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Dendrosenecio Keniodendron
''Dendrosenecio keniodendron'' or giant groundsel is a species of the genus ''Dendrosenecio'' of the large family Asteraceae and is one of the several species of giant groundsels endemic to the high altitudes of the Afrotropic, including ''Dendrosenecio johnstonii'' ('' Senecio battiscombei'') occurring on Mount Kilimanjaro, Mount Kenya, and the Aberdare Mountains, '' Dendrosenecio keniensis'' occurring the lower alpine zone of Mount Kenya and ''D. keniodendron'' occurring in higher and drier sites on Mount Kenya. The giant rosette plants, sometimes tall, often grow in even-sized stands (presumably even-aged), with different understory communities under different-aged stands. Description ''Dendrosenecio keniodendron'' is a giant rosette plant occurring at altitudes between and . '' D. keniensis'' grows in wetter sites, and therefore at lower altitudes on average, but their ranges abut and they occasionally hybridise. Leaves and stems: ''D. keniodendron'' has woody stem ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Robert Elias Fries
(Klas) Robert Elias Fries (11 July 1876, Uppsala – 29 January 1966, Stockholm), the youngest son of Theodor Magnus Fries (1832–1913) and grandson of Elias Magnus Fries(1794–1878) and an expert on mushrooms. A Swedish botanist who was a member of the British Mycological Society and involved with The Botanical Museum (UPS), Botanic Garden and Botanical Museum Berlin-Dahlem, Natural History Museum (BM), the National Botanic Garden of Belgium (BR), Conservatoire et Jardin botaniques de la Ville de Genève (G), Royal Botanic Gardens, Kew (K),the Swedish Museum of Natural History Department of Phanerogamic Botany (S) and the United States National Herbarium, Smithsonian Institution (US). A collector of plants from 1901 through 1923 in Europe: Sweden; Tropical Africa: Kenya; Tropical South America: Bolivia; Temperate South America: Argentina. He sometimes worked with his father and his brother Thore Christian Elias Fries (1886–1931). He was part of the Swedish 1901–190 ... [...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] |
Poa Schimperi
''Poa'' is a genus of about 570 species of grasses, native to the temperate regions of both hemispheres. Common names include meadow-grass (mainly in Europe and Asia), bluegrass (mainly in North America), tussock (some New Zealand species), and speargrass. ''Poa'' () is Greek for "fodder". ''Poa'' are members of the subfamily Pooideae of the family Poaceae. Bluegrass, which has green leaves, derives its name from the seed heads, which are blue when the plant is allowed to grow to its natural height of two to three feet (0.6 to 0.9 meters). The genus ''Poa'' includes both annual plant, annual and perennial plant, perennial species. Most are plant sexuality, monoecious, but a few are plant sexuality, dioecious (separate male and female plants). The leaf, leaves are narrow, folded or flat, sometimes bristled, and with the basal sheath flattened or sometimes thickened, with a blunt or hooded apex and membranaceous ligule. Cultivation and uses Many of the species are important pa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carex Monostachya
''Carex monostachya'' is a species of sedge native to the mountains of East Africa. Distribution and ecology ''Carex monostachya'' lives at altitudes of above sea level in Afromontane region, including Mount Kenya, the Aberdare Range and Mount Elgon. It grows in the upper bamboo and ''Hagenia'' forests, in grassland in the ericaceous belt, and in shallow water near glaciers. ''Carex monostachya'' can be the dominant species in the bogs found on the mountains' higher reaches. Other plants found in the same habitat include the giant senecios of the genus ''Dendrosenecio'', the gentian '' Swertia crassiuscula'', the buttercup '' Ranunculus oreophytus'' and the thistle '' Carduus keniensis''. Taxonomy ''Carex monostachya'' was described by Achille Richard Achille Richard was a French botanist, botanical illustrator and physician (27 April 1794 in Paris – 5 October 1852). Biography Achille was the son of the botanist Louis-Claude Marie Richard (1754–1821). He was a phar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Festuca Pilgeri
''Festuca pilgeri'' is a species of grass which is endemic to East Africa. Description The plant is perennial and caespitose with long culms that are clumped. The ligule is going around the eciliate membrane while the leaf-sheaths are smooth and have a hairy surface. Leaf-blades are filiform and are by with hairy surface. The panicle is linear, contracted, inflorescenced and is long. Spikelets are oblong and solitary with pedicelled fertile spikelets that carry 3–5 fertile florets. The glumes are chartaceous and keelless, have acute apexes, with only difference is in size. The upper one is lanceolate and is long while the other one is linear and is . Fertile lemma is long and are elliptic, coriaceous and keelless. The lemma itself have an asperulous surface and acute apex while the main lemma have an awn that is long. The palea have two veins and scaberulous keels. Flowers have three stamens and hairy ovary while the fruits are caryopses with an additional pericar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carex
''Carex'' is a vast genus of more than 2,000 species of grass-like plants in the family Cyperaceae, commonly known as sedges (or seg, in older books). Other members of the family Cyperaceae are also called sedges, however those of genus ''Carex'' may be called true sedges, and it is the most species-rich genus in the family. The study of ''Carex'' is known as caricology. Description All species of ''Carex'' are perennial, although some species, such as '' C. bebbii'' and '' C. viridula'' can fruit in their first year of growth, and may not survive longer. They typically have rhizomes, stolons or short rootstocks, but some species grow in tufts (caespitose). The culm – the flower-bearing stalk – is unbranched and usually erect. It is usually distinctly triangular in section. The leaves of ''Carex'' comprise a blade, which extends away from the stalk, and a sheath, which encloses part of the stalk. The blade is normally long and flat, but may be folded, inrolled, c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Festuca
''Festuca'' (fescue) is a genus of flowering plants belonging to the grass family Poaceae (subfamily Pooideae). They are evergreen or herbaceous perennial tufted grasses with a height range of and a cosmopolitan distribution, occurring on every continent except Antarctica. The genus is closely related to ryegrass (''Lolium''), and recent evidence from phylogenetic studies using DNA sequencing of plant mitochondrial DNA shows that the genus lacks monophyly. As a result, plant taxonomists have moved several species, including the forage grasses tall fescue and meadow fescue, from the genus ''Festuca'' into the genus ''Lolium'', or alternatively into the segregate genus ''Schedonorus''. Because the taxonomy is complex, scientists have not determined how many true species belong to the genus, but estimates range from more than 400 to over 640.Darbyshire, S. J. and L. E. Pavlick''Festuca''. Grass Manual. Flora of North America. Fescue pollen is a significant contributor to hay feve ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alchemilla Johnstonii
''Alchemilla'' is a genus of herbaceous perennial plants in the family Rosaceae, with the common name lady's mantle applied generically as well as specifically to ''Alchemilla mollis'' when referred to as a garden plant. The plant used as a herbal tea or for medicinal usage such as gynaecological disorders is '' Alchemilla xanthochlora'' or in Middle Europe the so-called common lady's mantle ''Alchemilla vulgaris''. There are about 700 species, the majority native to cool temperate and subarctic regions of Europe and Asia, with a few species native to the mountains of Africa and the Americas. Most species of ''Alchemilla'' are clump-forming or mounded perennials with basal leaves arising from woody rhizomes. Some species have leaves with lobes that radiate from a common point and others have divided leaves—both are typically fan-shaped with small teeth at the tips. The long-stalked, gray-green to green leaves are often covered with soft hairs, and show a high degree of water-re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alchemilla Argyrophylla
''Alchemilla'' is a genus of herbaceous perennial plants in the family Rosaceae, with the common name lady's mantle applied generically as well as specifically to ''Alchemilla mollis'' when referred to as a garden plant. The plant used as a herbal tea or for medicinal usage such as gynaecological disorders is '' Alchemilla xanthochlora'' or in Middle Europe the so-called common lady's mantle ''Alchemilla vulgaris''. There are about 700 species, the majority native to cool temperate and subarctic regions of Europe and Asia, with a few species native to the mountains of Africa and the Americas. Most species of ''Alchemilla'' are clump-forming or mounded perennials with basal leaves arising from woody rhizomes. Some species have leaves with lobes that radiate from a common point and others have divided leaves—both are typically fan-shaped with small teeth at the tips. The long-stalked, gray-green to green leaves are often covered with soft hairs, and show a high degree of water-re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alchemilla
''Alchemilla'' is a genus of herbaceous perennial plants in the family Rosaceae, with the common name lady's mantle applied generically as well as specifically to ''Alchemilla mollis'' when referred to as a garden plant. The plant used as a herbal tea or for medicinal usage such as gynaecological disorders is '' Alchemilla xanthochlora'' or in Middle Europe the so-called common lady's mantle ''Alchemilla vulgaris''. There are about 700 species, the majority native to cool temperate and subarctic regions of Europe and Asia, with a few species native to the mountains of Africa and the Americas. Most species of ''Alchemilla'' are clump-forming or mounded perennials with basal leaves arising from woody rhizomes. Some species have leaves with lobes that radiate from a common point and others have divided leaves—both are typically fan-shaped with small teeth at the tips. The long-stalked, gray-green to green leaves are often covered with soft hairs, and show a high degree of water-re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mast (botany)
Mast is the fruit of forest trees and shrubs, such as acorns and other nuts. The term derives from the Old English ''mæst'', meaning the nuts of forest trees that have accumulated on the ground, especially those used historically for fattening domestic pigs, and as food resources for wildlife. In the aseasonal tropics of Southeast Asia, entire forests, including hundreds of species of trees and shrubs, are known to mast at irregular periods of 2–12 years. More generally, mast is considered the edible vegetative or reproductive parts produced by woody species of plants, i.e. trees and shrubs, that wildlife and some domestic animals consume as a food source. Mast is generated in large quantities during long-interval but regularly recurring phenological events known as mast seeding or masting. Such events are population-level phenomena hypothesized to be driven by a wide variety of factors, depending on the plant species involved, including availability of nutrients, economies of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Evergreen
In botany, an evergreen is a plant which has foliage that remains green and functional through more than one growing season. This also pertains to plants that retain their foliage only in warm climates, and contrasts with deciduous plants, which completely lose their foliage during the winter or dry season. Evergreen species There are many different kinds of evergreen plants, both trees and shrubs. Evergreens include: *Most species of conifers (e.g., pine, hemlock, blue spruce, and red cedar), but not all (e.g., larch) *Live oak, holly, and "ancient" gymnosperms such as cycads *Most angiosperms from frost-free climates, and rainforest trees *All Eucalypts * Clubmosses and relatives *Bamboos The Latin binomial term , meaning "always green", refers to the evergreen nature of the plant, for instance :'' Cupressus sempervirens'' (a cypress) :''Lonicera sempervirens'' (a honeysuckle) :''Sequoia sempervirens'' (a sequoia) Leaf longevity in evergreen plants varies from a few months ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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