Burke: Rubus spectabilis vs. Rubus pensilvanicus

	Rubus spectabilis	Rubus pensilvanicus
	salmonberry	Pennsylvania blackberry
Habit	Rhizomatous, thicket-forming, woody perennial 1-3 m. tall, the stems bristly at least below, the bark brown and shredding.
Leaves	Leaves trifoliate, the leaflets ovate, nearly glabrous, doubly serrate, the terminal one 4-9 cm. long, the others smaller, often lobed.
Flowers	Flowers 1-2 on short leafy branches; calyx pubescent, the 5 lobes ovate-lanceolate, pointed, spreading, 9-15 mm. long; petals 5, purplish-red, obovate-elliptic, half again as long as the sepals; stamens 75-100; pistils numerous.
Fruits	Drupelets yellow to reddish, weakly coherent, coming free from the receptacle.

	Rubus spectabilis	Rubus pensilvanicus
Flowering time	March-June	May-July
Habitat	Lowland moist woods and swamps to middle elevations in the mountains.	Damp slopes, dry forests, and thickets.
Distribution	Occurring chiefly west of the Cascades crest in Washington; Alaska to California, disjunct in northern Idaho. [WildflowerSearch map] [BONAP county map]	Occurring west of the Cascades crest in Washington; British Columbia to California also occurring in western Idaho; otherwise in central and eastern North America, where native. [WildflowerSearch map] [BONAP county map]
Origin	Native	Introduced
Conservation status	Not of concern	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. ulmifolius, R. ursinus, R. vestitus	R. allegheniensis, R. arcticus, R. bifrons, R. idaeus, R. laciniatus, R. lasiococcus, R. leucodermis, R. nigerrimus, R. nivalis, R. parviflorus, R. pedatus, R. pubescens, R. spectabilis, R. ulmifolius, R. ursinus, R. vestitus
Web links	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	Local floras: CA, 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

Rubus spectabilis

Rubus pensilvanicus

salmonberry

Pennsylvania blackberry

Habit

Rhizomatous, thicket-forming, woody perennial 1-3 m. tall, the stems bristly at least below, the bark brown and shredding.

Leaves

Leaves trifoliate, the leaflets ovate, nearly glabrous, doubly serrate, the terminal one 4-9 cm. long, the others smaller, often lobed.

Flowers

Flowers 1-2 on short leafy branches;

calyx pubescent, the 5 lobes ovate-lanceolate, pointed, spreading, 9-15 mm. long;

petals 5, purplish-red, obovate-elliptic, half again as long as the sepals;

stamens 75-100;

pistils numerous.

Fruits

Drupelets yellow to reddish, weakly coherent, coming free from the receptacle.

Rubus spectabilis

Rubus pensilvanicus

Flowering time

March-June

May-July

Habitat

Lowland moist woods and swamps to middle elevations in the mountains.

Damp slopes, dry forests, and thickets.

Distribution

Occurring chiefly west of the Cascades crest in Washington; Alaska to California, disjunct in northern Idaho.

[WildflowerSearch map]

[BONAP county map]

Occurring west of the Cascades crest in Washington; British Columbia to California also occurring in western Idaho; otherwise in central and eastern North America, where native.

[WildflowerSearch map]

[BONAP county map]

Origin

Native

Introduced

Conservation status

Not of concern

Sibling taxa