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Saxifraga
See list of 5 species in this genusSoltis et al. (2001) showed that the traditionally defined Saxifraga is not monophyletic and that several of our species must be segregated. These taxa not related to the core species of Saxifraga are placed in the genus Micranthes. Reference: Brouillet and Elvander (2009b).
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1a. Leaves opposite and borne on a stem, closely imbricate; petals purple
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1b. Leaves alternate or ± all basal [Fig. 905], those borne on a stem not closely imbricate; petals white or yellow
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2a. Primary leaves with orbicular to reniform blades that have 3–7 palmately arranged, tooth like lobes and are borne on evident petioles [Fig. 906]
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3a. Upper leaves with vegetative bulbils in their axils; inflorescence a solitary, terminal flower; petals 6–10 mm long; stems solitary or a few together, 8–20 cm tall
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3b. Upper leaves without vegetative bulbils; inflorescence of 1–4 flowers; petals 3–5 mm long; stems cespitose, 2–10 cm tall
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2b. Primary leaves with narrow-oblong or lanceolate to to obovate or obovate-oblong blades, entire or toothed, sessile or tapering to the base [Fig. 905]
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4a. Leaf blades entire, without a conspicuous, lime-encrusted pores; petals yellow, often orange-dotted
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4b. At least the larger leaf blades toothed, each tooth with a conspicuous, white, lime-encrusted pore [Fig. 905]; petals white, without orange dots
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Each photo represents one species in this genus.