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4a1. Rosaceae Jussieu (subfam. Rosoideae) tribe Ulmarieae Lamarck & de Candolle, Syn. Pl. Fl. Gall. 338. 1806.
[(as Ulmariae)]
Luc Brouillet
Herbs, perennial; unarmed. Leaves alternate, pinnately compound; stipules persistent, free or adnate to petiole; venation pinnate to nearly palmate basally. Flowers: perianth and androecium perigynous; epicalyx bractlets absent; hypanthium flat to concave; torus inconspicuous, sometimes enlarged in fruit; carpels 5–12, distinct, free, styles terminal to subterminal, distinct; ovules 2, apical, superposed. Fruits aggregated achenes; styles persistent, not elongate.
Genus 1, species 15 (4 in the flora): North America, Eurasia, n Africa; introduced in Pacific Islands (New Zealand), Australia.
The base chromosome number for Ulmarieae is x = 7.
Lower Taxon
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