Category: Rosales

Belongs within: Roperculina.Contains: Horkelia, Ivesia. Potentilla, cinquefoils, is a northern temperate genus of herbs and shrubs with usually yellow flowers. Flowers are commonly borne in cymes though P. anserina bears solitary flowers from stolons (Hickman 1993). Characters (Hickman 1993): Annual to shrub; odor resinous or absent. Leaves generally basal, odd-1-pinnate to 1-palmate or 1-ternate; leaflets… Continue reading Potentilla

Belongs within: Fabidae.Contains: Rhamnaceae, Elaeagnaceae, Ulmaceae, Urticaceae, Moraceae, Celtidaceae, Crataegus, Cotoneaster, Rosoideae, Spiraeoideae, Prunus, Sorbus, Pyrus. The Rosales are a clade of flowering plants uniting the Rosaceae with members of the previously recognised orders Rhamnales and Urticales. Members of the last group are commonly wind-pollinated. Cecropia, a Neotropical genus of trees with large, circular, palmately… Continue reading Rosales

Belongs within: Rosoideae.Contains: Rubus section Rubus. Rubus is a large cosmopolitan genus of mostly thorny plants, many of them creepers or ramblers. Over 700 species have been described in the genus, but many are difficult to distinguish. Hybrids are common, while some species complexes include apomictic lineages. A number of species, such as the raspberry… Continue reading Rubus

Belongs within: Roperculina. The Sanguisorbeae is a clade within the Rosaceae supported by molecular analysis, defined by Eriksson et al. (2003) as all taxa more closely related to Sanguisorba officinalis than to Rosa cinnamomea, Potentilla reptans or Fragaria vesca. Members of the subtribe Sanguisorbinae are distinguished by the absence of a corolla. The petalous Agrimoniinae… Continue reading Sanguisorbeae

Belongs within: Rosales.Contains: Artocarpus, Castilleae, Ficus. The Moraceae—mulberries, figs and related taxa—are a mostly tropical family of plants bearing compound fruits and with milky sap. Fossil species have been assigned to this family going back to the Upper Cretaceous, though the affinities of pre-Eocene taxa might be considered questionable (Collinson et al. 1993). Noteworthy members of… Continue reading Moraceae

Belongs within: Rhamnaceae. Ceanothus, California lilac, is a North American genus of shrubs and small trees with showy flowers. Twigs are rigid and generally thorny in the species C. cordulatus, C. incanus and C. leucodermis (Hickman 1993). Characters (Hickman 1993): Shrub, small tree, prostrate to erect, thorny or not. Stem with branches generally arranged as leaves. Leaves… Continue reading Ceanothus

Belongs within: Rhamnaceae. Rhamnus, buckthorns, is a genus of shrubs and small trees found primarily in temperate regions with a smaller number of tropical species. Species of subgenus Rhamnus have flowers with petals generally absent and the style exserted, whereas petals are absent and the style is included in subgenus Frangula (Hickman 1993). Characters (Hickman 1993): Shrub, small… Continue reading Rhamnus

Belongs within: Rosales. Prunus is a genus of trees and shrubs native to Eurasia and North America, though several species have become distributed elsewhere through human horticulture. Members of the genus are noted for their fleshy fruits with a central stone. A number of species are significant food plants, such as P. persica (peach), P.… Continue reading Prunus

Belongs within: Rosales. The Celtidaceae, hackberries, are shrubs or trees with unisexual (sometimes bisexual) flowers, drupaceous fruits, a curved embryo, and the cotyledons mostly variously folded (Soepadmo 1977, as Celtideae). In the southeast Asian genus Gironniera, leaves are pinnately nerved with stipules free but overlapping, leaving a circular scar when they fall; other genera usually… Continue reading Celtidaceae