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Saxifraga Svalbardensis
''Saxifraga svalbardensis'' is a species of flowering plant in the family Saxifragaceae, endemic to Svalbard Svalbard ( , ), previously known as Spitsbergen or Spitzbergen, is a Norway, Norwegian archipelago that lies at the convergence of the Arctic Ocean with the Atlantic Ocean. North of continental Europe, mainland Europe, it lies about midway be .... It arose, probably after the end of the last ice age, as a hybrid between '' Saxifraga rivularis'' (the seed parent) and '' S.cernua'' (the pollen parent). References svalbardensis Flora of Svalbard Plants described in 1975 {{Saxifragaceae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saxifragaceae
Saxifragaceae is a family of Herbaceous plant, herbaceous Perennial plant, perennial flowering plants, within the core eudicot Order (biology), order Saxifragales. The Taxonomy (biology), taxonomy of the family has been greatly revised and the scope much reduced in the era of Molecular phylogenetics, molecular phylogenetic analysis. The family is divided into ten clades, with about 640 known species in about 35 accepted genera. About half of these consist of a single species, but about 400 of the species are in the type genus ''Saxifraga''. The family is predominantly distributed in the northern hemisphere, but also in the Andes in South America. Description Species are Herbaceous plant, herbaceous Perennial plant, perennials (rarely Annual plant, annual or biennial plant, biennial), sometimes Succulent plant, succulent or Xerophyte, xerophytic, often with perennating rhizomes. The Leaf, leaves are usually basally aggregated in alternate rosettes, sometimes on inflorescence ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Svalbard
Svalbard ( , ), previously known as Spitsbergen or Spitzbergen, is a Norway, Norwegian archipelago that lies at the convergence of the Arctic Ocean with the Atlantic Ocean. North of continental Europe, mainland Europe, it lies about midway between the northern coast of Norway and the North Pole. The islands of the group range from 74th parallel north, 74° to 81st parallel north, 81° north latitude, and from 10th meridian east, 10° to 35th meridian east, 35° east longitude. The largest island is Spitsbergen (37,673 km2), followed in size by Nordaustlandet (14,443 km2), (5,073 km2), and Barentsøya (1,288 km2). Bear Island (Norway), Bjørnøya or Bear Island (178 km2) is the most southerly island in the territory, situated some 147 km south of Spitsbergen. Other small islands in the group include Hopen (Svalbard), Hopen to the southeast of Edgeøya, Kongsøya and Svenskøya in the east, and Kvitøya to the northeast. The largest settlement is Longyearbyen, situated in Isfjor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saxifraga Rivularis
''Saxifraga rivularis'' is a species of saxifrage known by several common names, including highland saxifrage, weak saxifrage, alpine brook saxifrage, and pygmy saxifrage. Distribution ''Saxifraga rivularis'' is native to the northern parts of the Northern Hemisphere, where it has a circumpolar distribution, occurring throughout the Arctic and into the alpine climates of mountainous temperate areas, such as the Sierra Nevada in California. It also occurs in the Highlands of Scotland, from which it takes its name, however it is very rare in this area. It can be found in moist and wet, rocky habitat, in substrates rich in nitrogen and organic material, such as bird rocks and mossy peat flats. Description ''Saxifraga rivularis'' is a small perennial herb growing not much more than 12 centimeters in maximum height. It has small, lobed leaves at the base and along the stem. Basal leaves are between 5-20mm in length, and petioles are substantially longer than the blade.Streeter et al. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saxifraga Cernua
''Saxifraga cernua'', the drooping saxifrage, nodding saxifrage or bulblet saxifrage, is a flower common all over the High Arctic. It stretches further south in mountainous areas of the Alps, Norway, Iceland, Siberia and Alaska. It grows to 10–20 cm tall and the stem has 3–7 leaves. The basal and lower stern leaves are kidney-shaped, 3–5 lobed on long petioles. The flowers are mostly single and terminal. Petals are white and are much longer than the sepals. The plant reproduces by means of brownish-red bulbils A bulbil (also referred to as a bulbel, bulblet, and/or pup) is a small, young plant that is reproduced vegetatively from axillary buds on the parent plant's stem or in place of a flower on an inflorescence. These young plants are clones of the ... in the axils of the upper stem leaves. Flowers bloom June to August. This plant grows in moist sandy and mossy places, on ledges and in snow beds. It became a protected species in the UK in 1975 unde ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saxifraga
''Saxifraga'' is the largest genus in the family Saxifragaceae, containing about 473 species of holarctic perennial plants, known as saxifrages or rockfoils. The Latin word ''saxifraga'' means literally "stone-breaker", from Latin ' ("rock" or "stone") + ' ("to break"). It is usually thought to indicate a medicinal use for treatment of urinary calculi (known as kidney or bladder stones), rather than breaking rocks apart. Description Most saxifrages are small perennial, biennial (e.g. '' S. adscendens'') or annual (e.g. '' S. tridactylites'') herbaceous plants whose basal or cauline leaves grow close to the ground, often in a rosette. The leaves typically have a more or less incised margin; they may be succulent, needle-like and/or hairy, reducing evaporation. The inflorescence or single flower clusters rise above the main plant body on naked stalks. The small actinomorphic hermaphrodite flowers have five petals and sepals and are usually white, but red to yellow in some spe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flora Of Svalbard
There are over 190 vascular plant species on the Norwegian Arctic archipelago of Svalbard. This figure does not include algae, mosses, and lichens, which are non-vascular plants. For an island so far north, this number of species constitutes an astonishing variety of plant life. Because of the harsh climate and the short growing season, all the plants are slow growing. They seldom grow higher than In some areas, especially in warmer valleys, the plants produce carpets of blossoms. Svalbard has been divided into four vegetation zones. Plant species *'' Achillea millefolium'' L. (introduced) *'' Alchemilla glomerulans'' Buser *'' Alchemilla subcrenata'' Buser (introduced) *'' Alopecurus magellanicus'' Lam. *'' Anthriscus sylvestris'' L. *'' Arabis alpina'' L. – Alpine rock-cress *'' Arctagrostis latifolia'' (R.Br.) Griseb. *'' × Arctodupontia scleroclada'' (Rupr.) Tzvelev *'' Arenaria humifusa'' Wahlenb. *'' Arenaria pseudofrigida'' (Ostenf. & O.C.Dahl) Steffen – fringed s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
