Flora of North America species comparison

horizontal, thin, 2.5–3 mm wide, internodes 3–7 cm;

root tubers absent.

glabrous.

basal 1 or 2, deciduous by flowering;

stipules ovate to elliptic, 1–1.5 cm, base auriculate;

lateral leaflets in 1–5 pairs, remote, ovate to elliptic, to 9 cm, palmately 2–3-lobed, lobes lanceolate, margins serrate or doubly serrate;

terminal leaflets round, 10–15 cm diam., palmately 7–9-lobed, lobes oblanceolate to lanceolate, margins doubly serrate, apex acute to acuminate, surfaces hairy at least on veins, hairs appressed, straight, short, 0.5 mm, or adaxial glabrous.

alternate, rarely opposite, pinnately compound, sometimes simple or palmately compound;

stipules present, rarely absent.

100+-flowered;

branches and pedicels glabrous.

hypanthium slightly concave;

sepals (4–)5(–6), purplish, spatulate to triangular, 1–3 mm, margins without midrib, abaxially glabrous, adaxially finely appressed-hairy or glabrous;

petals (4–)5(–6), pink to purple, orbiculate, 2.5–7 mm, claws distinct, short, base narrow, margins unevenly toothed;

stamens pink to purplish, about equal to or longer than petals.

torus usually enlarged, sometimes small or absent;

carpels 1–260(–450), distinct, free, styles distinct, rarely connate (Roseae);

ovules 1(or 2), collateral (Rubeae) or superposed (Fallugia, Filipendula).

achenes or aggregated achenes sometimes with fleshy, urn-shaped hypanthium or enlarged torus, sometimes aggregated drupelets;

styles persistent or deciduous, not elongate (elongate but not plumose in Geum).

3–7, flattened, oblanceolate, straight, 8–14 mm, glabrous;

stipes 0.5–1.5 mm;

styles 1–2 mm.

= 7(8).