Higher Taxonomy
Common Name: SAXIFRAGE FAMILY Habit: 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. Genera In Family: +- 30 genera, 600 species: especially northern temperate, arctic, alpine; some cultivated (Bergenia, Darmera, Heuchera, Saxifraga, Tellima, Tolmiea). Note: California Mitella moved to Mitellastra, Ozomelis, Pectiantia; Suksdorfia ranunculifolia to Hemieva. Parnassia moved to Parnassiaceae. eFlora Treatment Author: Michael S. Park & Patrick E. Elvander, except as noted Scientific Editor: Bruce G. Baldwin.
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Heuchera
Habit: Rhizome scaly; bulblets 0. Leaf: basal, sometimes a few cauline; blade ovate, base cordate to reniform, lobes and teeth generally shallow, irregular. Inflorescence: panicle, often spike- or raceme-like; bracts generally scale-like. Flower: radial or +- bilateral; hypanthium partly fused to ovary; calyx lobes equal or not; petals 0 or 5, generally equal, clawed, generally white; stamens 5, generally equal; pistil 1, ovary > 1/2-inferior, chamber 1, placentas 2, parietal. Fruit: capsule. Seed: red-brown, minutely spiny. Species In Genus: 50 species: North America. Etymology: (J.H. von Heucher, German professor of medicine, 1677--1747) Note: Highly variable; needs study. Jepson eFlora Author: Michael S. Park Unabridged Reference: Rosendahl et al. 1936 Minnesota Stud Pl Sci 2:1--180Index of California Plant Names (ICPN; linked via the Jepson Online Interchange)Key to Heuchera
Previous taxon: Hemieva ranunculifoliaNext taxon: Heuchera abramsii
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Citation for this treatment: Michael S. Park 2012, Heuchera, in Jepson Flora Project (eds.) Jepson eFlora, https://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=11333, accessed on April 19, 2024.
Citation for the whole project: Jepson Flora Project (eds.) 2024, Jepson eFlora, https://ucjeps.berkeley.edu/eflora/, accessed on April 19, 2024.
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