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Juncaceae
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Juncaceae is a family of flowering plants, commonly known as the rush family. It consists of 7 genera and about 464 known species of slow-growing, rhizomatous, herbaceous monocotyledonous plants that may superficially resemble grasses and sedges. They often grow on infertile soils in a wide range of moisture conditions. The best-known and largest genus is Juncus. Most of the Juncus species grow exclusively in wetland habitats. A few rushes, such as Juncus bufonius are annuals, but most are perennials. Despite the apparent similarity, Juncaceae are not counted among the plants with the vernacul
Juncaceae, commonly known as the rush family, is a group of about 464 species of slow-growing flowering plants that often thrive in wet or infertile environments and can resemble grasses and sedges. These plants matter because they are widespread in wetland ecosystems and play a role in various natural habitats, with the largest genus, Juncus, being particularly common in wetland areas.
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Species
russenfamilie
Juncaceae
FAMILY
- KingdomPlantae
- PhylumTracheophyta
- ClassLiliopsida
- OrderPoales
- FamilyJuncaceae
灯心草科共有8属约400余种，分布在世界各地的温带和寒带的湿地和贫瘠土壤地带，有些品种也曾长在热带的山区。中国只有灯心草属和地杨梅属2属共约80余种，分布在全国各地，南部较少。 其中灯心草可编席，髓心入药或为灯心。 本可植物绝大部分为草本，也有灌木（如Prionium属），大部分为多年生，少数为一年生的。有匍匐状根茎和直立的茎；叶扁平或圆柱状，常绿，有时退化为膜质的鞘，在茎上分为三排，但双排草属的叶是两排，地杨梅属的叶有白色的毛；小花两性，绿色或稍白色，花瓣6，2轮，雄蕊6，稀3枚；果实为蒴果，分裂为3果瓣。 其中灯心草（Juncus effusus L.）可编席，髓心入药，在古代可以作为灯心。 1981年的克朗奎斯特分类法单独列出一个灯心草目，包括本科和梭子草科，2003年根据基因亲缘关系分类的APG II 分类法将本科列入禾本目中。 地杨梅（Luzula campestris）
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Juncaceae is a family of flowering plants, commonly known as the rush family. It consists of 7 genera and about 464 known species of slow-growing, rhizomatous, herbaceous monocotyledonous plants that may superficially resemble grasses and sedges. They often grow on infertile soils in a wide range of moisture conditions. The best-known and largest genus is Juncus. Most of the Juncus species grow exclusively in wetland habitats. A few rushes, such as Juncus bufonius are annuals, but most are perennials. Despite the apparent similarity, Juncaceae are not counted among the plants with the vernacular name bulrush.
==Description== The leaves are evergreen and well-developed in a basal aggregation on an erect stem. They are alternate and tristichous (i.e., with three rows of leaves up the stem, each row of leaves arising one-third of the way around the stem from the previous leaf). Only in the genus Distichia are the leaves distichous. The rushes of the genus Juncus have flat, hairless leaves or cylindrical leaves. The leaves of the wood-rushes of the genus Luzula are always flat and bear long white hairs.