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Key to families | Table of families and genera

Specimen numbers are hyperlinked to records in the Consortium of California Herbaria data view where possible. Taxa are hyperlinked to entries in the Jepson Interchange via the "[Online Interchange]" link.

 

SAXIFRAGA SAXIFRAGE

Michael S. Park


Plant generally ± hairy, often glandular; caudex or rhizome generally not woody, generally scaly. Leaf: blade obovate to round, base tapered to reniform or cordate, margin lobed. Inflorescence: raceme or panicle; flowers 1–many; bracts scale-like. Flower: hypanthium free or ± fused to ovary; [petals sometimes spotted]; stamens 10, filaments generally flat; pistil 1, ovary superior to ± inferior (sometimes more superior in fruit), chambers 2, placentas 2, axile, styles 2, free throughout. Fruit: capsule.
± 300 species: cool northern temperate, boreal, arctic. (Latin: rock-breaking) Saxifraga stolonifera W. Curtis cultivated only. Other taxa in TJM (1993) moved to Cascadia, Micranthes.

Key to Saxifraga

1. Leaves cauline on ± trailing stem, lobed only at blade tip, lobes ± linear ..... S. cespitosa

1' Leaves mostly basal, cauline smaller and fewer, lobed from blade base to tip, lobes not linear

2. Leaf blade generally 5–8 mm, divided > 1/2 to base; leaf lobes 3–5, elliptic to round, not toothed ..... S. hyperborea

2' Leaf blade generally > 15 mm, divided < 1/4 to base; leaf lobes >> 5, triangular to semicircular, toothed ..... S. mertensiana

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Citation for the whole project: Jepson Flora Project (eds.) [year] Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html [accessed on month, day, year]
Citation for an individual treatment: [Author of taxon treatment] [year]. [Taxon name] in Jepson Flora Project (eds.) Jepson eFlora, [URL for treatment]. Accessed on [month, day, year].
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