Rosaceae
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Authority
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.
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Family
Rosaceae
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Scientific Name
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Description
Family Description - Fls commonly regular and perfect, perigynous or epigynous, usually (4)5-merous as to the sep and pet, or the pet seldom wanting; hypanthium saucer-shaped to cup-shaped or urceolate; stamens (1–)10–many, typically in multiples of 5, often 20 in all; pistils 1–many, superior and usually distinct, or (in subfamily Maloideae) united into a compound, inferior ovary with axile placentas and distinct styles; ovules 1–several; fr variously an achene, follicle, drupe, or pome, or a set of coherent drupelets, with or without an enlarged and modified hypanthium or receptacle; endosperm mostly wanting or nearly so, but copious in Physocarpus; herbs or woody plants with mostly alternate, simple or compound, stipulate or seldom (as in Spiraea) exstipulate lvs and commonly with conspicuous fls. 100/3000.
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Discussion
Several spp. not keyed and described in the following text occasionally escape from cult. Among these are Exochorda racemosa (Lindl.) Rehder, a simple-lvd, white-fld shrub with a superior ovary of 5 weakly united carpels, ripening into a winged capsule; Rhodotypos scandens (Thunb.) Makino, a simple-lvd, white-fld shrub differing from all our other Rosaceae in its opposite lvs; and Kerria japonica (L.) DC. a shrub with simple lvs and bright yellow fls.
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Common Names
The rose family