Burke: Rosa rubiginosa vs. Rosa gymnocarpa

	Rosa rubiginosa	Rosa gymnocarpa
	sweetbrier rose, small-flowered sweetbrier	bald-hip rose
Habit	Coarse shrub 1-2 m. tall, with well-developed, flattened, unequal, strongly curved or hooked prickles, the foliage sweetly aromatic.	Slender, lax shrubs 3-13 dm. tall, usually bristly with slender prickles, occasionally unarmed.
Leaves	Leaves alternate, deciduous, odd-pinnate with 5-7 firm leaflets; leaflets broadly elliptic to sub-orbicular, 1-2.5 cm. long, doubly serrate with gland-tipped teeth, the lower surface with stalked glands and hairs.	Leaves alternate, deciduous, odd-pinnate with 5-9 leaflets, with stalked glands on the leaf rachis; leaflets elliptic to elliptic-ovate, 1-4 cm. long and 0.5-3 cm. wide, doubly serrate, the teeth gland-tipped, otherwise glabrous.
Flowers	Flowers in small clusters or solitary, on short, stout, glandular-bristly pedicels; sepals 5,1-2 cm. long, with stalked glands and some slender lateral lobes, spreading, deciduous at maturity; petals 5, 1.5-2 cm. long, bright pink; stamens numerous; pistils many, the styles densely short-hairy.	Flowers small, scattered at branch ends, usually solitary, the pedicel slender, glandular; sepals 5, 5-12 mm. long, broadly lanceolate at the base contracted to a slender, tailed tip, early-deciduous; petals 5, 1-1.5 cm. long, light pink to deep rose; stamens numerous, pistils many, the styles early-deciduous.
Fruits	Hips sub-globose or ovoid, 1-1.5 cm. long, glabrous, bright red.	Hips 1 cm. long, pear-shaped, scarlet or vermillion; sepals early deciduous and not present on mature fruits.

	Rosa rubiginosa	Rosa gymnocarpa
Flowering time	June-July	May-July
Habitat	Roadsides, thickets, shorelines, pastures, and other disturbed, open areas.	Dry to moist woods, forest edge, and thickets, from sea level to middle elevations in the mountains.
Distribution	Occurring on both sides of the Cascades crest in Washington, though more common west of the crest; southern British Columbia to California, east to Idaho, Montana, Wyoming, and Colorado, further east from the Great Plains to the Atlantic Coast. [WildflowerSearch map] [BONAP county map]	Occurring on both sides of the Cascades crest in Washington, though more common west of the crest; British Columbia to California, east to Montana. [WildflowerSearch map] [BONAP county map]
Origin	Introduced Eurasia and northern Africa	Native
Conservation status	Not of concern	Not of concern
Sibling taxa	R. canina, R. gymnocarpa, R. multiflora, R. nutkana, R. pisocarpa, R. rugosa, R. woodsii	R. canina, R. multiflora, R. nutkana, R. pisocarpa, R. rubiginosa, R. rugosa, R. woodsii
Web links	Local floras: CA, OR, WA Local Web sites: CalFlora, CalPhotos, Flora NW, PNW Herbaria WildflowerSearch iNaturalist (observations) USDA Plants Database LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search	Local floras: BC, CA, OR, WA Local Web sites: CalFlora, CalPhotos, Flora NW, PNW Herbaria, Turner Photog. WildflowerSearch iNaturalist (observations) USDA Plants Database LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search

Rosa gymnocarpa

sweetbrier rose, small-flowered sweetbrier

bald-hip rose

Habit

Coarse shrub 1-2 m. tall, with well-developed, flattened, unequal, strongly curved or hooked prickles, the foliage sweetly aromatic.

Slender, lax shrubs 3-13 dm. tall, usually bristly with slender prickles, occasionally unarmed.

Leaves

Leaves alternate, deciduous, odd-pinnate with 5-7 firm leaflets;

leaflets broadly elliptic to sub-orbicular, 1-2.5 cm. long, doubly serrate with gland-tipped teeth, the lower surface with stalked glands and hairs.

Leaves alternate, deciduous, odd-pinnate with 5-9 leaflets, with stalked glands on the leaf rachis;

leaflets elliptic to elliptic-ovate, 1-4 cm. long and 0.5-3 cm. wide, doubly serrate, the teeth gland-tipped, otherwise glabrous.

Flowers

Flowers in small clusters or solitary, on short, stout, glandular-bristly pedicels;

sepals 5,1-2 cm. long, with stalked glands and some slender lateral lobes, spreading, deciduous at maturity;

petals 5, 1.5-2 cm. long, bright pink;

stamens numerous;

pistils many, the styles densely short-hairy.

Flowers small, scattered at branch ends, usually solitary, the pedicel slender, glandular;

sepals 5, 5-12 mm. long, broadly lanceolate at the base contracted to a slender, tailed tip, early-deciduous;

petals 5, 1-1.5 cm. long, light pink to deep rose;

stamens numerous, pistils many, the styles early-deciduous.

Fruits

Hips sub-globose or ovoid, 1-1.5 cm. long, glabrous, bright red.

Hips 1 cm. long, pear-shaped, scarlet or vermillion;

sepals early deciduous and not present on mature fruits.

Rosa gymnocarpa

Flowering time

June-July

May-July

Habitat

Roadsides, thickets, shorelines, pastures, and other disturbed, open areas.

Dry to moist woods, forest edge, and thickets, from sea level to middle elevations in the mountains.

Distribution

Occurring on both sides of the Cascades crest in Washington, though more common west of the crest; southern British Columbia to California, east to Idaho, Montana, Wyoming, and Colorado, further east from the Great Plains to the Atlantic Coast.

[WildflowerSearch map]

[BONAP county map]