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Perennial herb from caudex or rhizome, generally ± hairy. Stem: often ± leafy on proximal 1/2, rarely trailing and leafy throughout. Leaf: generally simple, basal and/or cauline, generally alternate, generally petioled; veins ± palmate. Inflorescence: raceme or panicle, generally ± scapose. Flower: generally bisexual, generally radial; hypanthium free to ± fused to ovary; calyx lobes generally 5; petals generally 5, free, generally clawed, generally white; stamens 3, , 5, 8, or 10; pistils 1 (carpels ± fused, ovary lobed, chambers 1 or 2, placentas generally 2(3), axile or parietal or occasionally proximally axile and distally marginal in ovary lobes) or 2 (carpels free, placentas marginal), ovary nearly superior to inferior, occasionally more superior in fruit, styles generally 2(3). Fruit: capsule (generally 2(3)-beaked, valves generally 2(3), generally equal) or 2 follicles. Seed: generally many, small.
± 30 genera, 600 species: especially northern temperate, arctic, alpine; some cultivated (Bergenia, Darmera, Heuchera, Saxifraga, Tellima, Tolmiea). [Soltis et al. 2001 Ann Missouri Bot Gard 88:669–693; Okuyama et al. 2008 Molec Phylogen Evol 46:560–575] California Mitella moved to Mitellastra, Ozomelis, Pectiantia; Suksdorfia ranunculifolia to Hemieva. Parnassia moved to Parnassiaceae. —Scientific Editor: Bruce G. Baldwin.
Unabridged references: [Soltis 1988 Syst Bot 13:64–72]
Key to Saxifragaceae
Plant minutely glandular; rhizome scaly; bulblets 0. Leaf: basal, occasionally 1 cauline; petioles with long, downward-pointing, gland-tipped, white hairs, occasionally lacking in youngest leaves; blade ovate to round, ± lobed, base ± cordate. Inflorescence: spike-like raceme, ± 1-sided, blooming from base to tip; bracts generally scale-like. Flower: hypanthium widely obconic to bell-shaped, ± fused to ovary; sepals mucronate, gland at tip; petals not clawed, lobes 3 at tip; stamens 5, alternate petals; pistil 1, ovary generally > 1/2-inferior, chamber 1, placentas 2, parietal, stigmas unlobed, ± sessile. Fruit: capsule, becoming widely dehiscent. Seed: many, red-brown to black, minutely papillate.Key to Ozomelis
± 3 species: temperate western North America. (Greek: odor of honey, from flower)
Previous taxon: Mitellastra caulescens
Next taxon: Ozomelis diversifolia
Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on Oct 25 2014
Citation for this treatment: [Author of taxon treatment] 2013. Ozomelis, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=69003, accessed on Oct 25 2014
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