Common Name: ROSE FAMILY
Habit: Annual to tree, glandular or not. Leaf: simple to palmately or pinnately compound, generally alternate; stipules free to fused (0), persistent to deciduous. Inflorescence: cyme, raceme, panicle, cluster, or flowers 1; bractlets on pedicel ("pedicel bractlets") generally 0--3(many), subtended by bract or generally not. Flower: generally bisexual, radial; hypanthium free or fused to ovary, saucer- to funnel-shaped, subtending bractlets ("hypanthium bractlets") 0--5, alternate sepals; sepals generally 5; petals generally 5, free; stamens (0,1)5--many, anther pollen sacs generally 2; pistils (0)1--many, simple or compound, ovary superior to inferior, styles 1--5. Fruit: 1--many per flower, achene (fleshy-coated or not), follicle, drupe, or pome with generally papery core, occasionally drupe-like with 1--5 stones. Seed: generally 1--5 (per fruit, not per flower).
Genera In Family: 110 genera, +- 3000 species: worldwide, especially temperate; many cultivated for ornamental, fruit, especially Cotoneaster, Fragaria, Malus, Prunus, Pyracantha, Rosa, Rubus. Note: Number of teeth is per leaf or leaflet, not per side of leaf or leaflet, except in Drymocallis.
eFlora Treatment Author: Daniel Potter & Barbara Ertter, family description, key to genera; treatment of genera by Daniel Potter, except as noted
Scientific Editor: Daniel Potter, Thomas J. Rosatti.
Habit: Perennial herb from thick caudex or elongate rhizome. Stem: ascending to erect, generally hairy. Leaf: generally basal, generally odd-1-pinnately compound, upper cauline simple or not; leaflets lobed, alternately large, small, teeth uneven. Inflorescence: generally cyme, open; pedicel bractlets 0. Flower: hypanthium shallow, bractlets generally 5; stamens > 20; pistils many, ovary superior, continuous to style. Fruit: achene, ovoid to fusiform, +- flat; style elongated, persistent.
Species In Genus: 40--50 species: generally northern temperate, arctic. Etymology: (Latin: ancient name)
eFlora Treatment Author: Joseph R. Rohrer
Common Name: LARGE-LEAVED AVENS
Habit: Plant tufted, drying +- green. Stem: 20--110 cm. Leaf: 10--45 cm; main leaflets generally 2--4 per side, generally << terminal; terminal leaflet generally 8--10 cm, +- blunt-cordate-reniform, 3-lobed < 3/4 to base, irregularly toothed. Inflorescence: 3--16-flowered; pedicels densely hairy. Flower: rotate, generally erect; hypanthium bractlets generally 0 or <= 2 mm, linear; sepals reflexed, 2.5--5.5 mm; petals 3--7 mm, obovate-round, yellow, deciduous. Fruit: body 2.5--3.5 mm; style 2.5--6 mm, hooked below deciduous tip, without bristles, generally glandular. Chromosomes: 2n=42.