Leaves:

• mostly alternate
• simple or palmately or pinnately compound
• stipules (except Spirea)
• leaves or leaflets
• ~w/ serrate marginss
• ~oval

Flowers:

• inflorescence – usually indeterminate
• raceme, cyme or solitary, axillary or terminal Radially symmetric Perfect
• 5-parted
• petals distinct, short clawed
• many stamens
• pistils – numerous to 1
• enlarged receptacle (hypanthium) bearing sepals, petals and stamens on its margin
• ovary various

Fruit:

• varied (follicle, capsule, achene, drupelet, drupe, pome)

Other notes:

• very diverse and economically important
• trees, shrubs, herbs
• aromatic
• ~thorny

Genera:

• Amelanchier (shadbush, serviceberry, saskatoon) | 1 species
• Cotoneaster | 1 species
• Crataegus | 1 species
• Holodiscus | 1 species
• Malus | 1 species
• Oemleria | 1 species
• Photinia
• Physocarpus (ninebark) | 1 species
• Prunus (plums) | 2 species
• Rosa (roses) | 1 species
• Rubus (brambles) | 3 species
• Sorbus (rowan, mountain-ash) | 1 species