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Remontant
Remontancy is the ability of a plant to flower more than once during the course of a growing season or year. It is a term applied most specifically to roses, and roses possessing this ability are called "repeat flowering" or remontant. The term originated in the nineteenth century from the French verb ''remonter'' or 'coming up again'.''Dictionary of the English Language'', Collins, 1979, p1235 Roses which lack this ability are termed "summer flowering", "once flowering" or non-remontant. Few wild rose species possess remontancy; notable exceptions being ''Rosa chinensis'', ''Rosa rugosa'' and ''Rosa fedtschenkoana''. As remontancy is considered a desirable horticultural characteristic, it is preferentially selected for by rose hybridisers. Remontant roses descended from ''Rosa chinensis'' have been grown in China for at least a thousand years,Quest-Ritson, C. & Quest-Ritson, B., ''The Royal Horticultural Society Encyclopedia of Roses'', Dorling Kindersley, 2003. but the first gard ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Garden Roses
Garden roses are predominantly Hybrid (biology), hybrid roses that are grown as ornamental plants in private or public gardens. They are one of the most popular and widely cultivated groups of flowering plants, especially in temperate climates. An enormous number of garden cultivars has been produced, especially over the last two centuries, though roses have been known in the garden for millennia beforehand. While most garden roses are grown for their flowers, often in dedicated rose gardens, some are also valued for other reasons, such as having ornamental fruit, providing ground cover, or for hedge, hedging. The cultivars are classified in a number of different and overlapping ways, generally without much reference to strict botany, botanical principles. Taking overall size and shape, the most common type is the bush rose, a rounded plant from 2 foot up to about 7 foot tall, above which height roses generally fall into the "'climbing and rambling'" class, the latter spreading wi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rosa Fedtschenkoana
''Rosa fedtschenkoana'' is a species in the plant genus ''Rosa'' in the family Rosaceae. Some authorities consider it a synonym of '' Rosa webbiana''. It is native to the foothills of the Ala Tau, Tian Shan and Pamir-Alai mountain ranges in central Asia and northwest China. It is named after Olga Fédchenko, a Russian botanist. It is deciduous, forming a bushy and suckering shrub up to 2.5 metres high and as much across. The branches are covered in many prickles, many of which are fine and straight, but some are thicker and slightly hooked. The pinnate leaves are pale greyish green in colour and have usually between 7 and 9 leaflets. The flowers are white, up to 5 cm across, and are borne singly or in small clusters at the tips of the branches throughout the summer months. The flowers' scent has been described as being "like 'Hovis' rownbread with a little blackberry jam". The flowers are followed by small, pear-shaped, bristly orange-red fruits. Recent DNA Deox ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rosa Chinensis
''Rosa chinensis'' (), known commonly as the China rose, Chinese rose, or Bengal rose, is a member of the genus '' Rosa'' native to Southwest China in Guizhou, Hubei, and Sichuan Provinces. The first publication of ''Rosa chinensis'' was in 1768 by Nikolaus Joseph von Jacquin in ''Observationum Botanicarum'', 3, p. 7 & plate 55. Description It is a shrub that reaches 1–2 m and grows in hedges or forms thickets. The leaves are pinnate, have 3–5 leaflets, each 2.5–6 cm long and 1–3 cm broad. In the wild species (sometimes listed as ''Rosa chinensis'' var. ''spontanea''), the flowers have five pink to red petals. The fruit is a red hip one to two cm in diameter. The strong branches have a smooth purplish-brown bark, and there may be many to no curved, stocky, flat spines. The alternately-arranged leaves, 12 to 27 cm long, are pinnately divided. The petiole and the rachis are sparsely spiny, with glandular hairs. The leaf blades usually have t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rosa Rugosa
''Rosa rugosa'' (rugosa rose, beach rose, Japanese rose, Ramanas rose, or letchberry) is a species of rose native to eastern Asia, in northeastern China, Japan, Korea and southeastern Siberia, where it grows on beach coasts, often on sand dunes. It is naturalized in much of Europe and parts of the United States and Canada. It should not be confused with '' Rosa multiflora'', which is also known as "Japanese rose". The Latin word "rugosa" means "wrinkled", referring to the wrinkled leaves.Jo Ann Gardner Sara Williams Often used as an ornamental plant, it has become invasive in parts of Europe, North America and South America. Description ''Rosa rugosa'' is a suckering shrub which develops new plants from the roots and forms dense thickets 1–1.50 m tall with stems densely covered in numerous short, straight prickles 3–10 mm long. The leaves are 8–15 cm long, pinnate with 5–9 leaflets, most often 7, each leaflet 3–4 cm long, with a distinctly corr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rosa Damascena
Rosa or De Rosa may refer to: Plants and animals * ''Rosa'' (plant), the genus of roses * Rosa (sea otter), a sea otter that has become popular on the internet * Rosa (cow), a Spanish-born cow People * Rosa (given name) * Rosa (surname) * Santa Rosa (female given name from Latin-a latinized variant of Rose) Places * 223 Rosa, an asteroid * Rosa, Alabama, a town, United States * Rosa, Germany, in Thuringia, Germany *Rösa, a village and former municipality in Saxony-Anhalt, Germany * Rosà a town in the province of Vicenza, Veneto, Italy *Monte Rosa, the second highest mountain in the Alps and Western Europe *Republic of South Africa, a southernmost country in Africa. Film and television * ''Rosa'' (1986 film), a Hong Kong film released by Bo Ho Films *'' Rosa – A Horse Drama'', a 1993-94 opera by Louis Andriessen on a libretto by Peter Greenaway * "Rosa" (''Doctor Who''), an episode of the eleventh series of ''Doctor Who'' Music *"Rosa", a song by Pixinguinha *De Rosa (ba ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cultivar
A cultivar is a kind of Horticulture, cultivated plant that people have selected for desired phenotypic trait, traits and which retains those traits when Plant propagation, propagated. Methods used to propagate cultivars include division, root and stem cuttings, offsets, grafting, micropropagation, tissue culture, or carefully controlled seed production. Most cultivars arise from deliberate human genetic engineering, manipulation, but some originate from wild plants that have distinctive characteristics. Cultivar names are chosen according to rules of the International Code of Nomenclature for Cultivated Plants (ICNCP), and not all cultivated plants qualify as cultivars. Horticulturists generally believe the word ''cultivar''''Cultivar'' () has two meanings, as explained in ''#Formal definition, Formal definition'': it is a classification category and a taxonomic unit within the category. When referring to a taxon, the word does not apply to an individual plant but to all plants t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rosa Gallica
''Rosa gallica'', the Gallic rose, French rose, or rose of Provins, is a species of flowering plant in the rose family, native to southern and central Europe eastwards to Turkey and the Caucasus. ''Rosa gallica'' was one of the first species of rose to be cultivated in central Europe. It is a parent of several important cultivars. Description ''Rosa gallica'' is a deciduous shrub forming large patches. The slender, straight prickles are various in size and frequency in this species. The leaves are pinnately-compound, with three to seven bluish-green leaflets. The flowers are clustered one to four together, on glandular pedicels. Each flower has five or more petals, sometimes producing double corollas. The flowers are fragrant and deep pink. The hips are globose to ovoid, 10–13 mm diameter, and orange to brownish. In the field of Food science, rose petal extract from ''Rosa gallica'' has been shown to have properties that reduce inflammation and wrinkling in human skin. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rosa Moschata
''Rosa moschata'', the musk rose, is a species of rose which has been long in cultivation. Its wild origins are in southern Iran to Afghanistan. Description ''Rosa moschata'' is a shrub growing to . The prickles on the stems are straight or slightly curved and have a broad base. The light- or greyish-green leaves have 5 to 7 ovate leaflets with small teeth; the veins are sometimes pubescent and the rachis bears prickles. The stipules are narrow with spreading, free tips. Small, ovate fruits called hips are borne, turning orange-red in autumn. The single white flowers are wide and grouped in a loose cyme or corymb, blooming on new growth from late spring until late autumn in warm climates, or from late summer onwards in cool-summer climates. The sepals are 2 cm long with slender points. The flowers have a characteristic musky scent emanating from the stamens, which is also found in some of its descendants. Similar species This species has historically been confused wit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
