BSI Flora of India Checklist (Distribution):
Asperula oppositifolia Regel & Schmalh.
var. oppositifolia (Himachal Pradesh, Jammu & Kashmir)
var. pseudocynanchica Ehrend. (Himachal Pradesh, Jammu & Kashmir) (No distrbution shown in India as per POWO)
var. grandiflora Ehrend. (Himachal Pradesh, Jammu & Kashmir) (No distrbution shown in India as per POWO)
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Species with description & keys from Flora of Pakistan (Distribution):
Asperula glomerata (M. Bieb.) Griseb. (Turkey, Turcomania, Transcaucasia, Afghanistan, Iran and Pakistan)
Asperula karataviensis Pavl. (Central Asia, Pamir-Alai to Pakistan)
Asperula oppositifolia Reg. & Schmalh. (six subspecies)
Asperula oppositifolia subsp. albiflora (M. Pop.) M. Pop. (Central Asia, Afghanistan and Pakistan (Gilgit and Kaghan))
Asperula oppositifolia subsp. baltistanica Nazim. (Pakistan (Hunza, Gilgit))
Asperula oppositifolia subsp. cabulica Ehrend. in Koie & Rech. f. (Afghanistan and Pakistan)
Asperula oppositifolia subsp. grandiflora Ehrend. in Kole & Rech. f. (Afghanistan to Kashmir)
Asperula oppositifolia Subsp. oppositifolia Reg. & Schmalh. (not found in Pakistan; distributed mainly in Central Asia (Turkestan))
Asperula oppositifolia subsp. pseudocynanchica Ehrend. in Koie & Rech. L (Afghanistan and Pakistan)
Asperula setosa Jaub. & Spach (Mediterranean Region, Caucasus, Central Asia, Iran, Afghanistan and Pakistan (Chitral))
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Some species found in India with description & keys from Flora of China (Distribution):
Asperula oppositifolia Regel & Schmalhausen in Regel (Gravel on mountain slopes; ca. 3700 m. Xizang (Zanda) [Afghanistan, Pakistan, Tajikistan])
