it must be split with a knife. The other two jovibarba species are commonly called ro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jovibarba Globifera
''Jovibarba globifera'', common name rolling hen-and-chicks, is a species of succulent flowering plant in the family Crassulaceae. Subspecies *''Jovibarba globifera'' subsp. ''allionii'' (Jord. & Fourr.) J. Parnell *''Jovibarba globifera'' subsp. ''arenaria'' (W. D. J. Koch) J. Parn. *''Jovibarba globifera'' subsp. ''globifera'' - Hens-and-chickens House-leek *''Jovibarba globifera'' subsp. ''hirta'' (L.) J. Parn. *''Jovibarba globifera'' subsp. ''lagariniana'' Gallo Description ''Jovibarba globifera'' is a perennial herb with a hemispherical rosette of leaves of wide and a flower stem of . Rosette leaf blades are spatulate, curved, fleshy, with entire margin, usually with reddish-brown tips, while stem leaf blades are ovate. These plants have pale-greenish-yellow or yellow actinomorphic campanulate flowers with six petals, about wide. They bloom from June to August. Rolling hen-and-chicks produce small globe-shaped offsets ("globi") that are lightly attached and easily ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monocarpy
Monocarpic plants are those that flower and set seeds only once, and then die. The term is derived from Greek (''mono'', "single" + ''karpos'', "fruit" or "grain"), and was first used by Alphonse de Candolle. Other terms with the same meaning are ''hapaxanth'' and ''semelparous''. The antonym is polycarpic, a plant that flowers and sets seeds many times during its lifetime; the antonym of semelparous is ''iteroparous''. Plants which flower en masse (gregariously) before dying are known as plietesials. The term ''hapaxanth'' is most often in conjunction with describing some of the taxa of Arecaceae (palms) and some species of bamboo, but rarely used otherwise; its antonym is ''pleonanth''. This was first used by Alexander Braun. Monocarpic plants are not necessarily annuals, because some monocarpic plants can live a number of years before they will flower. In some monocarpic plants, flowering signals senescence, while in others the production of fruits and seeds causes changes w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rosette (botany)
In botany, a rosette is a circular arrangement of leaves or of structures resembling leaves. In flowering plants, rosettes usually sit near the soil. Their structure is an example of a modified stem in which the internode gaps between the leaves do not expand, so that all the leaves remain clustered tightly together and at a similar height. Some insects induce the development of galls that are leafy rosettes. In bryophytes and algae, a rosette results from the repeated branching of the thallus as the plant grows, resulting in a circular outline. Taxonomies Many plant families have varieties with rosette morphology; they are particularly common in Asteraceae (such as dandelions), Brassicaceae (such as cabbage), and Bromeliaceae. The fern '' Blechnum fluviatile'' or New Zealand Water Fern (''kiwikiwi'') is a rosette plant. Function in flowering plants Often, rosettes form in perennial plants whose upper foliage dies back with the remaining vegetation protecting the plant. Ano ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jovibarba Heuffelii
''Jovibarba heuffelii'', common name hen-and-chickens, as a plant species native to the Balkans and to the Carpathians in Europe but reportedly naturalized in Wisconsin and probably in other parts of North America. It grows on rocky outcrops. ''Jovibarba heuffelii'' is a perennial herb forming basal rosettes of succulent leaves that are ciliate along the margins. Flowering stalks are erect, succulent, up to 20 cm (8 inches) tall, bearing a cyme of up to 40 white to yellowish flowers. Each flower is up to 5 cm (2 inches) in diameter, with 6-7 fringed petals. Each plant is semelparous, meaning that it flowers only once, dying after its fruits mature. Some botanists treat the genus ''Jovibarba'' as part of the genus ''Sempervivum ''Sempervivum'' (Brit. , U.S. ©sɛ̃mpeɹ'vivÅ©m is a genus of about 40 species of flowering plants in the family Crassulaceae, commonly known as houseleeks. Other common names include liveforever (the source of the taxonomical designation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hen And Chicken Plant
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Hen and chicken is a common name for several unrelated groups of plants. The name refers to the tendency of certain of these species to reproduce vegetatively by means of plantlets. These tiny plants are produced by the mother plant, and take root on touching the ground. The name may refer to: *'' Chlorophytum comosum'', the commonly cultivated houseplant *''Sempervivum'' & ''Jovibarba'', two related genera of small succulent plant species, commonly called "Hen and chicks" *''Echeveria'', a genus of succulent plant species *''Sedum'', a genus of succulent plant species *''Bergenia'', a non-succulent Asian plant genus *'' Asplenium bulbiferum'', the "hen and chicken fern" of New Zealand See also Hen and chicks Hen and chicks (also known as hen-and-chickens, or hen-widdies in the southern United States) is a common name for a group of small succulent plants, a term that indicates a plant that possesses enlarged parts to store water. It belongs to t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hen And Chicks
Hen and chicks (also known as hen-and-chickens, or hen-widdies in the southern United States) is a common name for a group of small succulent plants, a term that indicates a plant that possesses enlarged parts to store water. It belongs to the flowering plant family Crassulaceae, native to southern Europe and northern Africa. The plants grow close to the ground with leaves formed around each other in a Rosette (botany), rosette, and propagating by offset (botany), offsets. The "hen" is the main, or mother, plant, and the "chicks" are a flock of offspring, which start as tiny buds on the main plant and soon sprout their own roots, taking up residence close to the mother plant. Plants commonly referred to as "Hens and chicks" include ground-hugging species of ''Sempervivum'' (houseleeks) such as ''Sempervivum'' 'Pekinese', ''Sempervivum arachnoideum, S. arachnoideum'' (cobweb houseleek), and ''Sempervivum tectorum, S. tectorum'' (common houseleek), as well as members of the rela ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Actinomorphic Flower
Floral symmetry describes whether, and how, a flower, in particular its perianth, can be divided into two or more identical or mirror-image parts. Uncommonly, flowers may have no axis of symmetry at all, typically because their parts are spirally arranged. Actinomorphic Most flowers are actinomorphic ("star shaped", "radial"), meaning they can be divided into 3 or more identical sectors which are related to each other by rotation about the center of the flower. Typically, each sector might contain one tepal or one petal and one sepal and so on. It may or may not be possible to divide the flower into symmetrical halves by the same number of longitudinal planes passing through the axis: Oleander is an example of a flower without such mirror planes. Actinomorphic flowers are also called radially symmetrical or regular flowers. Other examples of actinomorphic flowers are the lily (''Lilium'', Liliaceae) and the buttercup (''Ranunculus'', Ranunculaceae). Zygomorphic Zygomorp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Subgenus
In biology, a subgenus (plural: subgenera) is a taxonomic rank directly below genus. In the International Code of Zoological Nomenclature, a subgeneric name can be used independently or included in a species name, in parentheses, placed between the generic name and the specific epithet: e.g. the tiger cowry of the Indo-Pacific, ''Cypraea'' (''Cypraea'') ''tigris'' Linnaeus, which belongs to the subgenus ''Cypraea'' of the genus ''Cypraea''. However, it is not mandatory, or even customary, when giving the name of a species, to include the subgeneric name. In the International Code of Nomenclature for algae, fungi, and plants (ICNafp), the subgenus is one of the possible subdivisions of a genus. There is no limit to the number of divisions that are permitted within a genus by adding the prefix "sub-" or in other ways as long as no confusion can result. Article 4 The secondary ranks of section and series are subordinate to subgenus. An example is ''Banksia'' subg. ''Isostylis'', ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Philipp Maximilian Opiz
Philipp (Filip) Maximilian Opiz (5 June 1787 in Čáslav – 20 May 1858 in Prague) was a Czech-German forester and botanist. Beginning in 1805 he served as a cameral-beamter in his hometown of Čáslav, later working in Pardubice (from 1808) and Prague (from 1814). In 1831 he became a ''Forstamtsconcipist'' (forestry official). He was the taxonomic authority of numerous plant species, and the creator of many sets of exsiccatae. In 1830 Carl Borivoj Presl named the genus ''Opizia'' in his honor. Principal works * ''Deutschlands cryptogamische Gewächse. Ein Anhang zur Flora Deutschlands von Joh. Christ. Röhling'', 1817 - German cryptogams; Notes in regards to "Flora Deutschland" by Johann Christoph Röhling. * ''Böheims phänerogamische und cryptogamische gewächse'', 1823 - Bohemian phanerogam A spermatophyte (; ), also known as phanerogam (taxon Phanerogamae) or phaenogam (taxon Phaenogamae), is any plant that produces seeds, hence the alternative name seed plant. Sp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
