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Prunus sect. Prunocerasus is a section of the genus Prunus. Koehne originally described it as comprising the North American plums and placed it in the subgenus Cerasus. The section is now generally recognized as belonging to Prunus subg. Prunus.

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Prunus americana, commonly called the American plum, wild plum, or Marshall's large yellow sweet plum, is a species of Prunus native to North America from Saskatchewan and Idaho south to New Mexico and east to Québec, Maine and Florida.

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Prunus maritima, the beach plum, is a species of plum native to the East Coast of the United States, from Maine south to Maryland. Although sometimes listed as extending to New Brunswick, the species is not known from collections there, and does not appear in the most authoritative works on the flora of that Canadian province.

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Prunus mexicana, commonly known as the Mexican plum, is a North American species of plum tree that can be found in the central United States and Northern Mexico. Its native range stretches from Coahuila and San Luis Potosí north as far as Wisconsin and South Dakota, east to Georgia, Kentucky, and Ohio. Mexican plum is widely cultivated, such as on the west coast of the United States.

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Prunus nigra, the Canada plum, Canadian plum, or black plum, is a species of Prunus, native to eastern North America from Nova Scotia west to Minnesota and southeastern Manitoba, and south as far as Connecticut, Illinois, and Iowa. It formerly also grew in Ohio but is now thought to be extinct in that state. Isolated populations are present along streambanks in Saskatchewan and Alberta, along Lake Timiskaming in northern Ontario, and along the Maine-New Brunswick border, though this latter population is now severely threatened as the tree is a host for an aphid that menaces the local potato crop and so many of the trees have been cut down.

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Prunus texana, called peachbush, Texas almond cherry, Texas peachbush, sand plum, peach bush, and wild peach is native to central and western Texas.

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Prunus subcordata, known by the common names Klamath plum, Oregon plum, Pacific plum and Sierra plum, is a member of the genus Prunus, native to the western United States in California and western and southern Oregon. It grows in forests, most often at low elevation near the coast, but it is also in the Sierra Nevada and Cascades; it grows at altitudes of 100–1,900 m. P. subcordata var. subcordata, Klamath plum, is also found in Washington.