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- Dicranopteris linearis is a common species of fern known by many common names, including Old World forked fern, uluhe (Hawaiian), and dilim (Filipino). It is one of the most widely distributed ferns of the wet Old World tropics and adjacent regions, including Polynesia and the Pacific. In parts of the New World tropics its niche is filled by its relative, . This rhizomatous fern spreads via cloning, spreading along the ground and climbing on other vegetation, often forming thickets 3 metres deep or more. The stem grows from the rhizome, branches at a 45° angle, and forms fronds that continue to bud and branch. In this way the growth can continue for a long distance as the plant forms a mat, grows over itself in layers, and spreads. When climbing, the leafy branches can reach over 6 metres long and can climb 10 high when supported by a tree. The ultimate segments of the leaves are linear in shape, up to 7 centimeters long by a few millimeters wide. The undersides are hairy and sometimes waxy. It can also reproduce via spores. The fern grows easily on poorly drained, nutrient-poor soils and in disturbed habitats and steep slopes. It does not tolerate shade, so once established it will eventually be shaded out by taller vegetation unless it climbs above it. It may suppress the growth of new stands of trees, especially when it becomes a dense thicket. The fern is a keystone species in Hawaiian ecosystems, and dominates many areas in Hawaiian rainforests. It occurs on all the main Hawaiian islands. As a pioneer species in ecological succession, it can colonize bare sites such as lava flows, talus, and abandoned roads. When the fern grows onto a new site it produces layers of stems and leaves repeatedly until there is a network of vegetation. The leaves die and the stems are very slow to decompose, so the network persists. The network then fills with organic forest detritus, forming a litter layer which can be a meter thick. The network is penetrated by the fern's rhizomes and roots, such that the fern serves as its own substrate. Where the fern is eliminated, invasive species of plants can move in, so "one important function" of the fern is to prevent these plants from encroaching on the rainforest. The fern may have allelopathic effects, preventing the growth of other plants. Also, the fern is a very productive member of the forest ecosystem; despite being a relatively small amount of the biomass in the forest it accounts for over half of the primary productivity in some areas. This plant is used medicinally to treat intestinal worms in Indochina, skin ulcers and wounds in New Guinea, and fever in Malaysia. In vitro samples of the fern kill bacteria. The Diliman district in Quezon City in the Philippines' National Capital Region derived its name from Dicranopteris linearis, locally known as "Dilim" (the suffix "-an" indicates a place where something, in this case the fern, is common). As such, it is also the origin of the name of the University of the Philippines Diliman campus. The fiddleheads of the fern are used in floral arrangements. (en)
- Resam, rasam, atau paku andam (Dicranopteris linearis syn. Gleichenia linearis) merupakan jenis paku yang besar yang biasa tumbuh pada tebing-tebing di tepi jalan di pegunungan. Tumbuhan ini mudah dikenal karena peletakan daunnya yang menyirip berjajar dua dan tangkainya bercabang mendua (dikotom). Resam dikenal sebagai tumbuhan invasif di beberapa tempat karena mendominasi permukaan tanah menyebabkan tumbuhan lain terhambat pertumbuhannya. Tumbuhan ini dapat ditemukan di hampir semua daerah tropik dan subtropis di Asia dan Pasifik. Habitatnya adalah tebing teduh dan lembap mulai pada ketinggian 200 m hingga 1500 m di atas permukaan laut. Dulu tangkai daunnya dipakai sebagai pena. (in)
- Dicranopteris linearis, appelée uluhe en hawaïen, est une espèce de fougères du genre Dicranopteris. Elle se rencontre dans les régions tropicales du Sud-Ouest de l'océan Indien (Madagascar, archipel des Comores, Mascareignes) ainsi qu'en Polynésie. (fr)
- コシダ（小羊歯、学名: Dicranopteris linearis）は、時に背が高くなるシダ植物で、乾燥した山野に密な群落を作る。ウラジロに様々な点で似ているが、葉が繰り返して二叉分枝する点で異なる。 (ja)
- Dicranopteris linearis är en ormbunkeart som först beskrevs av Nicolaas Laurens Burman och som fick sitt nu gällande namn av . Dicranopteris linearis ingår i släktet Dicranopteris och familjen Gleicheniaceae. (sv)
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- Dicranopteris linearis, appelée uluhe en hawaïen, est une espèce de fougères du genre Dicranopteris. Elle se rencontre dans les régions tropicales du Sud-Ouest de l'océan Indien (Madagascar, archipel des Comores, Mascareignes) ainsi qu'en Polynésie. (fr)
- コシダ（小羊歯、学名: Dicranopteris linearis）は、時に背が高くなるシダ植物で、乾燥した山野に密な群落を作る。ウラジロに様々な点で似ているが、葉が繰り返して二叉分枝する点で異なる。 (ja)
- Dicranopteris linearis är en ormbunkeart som först beskrevs av Nicolaas Laurens Burman och som fick sitt nu gällande namn av . Dicranopteris linearis ingår i släktet Dicranopteris och familjen Gleicheniaceae. (sv)
- Dicranopteris linearis is a common species of fern known by many common names, including Old World forked fern, uluhe (Hawaiian), and dilim (Filipino). It is one of the most widely distributed ferns of the wet Old World tropics and adjacent regions, including Polynesia and the Pacific. In parts of the New World tropics its niche is filled by its relative, . This plant is used medicinally to treat intestinal worms in Indochina, skin ulcers and wounds in New Guinea, and fever in Malaysia. In vitro samples of the fern kill bacteria. The fiddleheads of the fern are used in floral arrangements. (en)
- Resam, rasam, atau paku andam (Dicranopteris linearis syn. Gleichenia linearis) merupakan jenis paku yang besar yang biasa tumbuh pada tebing-tebing di tepi jalan di pegunungan. Tumbuhan ini mudah dikenal karena peletakan daunnya yang menyirip berjajar dua dan tangkainya bercabang mendua (dikotom). Dulu tangkai daunnya dipakai sebagai pena. (in)
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