Ruud de Block:
Rosa subcanina (Christ) Dalla Torre & Sarnth. (nothosect. Caninae - subsect. Caninae) - Schijnhondsroos - BG Meise
Ruud de Block:
Rosa subcanina (Christ) Dalla Torre & Sarnth. (nothosect. Caninae - subsect. Caninae) - Schijnhondsroos - BG Meise
Ruud de Block:
Rosa stylosa Desv. (nothosect. Caninae - subsect. Caninae) - Stijlroos - BG Meise
Ruud de Block:
Rosa stylosa Desv. (nothosect. Caninae - subsect. Caninae) - Stijlroos - BG Meise
Ruud de Block:
Rosa stylosa Desv. (nothosect. Caninae - subsect. Caninae) - Stijlroos - BG Meise
Ruud de Block:
Rosa stylosa Desv. - Zuilroos - BG Meise
Ruud de Block:
Rosa stellata Woot. (sect. Hesperhodos) - BG Meise
Ruud de Block:
Rosa stellata Woot. (sect. Hesperhodos) - BG Meise
Ruud de Block:
Rosa stellata Woot. (sect. Hesperhodos) - BG Meise
Ruud de Block:
Rosa spinosissima L. (sect. Rosa) - Duinroos - BG Meise
Ruud de Block:
Rosa spinosissima L. (sect. Rosa) - Duinroos - BG Meise
Ruud de Block:
Rosa sikangensis T. T. Yu & T. C. Ku (sect. Sericeae) - BG Meise
Ruud de Block:
Rosa sikangensis T. T. Yu & T. C. Ku (sect. Sericeae) - BG Meise
Ruud de Block:
Rosa sikangensis T. T. Yu & T. C. Ku (sect. Sericeae) - BG Meise
Ruud de Block:
Rosa sicula Tratt. (of Rosa pulverulenta M. Bieb.) (nothosect. Caninae - subsect. Rubigineae) - Siciliaanse roos - BG Meise
Ruud de Block:
Rosa sicula Tratt. (of Rosa pulverulenta M. Bieb.) (nothosect. Caninae - subsect. Rubigineae) - Siciliaanse roos - BG Meise
Ruud de Block:
Rosa sicula Tratt. (of Rosa pulverulenta M. Bieb.) (nothosect. Caninae - subsect. Rubigineae) - Siciliaanse roos - BG Meise
Ruud de Block:
Rosa sherardii Davies (nothosect. Caninae - subsect. Vestitae) - Berijpte viltroos - BG Meise
Ruud de Block:
Rosa sherardii Davies (nothosect. Caninae - subsect. Vestitae) - Berijpte viltroos - BG Meise
Ruud de Block:
Rosa setigera Michx. (sect. Synstylae) - Prairie roos - BG Meise
Ruud de Block:
Rosa setigera Michx. (sect. Synstylae) - Prairie roos - BG Meise
Ruud de Block:
Rosa sericea Lindl. (sect. Sericeae) - BG Meise
Ruud de Block:
Rosa sericea Lindl. (sect. Sericeae) - BG Meise
Ruud de Block:
Rosa sericea Lindl. (sect. Sericeae) - BG Meise
Ruud de Block:
Rosa serafinii Viv. (nothosect. Caninae - subsect. Rubigineae) - Serafin's roos - BG Meise
Ruud de Block:
Rosa serafinii Viv. (nothosect. Caninae - subsect. Rubigineae) - Serafin's roos - BG Meise
Ruud de Block:
Rosa sempervirens L. (sect. Synstylae) - Groenblijvende roos - BG Meise
Ruud de Block:
Rosa sempervirens L. - BG Meise
Ruud de Block:
Rosa sempervirens L. - BG Meise
Ruud de Block:
Rosa sempervirens L. - BG Meise
