Burke: Rubus bartonianus vs. Rubus idaeus

	Rubus bartonianus	Rubus idaeus
		red raspberry
Habit		Strong perennial 1-2 m. tall, more or less bristly and prickly, otherwise glabrous or pubescent, the bark yellow to cinnamon-brown, peeling.
Leaves		Leaves alternate, usually trifoliate, the leaflets ovate-oblong to broadly lanceolate, 4-10 cm. long, irregularly biserrate, green and glabrous on the upper surface, usually gray-woolly beneath.
Flowers		Flowers several, 1-4 per axil, forming a leafy, racemose inflorescence; calyx somewhat woolly to bristly-glandular, the 5 lobes reflexed, lanceolate, 4-8 mm. long; petals 5, white, ascending, narrowly oblong, 4-6 mm. long; stamens 75-100, glabrous; pistils numerous, styles slender
Fruits		Drupelets weakly coherent to form a red raspberry, finely short-woolly.

	Rubus bartonianus	Rubus idaeus
Flowering time		May-July
Habitat		Wet or dry woodland to open and often rocky mountain slopes.
Distribution	[WildflowerSearch map] [BONAP county map]	Occurring chiefly east of the Cascades crest in Washington; Alaska to California, east across most of North America to the Atlantic Coast. [WildflowerSearch map] [BONAP county map]
Origin		Native
Conservation status		Not of concern
Sibling taxa	R. allegheniensis, R. arcticus, R. bifrons, R. idaeus, R. laciniatus, R. lasiococcus, R. leucodermis, R. nigerrimus, R. nivalis, R. parviflorus, R. pedatus, R. pensilvanicus, R. pubescens, R. spectabilis, R. ulmifolius, R. ursinus, R. vestitus	R. allegheniensis, R. arcticus, R. bifrons, R. laciniatus, R. lasiococcus, R. leucodermis, R. nigerrimus, R. nivalis, R. parviflorus, R. pedatus, R. pensilvanicus, R. pubescens, R. spectabilis, R. ulmifolius, R. ursinus, R. vestitus
Subordinate taxa		R. idaeus ssp. idaeus, R. idaeus ssp. strigosus
Web links	Local floras: OR Local Web sites: 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, OR, WA Local Web sites: 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

Rubus bartonianus

Rubus idaeus

red raspberry

Habit

Strong perennial 1-2 m. tall, more or less bristly and prickly, otherwise glabrous or pubescent, the bark yellow to cinnamon-brown, peeling.

Leaves

Leaves alternate, usually trifoliate, the leaflets ovate-oblong to broadly lanceolate, 4-10 cm. long, irregularly biserrate, green and glabrous on the upper surface, usually gray-woolly beneath.

Flowers

Flowers several, 1-4 per axil, forming a leafy, racemose inflorescence;

calyx somewhat woolly to bristly-glandular, the 5 lobes reflexed, lanceolate, 4-8 mm. long;

petals 5, white, ascending, narrowly oblong, 4-6 mm. long;

stamens 75-100, glabrous;

pistils numerous, styles slender

Fruits

Drupelets weakly coherent to form a red raspberry, finely short-woolly.