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'R. chinensis spontanea' rose References
Article (magazine)  (2011)  Page(s) 158.  
 
Table 1 The main morphological characters, distribution information, and chromosome number of varieties of R. odorata and R. chinensis, with respective names taken from Hurst's (1941) descriptions
R. chinensis var. spontanea; [Ploidy] - ; Single; Red; Native in Guihou, Hubei; Sichuan
Booklet  (2009)  Page(s) 28.  
 
Diploid....R. chinensis var. spontanea, heterozygous loci 43% [Provenance: Quarry Hill Botanical Garden, Glen Ellen, CA: Sichuan Province 1988.237]
R. chinensis var. spontanea, heterozygous loci 36% [Provenance: Quarry Hill Botanical Garden, Glen Ellen, CA: Sichuan Province 2001.226]
Article (magazine)  (2008)  Page(s) 5931.  
 
Among PME [phenolic methyl ether]-producing roses, R. chinensis spontanea exhibits unique scent characteristics. indeed, this very rare wild species, found only twice over a period of one century, produces large amounts of TMB [1,3,5-trimethoxybenzene] (60% of volatiles) and no DMT [3,5-dimethoxytoluene].
Article (magazine)  (2007)  Page(s) 370, fig. 1.  
 
R. chinensis var. spontanea typical ploidy 2x, 3x, 4x
Article (magazine)  (2007)  Page(s) 404.  
 
Table 1. Comparison of key volatile components in representative cultivated Chinese roses and species. [adsorption volume by Solid Phase Microextraction (peak area, x10')]
DMMB: 1,3-dimethoxy-5-methylbenzene
TMB: 1,3,5-trimehoxybenzene

R. chinensis var. spontanea
Dihydro-beta-ionone 0.06
DMMB 0.05
TMB 95.5
Article (magazine)  (2007)  Page(s) 401.  
 
It is found that TMB [1,3,5-trimethyloxybenzene] originated from R. chinensis var. spontanea and is also known to have a sedative effect (Shoji et al., 2000).
Article (magazine)  (2005)  Includes photo(s).
 
Martyn Rix traces the history of botanists' documentation of this rose, starting with E.H. Wilson in Plantae Wilsonianae in 1914 through Flora of China. He discusses R. lucidissima Léveillé, which is included as a distinct species in Flora of China. Rix posits that R. lucidissima Léveillé is a form of R. chinensis f. spontanea in which all leaves have only three leaflets. Rix also chooses to assign the name R. chinensis f. spontanea rather than var. spontanea.
Propagation is best done by cuttings as seed often takes 3 years to germinate.
NW China; Sichuan, Gansu, Hubei, Guizhou.
Book  (May 2003)  
 
Rosa chinensis var. spontanea (Rehder & E. H. Wilson) T.T.Yu & T.C. Ku in T. T. Yü, Fl. Reipubl. Popularis Sin. 37: 423. 1985.
dan ban yue ji hua
Rosa chinensis f. spontanea Rehder & E. H. Wilson in Sargent, Pl. Wilson. 2: 320. 1915.
Branches with broad prickles. Flowers single, often solitary. Leaflets 3-5. Petals red. Sepals often entire, rarely with a few lobes.
Native in Guizhou, Hubei, Sichuan.
Article (magazine)  (2001)  Page(s) 393.  
 
R. chinensis Jacq. var. spontanea (Rehd. et Wils.) Yu et Ku Ploidy 2x
Pollen fertility 99.3%
Selfed Fruit set 0%
Book  (Jun 1992)  
 
Henry's Crimson China (A. Henry, 1885) syn. R. chinensis spontanea "Four to twenty feet in height (ca. 1.25-6 m) ...crimson, pink, or white." (Hk)
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