Stipa is a genus of around 300 large perennial hermaphroditic grasses collectively known as feather grass, needle grass, and spear grass. They are placed in the subfamily Pooideae and the tribe Stipeae, which also contains many species formerly assigned to Stipa, which have since been reclassified into new genera. Many species are important ...

2024年4月1日 · First, we found that projected changes in climate across the Eurasian steppe had different effects on Stipa species, thereby influencing the grazing value of Stipa-dominated steppe ecosystems. Specifically, the pastoral value will likely increase in the Tibetan alpine steppe, and to a lesser extent in the Central Asian subregion.

2007年8月25日 · Stipa-species are wide-spread in Central Asia, but sexual reproduction in the dry steppes is rare. To facilitate conservation and restoration of these important rangelands, we studied germination characteristics of three common Mongolian Stipa-species under field- …

叶鞘平滑或稍糙涩，长于节间；叶舌披针形，基生者长1-1.5毫米，秆生者长4-8 (10)毫米；叶片纵卷成线形，上面被微毛，下面粗糙，基生叶长可达40厘米。 圆锥花序 狭窄，几全部含藏于叶鞘内；小穗草黄或灰白色；颖尖披针形，先端细丝状，长2.5-3.5厘米，第一颖具1-3脉，第二颖具3-5脉（间脉多不明显）；外稃长1-1.2厘米，背部具有排列成纵行的短毛，芒两回膝曲，光亮，边缘微粗糙，第一芒柱扭转，长4-5厘米，第二芒柱稍扭转，长约1.5厘米，芒针卷曲，长约10厘米，基 …

2023年11月28日 · In this study, we aimed to identify the phylogenetic relationships and explore the evolutionary history of Stipa using transcriptomic data. Samples of 12 Stipa species were collected from the Qinghai-Tibet Plateau and Mongolian Plateau, where they are widely distributed, and transcriptome sequencing was performed using their fresh spikelet tissues.

2017年3月8日 · Stipa spp. are mainly pollinated by wind and are facultatively cleistogamous, producing chasmogamous as well as cleistogamous flowers 11. Many species of Stipa are protected, particularly in...

2024年8月9日 · Our results showed that functional traits drive the substitution distribution of Stipa species, in being variously coupled with its desert, typical, and meadow steppe habitat types. The leaf, root, and whole-plant economic spectra of Stipa species in desert steppe exhibit a

The Hesperostipa species, formerly called Stipa, are endemic to North America. The new name adds Classical Greek : ἕσπερος , romanized: hesperos , lit. 'western', as other Stipa species are found on the Eurasian continent (i.e., the eastern hemisphere).

2024年12月7日 · Linnaeus, C. 1753. Species Plantarum.Tomus I: 78. Reference page.; Hamasha, H.R., von Hagen, K.B. & Röser, M. 2012. Stipa (Poaceae) and allies in the Old World: molecular phylogenetics realigns genus circumscription and gives evidence on the origin of American and Australian lineages.Plant Systematics and Evolution 298(2): 351–367. DOI: 10.1007/s00606-011-0549-5 Reference page.

2020年8月14日 · Here we explore the potential for natural hybridisation in Stipa (one of the largest genera in Poaceae) between genetically distant species at their distribution edges in Mountains of Central...