Rosaceae tribe Gillenieae
Herbs, perennial; unarmed. Leaves alternate, pinnately compound (ternate); stipules persistent or deciduous, free; venation pinnate. Flowers: perianth and androecium perigynous; epicalyx bractlets absent; hypanthium tubular to campanulate; torus absent; carpels 5, basally connate (becoming distinct at maturity), adnate to hypanthium, styles terminal, distinct; ovules 2–4, basal, collateral (obturator present). Fruits aggregated follicles; styles tardily deciduous, elongate.
Genus 1, species 2 (2 in the flora).
The base chromosome number for Gillenieae is x = 9. Gillenia is host to Gymnosporangium and Phragmidium rusts.