Flora of North America species comparison

short.

± tufted, (2–)2.5–6(–8) dm;

base 2–3 mm diam., moderately to densely septate-glandular.

glabrate or sparsely hairy (hairier at northern margin of range);

basal (8–)20–30 cm, leaflet pairs 2–4;

terminal leaflet ± obovate, 2–6(–7) × (1–)1.5–3 cm, teeth ± double, 5–25 per side, apex obtuse to acute;

cauline 0–2, well developed, leaflet pairs 1–3.

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

stipules present, rarely absent.

(5–)10–30(–60)-flowered, leafy, open, 1/6–2/3 of stem, wide, branch angles (20–)30–60°.

5–40 (proximal to 45) mm, sparsely to moderately short-hairy, predominantly septate-glandular.

opening widely;

epicalyx bractlets linear-oblanceolate, 2–6 × 0.5–1 mm;

sepals spreading, 4–7(–8) mm, apex usually acute, rarely obtuse;

petals ± overlapping, spreading, usually bright, sometimes pale, yellow, broadly obovate to round, 5–12 × (4–)5–11 mm, usually longer, rarely shorter, than sepals;

filaments 1.5–4 mm, anthers 0.7–1 mm;

styles thickened, 1 mm.

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).

brown to reddish, 1.2 mm.

= 7(8).