William Henry Blanchard

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Rubus vermontanus is a North American species of bristleberry in section Setosi of the genus Rubus, a member of the rose family. It is found in eastern and central Canada (Québec, Ontario, Newfoundland, and all 3 Maritime Provinces) and the northeastern and north-central United States (Minnesota, Wisconsin, Michigan, Pennsylvania, New York, and all 6 New England States).

Rubus semisetosus is a North American species of bristleberry in section Setosi of the genus Rubus, a member of the rose family. It grows in the Canadian Province of Nova Scotia as well as in the northeastern and north-central United States from New England to Minnesota.

Rubus recurvans is a North American species of blackberry in the genus Rubus, a member of the rose family. It is found in eastern and central Canada (Québec, Ontario, Nova Scotia) and in the eastern and north-central United States (from Maine west to Minnesota, as far south as Missouri, the Ohio River, and Virginia).

Rubus biformispinus, the pasture dewberry, is an uncommon North American species of flowering plant in the rose family. It is found in eastern and central Canada (from Ontario to Nova Scotia) and the northeastern United States (Maine, New York, Pennsylvania). The epithet biformispinus means "with spines of two shapes," referring to the two distinct sizes of prickles on the stems. The genetics of Rubus is extremely complex, so that it is difficult to decide on which groups should be recognized as species. There are many rare species with limited ranges such as this. Further study is suggested

Rubus andrewsianus, common name Andrews' blackberry, is an uncommon North American species of flowering plant in the rose family. It is found in scattered locations in the northeastern and east-central United States (Massachusetts, Connecticut, New York, New Jersey, Pennsylvania, Maryland, West Virginia). The genetics of Rubus is extremely complex, so that it is difficult to decide on which groups should be recognized as species. There are many rare species with limited ranges such as this. Further study is suggested to clarify the taxonomy.

Rubus trifrons is a rare North American species of flowering plant in the rose family. It has been found only in eastern Canada (Québec and Nova Scotia) and the northeastern United States (New York, New Hampshire, Vermont). The genetics of Rubus is extremely complex, so that it is difficult to decide on which groups should be recognized as species. There are many rare species with limited ranges such as this. Further study is suggested to clarify the taxonomy. Some studies have suggested that R. trifrons may have originated as a hybrid between R. setosus and R. hispidus.

Rubus recurvicaulis is an uncommon North American species of flowering plant in the rose family. It grows in eastern and central Canada (Ontario, Québec, New Brunswick, Nova Scotia, Newfoundland) and the north-central and northeastern United States (Minnesota, Ohio, Pennsylvania, New Jersey, New York, and the 6 New England states). The genetics of Rubus is extremely complex, so that it is difficult to decide on which groups should be recognized as species. There are many rare species with limited ranges such as this. Further study is suggested to clarify the taxonomy. Some studies have

Rubus philadelphicus is an uncommon North American species of brambles in the rose family. It has been found in the eastern United States, primarily in the Appalachian Mountains of Pennsylvania and West Virginia. Rubus philadelphicus is a prickly shrub with arching canes, slightly prickly. Fruit is fleshy and by all accounts good-tasting. The genetics of Rubus is extremely complex, so that it is difficult to decide on which groups should be recognized as species. There are many rare species with limited ranges such as this. Further study is suggested to clarify the taxonomy.

Rubus permixtus is a North American species of dewberry in the genus Rubus, a member of the rose family. It grows in scattered locations in the north-central and northeastern United States, from Maine south as far as West Virginia plus Michigan and Wisconsin. Nowhere is it very common. Rubus permixtus is a nearly prostrate shrub that runs along the ground as much as 6 feet (180 cm), with vertical stems arising from those on the ground. Fruits are generally black, sweet, and edible.

Rubus pensilvanicus, known commonly as Pennsylvania blackberry, is a prickly bramble native to eastern and central North America from Newfoundland south to Georgia, west as far as Ontario, Minnesota, Nebraska, Missouri, and Arkansas. The species is also established as a naturalized plant in California. Rubus pensilvanicus is a prickly shrub up to 3 meters (10 feet) tall. The canes are green at first but then turn dark red, usually ridged, with copious straight prickles. The leaves are palmately compound, usually bearing 5 or 7 leaflets. The flowers are white with large petals, borne in

Rubus multiformis is an uncommon North American species of flowering plant in the rose family. It is found in eastern Canada (New Brunswick, Nova Scotia) and the northeastern and north-central United States (Maine, Vermont, New York, Michigan, Wisconsin). The genetics of Rubus is extremely complex, so that it is difficult to decide on which groups should be recognized as species. There are many rare species with limited ranges such as this. Further study is suggested to clarify the taxonomy. Some studies have suggested that R. multiformis may have originated as a hybrid between R. setosus and

Rubus junceus is a North American species of flowering plants in the rose family. It has been found in Nova Scotia and also in the northeastern and north-central United States (Minnesota, Wisconsin, Michigan, Maine, New Hampshire, and Vermont). The genetics of Rubus is extremely complex, so that it is difficult to decide on which groups should be recognized as species. There are many rare species with limited ranges such as this. Further study is suggested to clarify the taxonomy.

Rubus jacens is a rare species of flowering plant in the rose family. It is native to eastern Canada (Ontario, Québec, Nova Scotia) and the north-eastern United States (New Hampshire, Vermont, New York, Pennsylvania). The genetics of Rubus is extremely complex, so that it is difficult to decide on which groups should be recognized as species. There are many rare species with limited ranges such as this. Further study is suggested to clarify the taxonomy. Some studies have suggested that R. jacens may have originated as a hybrid between R. setosus and R. hispidus.

Rubus elegantulus, the showy blackberry, is an uncommon North American species of flowering plant in the rose family. It grows in the northeastern and north-central United States (from Maine to West Virginia, plus Wisconsin and Minnesota) and eastern Canada (Québec, Newfoundland, and all 3 Maritime Provinces). Rubus elegantulus is an erect perennial 2–4 feet (30–120 cm) tall, with prickles but no hairs. Leaves are palmately compound with 5 leaflets, slightly darker on the upper surface than on the lower. Fruits are black, nearly spherical. The genetics of Rubus is extremely complex, so that

Rubus cubitans, the sprawling dewberry, is a rare North American species of flowering plant in the rose family. It has been found only in the State of Vermont in the northeastern United States. Rubus cubitans is a trailing biennial with first-year stems running along the surface of the ground. Stems have very few prickles. Leaves are hairless, palmately compound with 5 leaflets. Second-year stems are erect, zigzag branches with trifoliate leaves and an array of flowers at the top. Fruit is black and spherical. The genetics of Rubus is extremely complex, so that it is difficult to decide on

Rubus arenicola, the sanddwelling dewberry, is an uncommon North American species of flowering plant in the rose family. It is found in eastern Canada (Nova Scotia) and the northeastern United States (New York, Massachusetts, Maine, New Hampshire, Rhode Island). The genetics of Rubus is extremely complex, so that it is difficult to decide on which groups should be recognized as species. There are many rare species with limited ranges such as this. Further study is suggested to clarify the taxonomy.

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Rubus frondisentis is an uncommon North American species of flowering plant in the rose family. It has been found in Québec and in the northeastern United States (Maine, New Hampshire, Vermont, New York). The genetics of Rubus is extremely complex, so that it is difficult to decide on which groups should be recognized as species. There are many rare species with limited ranges such as this. Further study is suggested to clarify the taxonomy. Some studies have suggested that R. frondisentis may have originated as a hybrid between R. allegheniensis and R. setosus.

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Rubus flavinanus is a rare North American species of flowering plant in the rose family. It has been found only in the eastern United States primarily in the Appalachian Mountains of eastern West Virginia and western Maryland, but with a few populations in southern Vermont. The genetics of Rubus is extremely complex, so that it is difficult to decide on which groups should be recognized as species. There are many rare species with limited ranges such as this. Further study is suggested to clarify the taxonomy. Some studies have suggested that R. flavinanus may have originated as a hybrid

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