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"A genus of plants of the natural order Saxifrangeae. This order has a calyx, usually of five sepals more or less cohering at the base; a corolla usually of five sepals more or less cohering at the base; a corolla usually of five perigynous petals, alternate with the sepals, rarely wanting; perigynous stamens; a hypogynous or perigynous disc; an overy, usually of two carpels, cohering more or less by their face, but diverging at the apex." — Chambers, 1881

Saxifrage

"A genus of plants of the natural order Saxifrangeae. This order has a calyx, usually of five sepals…