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SAXIFRAGACEAE SAXIFRAGE FAMILY

Michael S. Park & Patrick E. Elvander, except as noted

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, [4], 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

DARMERA UMBRELLA PLANT

Michael S. Park


1 sp. (Karl Darmer, German horticulturist, 19th century) [Schmid & Turner 1977 Madroño 24:68–74]

D. peltata (Benth.) Voss
NATIVE
Plant 3–15 dm; rhizome < 5 cm thick, fleshy, scaly; bulblets 0. Leaf: basal, < 1.5 m; blade peltate, generally > 1 dm, ± round, lobes deep, teeth irregular. Inflorescence: appearing before leaves, 7–20 dm, ± flat-topped; bracts generally scale-like or 0. Flower: hypanthium minute, free from ovary; calyx lobes reflexed, 3–4 mm, elliptic; petals not clawed, 5–7 mm, obovate, white to pink; stamens 10, 3–4 mm, filaments tapered; pistils 2, appearing fused early in flower, ovary superior, placentas marginal. Fruit: 2 follicles, 8–12 mm.
2n=34. Rocky streambanks; < 2000 m. Klamath Ranges, n Outer North Coast Ranges (Humboldt Co.), Cascade Range, n Sierra Nevada Foothills, High Sierra Nevada; southwestern Oregon. Apr–Sep [Online Interchange]
Unabridged note: Expanded author citation: Darmera peltata (Torr. ex Benth.) Voss

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Next taxon: Hemieva

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Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on Dec 17 2014
Citation for this treatment: [Author of taxon treatment] 2013. Darmera, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=22342, accessed on Dec 17 2014

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click for enlargement Darmera peltata
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1995 Saint Mary's College of California

Geographic subdivisions indicated for the distribution of Darmera peltata Markers link to CCH specimen records. If the markers are obscured, reload the page [or change window size and reload]. Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues.
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map of distribution 1
(Note: any qualifiers in the taxon distribution description, such as 'northern', 'southern', 'adjacent' etc., are not reflected in the map above, and in some cases indication of a taxon in a subdivision is based on a single collection or author-verified occurence).

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Data provided by the participants of the Consortium of California Herbaria.
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CCH collections by month

Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa.
Blue line denotes eFlora flowering time.