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Plants A-Z

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Common Name | Botanical Name

Rhizomatous Begonia

Begonia

Like rex begonias, these growfrom a rhizome. Although somehave handsome flowers, theyare grown primari...

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Phalaris arundinacea picta

Ribbon Grass

Phalaris arundinacea picta

Native to North America, Eurasia. Tough, tenacious grass; forms a 2- to 3-ft.-high clump that spreads ...

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River Birch

Betula nigra

Native to stream banks and lowlands in eastern North America. Very fast growth in early years; eventua...

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River She-Oak

Casuarina cunninghamiana

Largest species. To 70 ft. tall, 30 ft.wide. Finest texture, with dark green branches.

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Cotoneaster horizontalis

Rock Cotoneaster

Cotoneaster horizontalis

Grows 2 to 3 ft. tall, 15 ft. wide, with stiff horizontal branches and many branchlets set in a herrin...

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Rock Penstemon

Penstemon rupicola

Native to Cascades and Siskiyou Mountains. Woody-based growth to 4 in. high, 1 1/2 ft. wide, with trai...

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Cistus

Rockrose

Cistus

Mediterranean natives; hardy to 15°F/°9°C. Grown with borderline success in Zones 4, 5. In...

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Rocky Mountain Columbine

Aquilegia caerulea

Native to the Rockies; state flower of Colorado. To 1 1/2–3 ft. high, 2 ft. wide. Blue and white...

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Rocky Mountain juniper

Juniperus scopulorum

Native from British Columbia south to Arizona and Texas. Grows 30 ft. tall with green or gray-green, s...

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Rocky Mountain Maple

Acer glabrum

Shrub or tree. Multitrunked clumps may be only 6 ft. tall or up to 30 ft. under ideal conditions. Slen...

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Rocky Mountain Maple

Acer glabrum douglasii

Grows along the shores of southeastern Alaska, south into Canada and parts of the Pacific Northwest an...

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Rocky Mountain Penstemon

Penstemon strictus

Native from southern Wyoming to Arizona and New Mexico. To 2–3 ft. tall, 2 ft.wide. Dark green l...

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