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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

HEMIEVA

Michael S. Park


1 sp. (Greek: 1/2 of well, from hypanthium) [Soltis et al. 1996 Syst Bot 21:169–185] Close to Bolandra and Suksdorfia.

H. ranunculifolia (Hook.) Raf.
NATIVE
Plant 1–3 dm; caudex scaleless, bearing bulblets. Leaf: basal and cauline, basal and proximal petioled, petioles 5–10 cm, distal sessile, reduced; stipules membranous, entire, ± sheathing; blade 1–4 cm wide, ovate, base cordate to reniform, ± glabrous, 1° lobes 3, deep, teeth coarse, round, tips sharp. Inflorescence: cyme, ± flat-topped, < 15-flowered, glandular; flowers generally crowded, pedicels generally < 3 mm; bracts sessile, linear. Flower: hypanthium partly fused to ovary; calyx lobes 1–3 mm, ovate to triangular; petals 2–4 mm, ± white, elliptic to obovate, short-clawed; stamens 5, opposite calyx lobes; pistils 2, ovary > 1/2-inferior, placentas marginal. Fruit: 2 follicles.
Moist rocky slopes; 1500–2500 m. Klamath Ranges, n High Sierra Nevada/High Cascade Range (Plumas Co.); to British Columbia, Alberta, Montana. [Suksdorfia ranunculifolia (Hook.) Engl.] Jun–Aug [Online Interchange] {CNPS list}

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Next taxon: Heuchera

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Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on Apr 16 2014
Citation for this treatment: [Author of taxon treatment] 2012. Hemieva, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=27971, accessed on Apr 16 2014

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Bioregions in which Hemieva ranunculifolia occurs 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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CCH collections by month

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