from The Century Dictionary.
- noun A genus of polypetalous shrubs and trees, including the buckthorn, type of the order Rhamnaceæ and of the tribe Rhamneæ.
from the GNU version of the Collaborative International Dictionary of English.
- noun (Bot.) A genus of shrubs and small trees; buckthorn. The California
Rhamnus Purshianusand the European Rhamnus catharticusare used in medicine. The latter is used for hedges.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun type genus of the Rhamnaceae: buckthorns
Sorry, no etymologies found.
These ancient redwood forests and their tree-tops support myriad lichens, bryophytes and mosses as well as other vascular plants like salmonberry, huckleberry and Rhamnus trees growing some 240 feet above the earth.
Among the shrubs are Crataegus monogyna, Euonimus europea, Cornus mas, C. sanguinea, Rhamnus frangula, R. catharctica, Viburnum opulus, Berberis vulgaris, Hippophae rhamnoides, Tamarix spp. and occasional Corylus avellana.
London 157 (1944 – 1945): 46 – 54; “The genus Rhamnus in Palestine.”
The brushwoods, with participation of different species Cerasus, Rhamnus, Spiraea, and Cotoneaster are varied.
These relict forests include many Tertiary relict species such as Laurus nobilis, Arbutus unedo, Rhamnus alaternus, as well as several fern species, such as Woodwardia radicans, Culcita macrocarpa, and Stennograma pozoi.
The coastal plains of Palestine and the upper Jordan Valley are dominated by Hyparrhenia birta grasslands, with scattered thorny shrubs and small trees such as Paliurus spina-christii, Rhamnus palaestinus, Rhus tripartita, and Anagyris foetida.
Scrublands and the understory of drier more open forest stands support thorny shrubs such as Daurian buckthorn (Rhamnus dahuricus), hawthorn (Crataegus pinnatifida), and Daurian rose (Rosa dahurica).
It is the fruit (Nabak classically Nabik) of Rhamnus Nabeca (or Sidrat) also termed Zizyphus Jujuba, seu Spina Christi because fabled to have formed the crown of thorns: in the English market this plum is called Chinese Japonica.
Spiny (Paliurus spina-christi) is a major understory shrub, as are Jasminum fruticans, Berberis iberica, Rhamnus pallasii, Cerasus spp., etc.
Small shrub species such as Lavandula dentata, Lycium intricatum, Calicotome villosa, Osyris lanceolata, Jasminum fruticans, and Rhamnus oleoides characterize open woodlands and more degraded shrublands.