Native California Roses
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copyright Barbara Ertter, 2001
Rosa pisocarpaA. Gray
"Cluster Rose"
Prickles few, sometimes nearly lacking, paired at nodes, straight, somewhat thick-based. Often whitely contrasting with dark stems.
(Photo copyright Barbara Ertter, 2001;
voucher: Ertter 15007, Rough & Ready Creek, Josephine Co., Oregon, USA)