[The Rose Family West of the Cascade Mountains of Oregon and Washington]

Wild Roses West of the Cascade Mountains of Oregon and Washington

The Genus Rosa

 

 


California Rose: Rosa californica -

Dog Rose: Rosa canina - Shrub similar to sweetbriar but not glandular. Prickles hooked or curved. Leaflets more pointed than those of sweetbriar and with sharply serrate margins.

Sweetbrier, Sweet Briar Rose, Sweetbriar Rose, Eglantine Rose: Rosa eglanteria (Synonym: Rosa rubiginosa) - Shrub to 12 feet. Flowers large (quarter-sized) with notched tips. Leaves pinnately compound with small serrations. Stems covered with small thorns.

Little Wild Rose, Bald-hip Rose, Naked-hip Rose, Dwarf Rose, Wood Rose: Rosa gymnocarpa (Synonym: Rosa gymnocarpa var. gymnocarpa) - Shrub to 4 feet tall. Small (quarter sized) pink flowers with 5 petals. Stems armed with many small stickers. Leaves pinnately compound.

Multiflower Rose, Multiflora Rose, Rambler Rose: Rosa multiflora -

Bristly Nootka Rose, Bristly Rose: Rosa nutkana var. hispida (Synonyms: Rosa anatonensis, Rosa caeruleimontana, Rosa columbiana, Rosa jonesii, Rosa macdougalii, Rosa megalantha, Rosa rainierensis, Rosa spaldingii, Rosa spaldingii var. alta, Rosa spaldingii var. chelanensis, Rosa spaldingii var. hispida, Rosa spaldingii var. parkeri) - Shrub to 6 feet tall. Inflorescence of 1-3 large pink flowers with 5 wide petals, the flower being 50-75 mm across. Very fragrant. Stems armed with numerous stickers. Leaves compound pinnate.

Jones' Rose, Nootka Rose: Rosa nutkana var. muriculata (Synonym: Rosa muriculata) -

Nootka Rose: Rosa nutkana var. nutkana (Synonym: Rosa durandii) -

Clustered Wild Rose, Clustered Rose, Peafruit Rose: Rosa pisocarpa (Synonym: Rosa rivalis) - Shrub from 1-2 meters high armed with straight, thin prickles, or sometimes unarmed. Leaflets 5-7 (leaf is pinnately compound), each is 1-8 cm long oblong to ovate in shape and with toothed margins. Flower is 20-30 mm across.

Rugose Rose: Rosa rugosa -

Dwarf Rose, Ground Rose: Rosa spithamea (Synonyms: Rosa spithamea var. solitaria, Rosa spithamea var. spithamea) -

Cascade Rose: Rosa yainacensis (Synonym: Rosa bridgesii) -


Paul Slichter E-mail