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''Rosa sericea'', the silky rose, is a species of flowering plant. The closely related ''
Rosa omeiensis ''Rosa omeiensis'' is a species of Rose, ''Rosa'' native to central and southwestern China in the provinces of Gansu, Guizhou, Hubei, Ningxia, Qinghai, Shaanxi, Sichuan, Xizang, and Yunnan; it grows in mountains at altitudes of 700 to 4,400 m. I ...
'' is sometimes treated as a
subspecies In biological classification In biology Biology is the natural science that studies life and living organisms, including their anatomy, physical structure, Biochemistry, chemical processes, Molecular biology, molecular interacti ...
of ''R. sericea''.


Distribution

It is native to south-western China (
Guizhou Guizhou (; alternately Kweichow) is a landlocked province A province is almost always an administrative division Administrative division, administrative unitArticle 3(1). , country subdivision, administrative region, subnational enti ...

Guizhou
,
Sichuan Sichuan (; , ; alternatively romanized as Szechuan or Szechwan) is a landlocked province A province is almost always an administrative division Administrative division, administrative unitArticle 3(1). , country subdivision, admini ...

Sichuan
,
Xizang The Tibet Autonomous Region (TAR) or Xizang Autonomous Region, often shortened to Tibet or Xizang, is a province A province is almost always an administrative division Administrative division, administrative unitArticle 3(1). , count ...

Xizang
,
Yunnan Yunnan () is a landlocked Provinces of China, province in Southwest China, the southwest of the People's Republic of China. The province spans approximately and has a population of 48.3 million (as of 2018). The capital of the province is Ku ...

Yunnan
),
Bhutan Bhutan (; dz, འབྲུག་ཡུལ་, Druk Yul, ), officially known as the Kingdom of Bhutan ( dz, འབྲུག་རྒྱལ་ཁབ་, Druk Gyal Khap), is a landlocked country in the Eastern Himalayas. It is bordered by Chin ...

Bhutan
, northern India (
Sikkim Sikkim (; ) is a state State may refer to: Arts, entertainment, and media Literature * ''State Magazine'', a monthly magazine published by the U.S. Department of State * The State (newspaper), ''The State'' (newspaper), a daily newspaper in ...

Sikkim
), Nepal and Myanmar; it grows in mountains at altitudes of .


Description

It is a
shrub A shrub (often called a bush) is a small- to medium-sized perennial A perennial plant or simply perennial is a plant Plants are predominantly photosynthetic eukaryotes of the Kingdom (biology), kingdom Plantae. Historically, the p ...

shrub
growing tall and is often very spiny. The
leaves A leaf (plural leaves) is the principal lateral appendage of the vascular plant plant stem, stem, usually borne above ground and specialized for photosynthesis. The leaves, stem, flower and fruit together form the shoot system. Leaves are ...

leaves
are
deciduous In the fields of horticulture Horticulture is the art of cultivating plants in gardens to produce food and medicinal ingredients, or for comfort and ornamental purposes. Horticulturists are agriculturists who grow flowers, fruits and nuts, ...
, long, with 7–11
leaflets Leaflet may refer to: * Leaflet (botany), part of a compound leaf * Leaflet (software), a Javascript library * Pamphlet, a type of publication ** Folded leaflet ** Flyer (pamphlet) ** Airborne leaflet propaganda * Cusps of heart valves, also known a ...
with a serrated margin. The
flower A flower, sometimes known as a bloom or blossom Image:Cerisier du Japon Prunus serrulata.jpg, Cherry blossoms in Paris in full bloom. In botany, blossoms are the flowers of stone fruit fruit tree, trees (genus ''Prunus'') and of some other plan ...

flower
s are diameter, white, with (unusually for a rose) only four petals. The
hips In vertebrate anatomy, hip (or "coxa"Latin ''coxa'' was used by Celsus in the sense "hip", but by Pliny the Elder in the sense "hip bone" (Diab, p 77) in medical terminology) refers to either an anatomical region or a joint. The hip region is ...

hips
are red, diameter, with persistent sepals, and often bristly.


Forms

There are four formae: * ''Rosa sericea'' f. ''sericea'' * ''Rosa sericea'' f. ''glandulosa'' T.T.Yü & T.C.Ku. * ''Rosa sericea'' f. ''glabrescens'' Franchet. * ''Rosa sericea'' f. ''pteracantha'' Franchet.


Cultivation and uses

''Rosa sericea'' f. ''pteracantha'' is grown as an
ornamental plant Ornamental plants or garden plants are plants Plants are predominantly photosynthetic Photosynthesis is a process used by plants and other organisms to Energy transformation, convert light energy into chemical energy that, through cel ...

ornamental plant
for its large, bright red thorns.


Gallery

Rosa sericea pteracantha shrub.jpg, A shrub of ''Rosa sericea'' f. ''pteracantha'' Rosa Sericea Subsp Omeiensis Forma Pteracantha- Winged Thorn Rose.jpg, Winged thorn rose detail


References

sericea Flora of China Flora of Asia Flora of Nepal {{Rosa-stub