Saxifraga burseriana

• Interesting Facts
• Common Names
• Description
• Biology
• Taxonomy
• Similar Species
• More Info
• Further Reading
• Notes

Interesting Facts

Common Names

Description

Family Saxifragaceae

Herbs or shrubs , rarely trees or vines . Leaves simple or compound , usually alternate or opposite, usually exstipulate . Flowers usually in cymes, panicles, or racemes , rarely solitary, usually bisexual , rarely unisexual , hypogynous or ± epigynous , rarely perigynous, usually biperianthial, rarely monochlamydeous , actinomorphic , rarely zygomorphic, 4- or 5(-10) -merous. Sepals sometimes petal-like. Petals usually free , sometimes absent. Stamens (4 or) 5-10 or many; filaments free; anthers 2-loculed; staminodes often present. Carpels 2, rarely 3-5(-10), usually ± connate ; ovary superior or semi-inferior to inferior, 2- or 3-5(-10) -loculed with axile placentation , or 1-loculed with parietal placentation , rarely with apical placentation; ovules usually many, 2- to many seriate , crassinucellate or tenuinucellate , sometimes with transitional forms; integument 1- or 2-seriate; styles free or ± connate. Fruit a capsule or berry, rarely a follicle or drupe. Seeds albuminous , rarely not so; albumen of cellular type, rarely of nuclear type; embryo small.

About 80 genera and 1200 species: worldwide; 29 genera (two endemic), and 545 species (354 endemic, seven introduced ) in China.

During the past several years, cladistic analyses of morphological, chemical, and DNA data have made it clear that the recognition of the Saxifragaceae sensu lato (Engler, Nat. Pflanzenfam. 18a: 74-226. 1928) is untenable. Among the angiosperm families, Saxifragaceae sensu lato may in fact represent the most extreme example of a polyphyletic assemblage . For example, recent analyses of DNA sequence data indicate that these taxa represent at least ten separate evolutionary lines , many of which are only distantly related to one another (Morgan & Soltis, Ann. Missouri Bot. Gard. 80: 631-660. 1993; Soltis & Soltis, Amer. J. Bot. 84: 504-522. 1997) . Furthermore, very large molecular phylogenetic analyses of hundreds of angiosperms indicate that these separate lineages are distributed among four of the six traditionally recognized subclasses of dicotyledons (Savolainen et al. , Syst. Biol. 49: 306-362. 2000; Soltis et al., Nature 402: 402-404. 1999) . These recent studies have also greatly clarified how this phylogenetically diverse assemblage should be divided into families and treated taxonomically (see The Angiosperm Phylogeny Group (APG), Ann. Missouri Bot. Gard. 85: 531-553. 1998) . Recent studies of DNA sequence data have clarified both the circumscription and affinities of a narrowly defined Saxifragaceae (Saxifragaceae sensu stricto) and Hydrangeaceae (Soltis et al., Amer. J. Bot. 82: 504-514. 1995; Savolainen et al., loc. cit. ; Soltis et al., loc. cit. 1999) . Saxifragaceae sensu stricto should consist only of Saxifragoideae, a group of about 30 herbaceous genera. Members of Saxifragaceae sensu stricto from the Chinese flora include Astilbe, Astilboides, Bergenia, Chrysosplenium, Mitella, Mukdenia, Oresitrophe, Rodgersia, Saxifraga, Tanakaea, Tiarella, and the recently described Saniculiphyllum. Close relatives of Saxifragaceae sensu stricto include Itea, Penthorum, and Ribes. These genera, the sole members of Iteoideae, Penthoroideae, and Ribesioideae, respectively, are also best treated in separate families: Iteaceae, Penthoraceae, and Grossulariaceae (see APG, loc. cit.) . These taxa, as well as several others, such as Crassulaceae, are basal to a large assemblage of taxa, most of which were traditionally placed in Rosidae . Sequence data also indicate that Parnassia (the sole member of the Parnassioideae) is a more derived member of the rosid alliance , most closely related to Brexia and Lepuropetalon (also part of Saxifragaceae sensu lato) and Celastraceae. Parnassia and Lepuropetalon should be placed in Parnassiaceae with Brexia part of an expanded Celastraceae (APG, loc. cit.) .

Both morphological and molecular data indicate that Hydrangeoideae and Escallonioideae are, in contrast, allied with taxa traditionally placed in Asteridae. Hydrangeoideae are a well-defined, monophyletic lineage that should be treated as Hydrangeaceae. In China they include Cardiandra, Decumaria, Deinanthe, Deutzia, Dichroa, Hydrangea, Kirengeshoma, Philadelphus, Pileostegia, Platycrater, and Schizophragma, and are closely allied with families such as Cornaceae, Loasaceae, and Nyssaceae. Escallonioideae appear to be polyphyletic, and this group of approximately 14 genera is in need of thorough study. Members of this subfamily are allied with several different lineages of higher asterids. Polyosma, the only member of Escallonioideae in China, appears closely allied with Caprifoliaceae (Xiang & Soltis in Boufford & Ohba, Sino-Japanese Flora: its Characteristics and Diversification, 1998) .[1]

Genus Saxifraga

Herbs perennial , rarely annual or biennial. Stem cespitose or simple . Leaves both basal and cauline, petiolate or not; leaf blade simple, entire, margin dentate or lobate ; cauline leaves usually alternate, rarely opposite. Inflorescence a solitary flower or few- to many-flowered cyme, bracteate . Flowers usually bisexual , sometimes unisexual , actinomorphic , rarely zygomorphic; receptacle cyathiform or saucer-shaped . Sepals (4 or) 5(or 7 or 8) . Petals (4 or) 5, yellow, orange, white, or red to purple, callose or not, distinctly veined, margin usually entire. Stamens (8 or) 10; filaments subulate or clavate . Carpels 2, usually connate at least in placental region; ovary superior to inferior, usually 2-loculed; placentation usually axile ; ovules many; integuments 1 or 2; nectary disc sometimes well developed, annular or semiannular. Fruit a 2-valved capsule. Seeds many.

About 450 species: Asia, Europe, North America, South America (Andes), mainly in alpine areas; 216 species (139 endemic) in China.[2]

Physical Description

Biology

Growth

Culture: Space 12-15" apart.

Soil: Minimum pH: 6.1 • Maximum pH: 8.5

Sunlight: Sun Exposure: Sun to Partial Shade.

Temperature: Cold Hardiness: 5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b, 9a, 9b. (map)

Taxonomy

Notes

Publishing author : L. Publication : Sp. Pl. 1: 400 1753 [1 May 1753]

Similar Species

Members of the genus Saxifraga

ZipcodeZoo has pages for 228 species, subspecies, varieties, forms, and cultivars in this genus. Here are just 100 of them:

S. adscendens oregonensis (Rock Saxifrage) · S. adscendens subsp. oregonensis (Small Saxifrage) · S. aizoides (Yellow Mountain Saxifrage) · S. aleutica (Aleutian Saxifrage) · S. apetala (Western Swamp Saxifrage) · S. aprica (Sierra Saxifrage) · S. arendsii (Mossy Saxifrage) · S. bronchialis (Matted Saxifrage) · S. bronchialis funstonii (Funston's Saxifrage) · S. bronchialis vespertina (Yellowdot Saxifrage) · S. bronchialis subsp. austromontana (Matted Saxifrage) · S. bronchialis subsp. cherlerioides (Yellowdot Saxifrage) · S. bronchialis subsp. funstonii (Funston's Saxifrage) · S. bronchialis subsp. vespertina (Yellowdot Saxifrage) · S. bryophora (Bud Saxifrage) · S. bryophora var. bryophora (Bud Saxifrage) · S. bryophora var. tobiasiae (Tobias' Saxifrage) · S. burseriana (Kabschia Saxifrage) · S. caespitosa caespitosa (Tufted Alpine Saxifrage) · S. caespitosa sileneflora (Tufted Alpine Saxifrage) · S. caespitosa subgemmifera (Tufted Alpine Saxifrage) · S. californica (California Saxifrage) · S. callosa (Encrusted Saxifrage) · S. calycina (Alaska Saxifrage) · S. calycina subsp. unalaschcensis (Alaska Saxifrage) · S. careyana (Carey's Saxifrage) · S. caroliniana (Carolina Saxifrage) · S. cespitosa emarginata (Tufted Alpine Saxifrage) · S. cespitosa exaratoides (Nodding Saxifrage) · S. cespitosa subsp. exaratoides (Tufted Alpine Saxifrage) · S. chrysantha (Goldbloom Saxifrage) · S. cochlearis (Encrusted Saxifrage) · S. codyanus codyanus (Yellowdot Saxifrage) · S. cotyledon (Encrusted Saxifrage) · S. cotyledon 'Pyramidalis' (Encrusted Saxifrage) · S. cotyledon 'Southside Seedling' (Encrusted Saxifrage) · S. crassifolia (Siberian-Tea) · S. crustata (Encrusted Saxifrage) · S. cuneifolia (Robertsoniana Saxifrage) · S. cuneifolia 'Variegata' (Robertsoniana Saxifrage) · S. cuscutaeformis (Dwarf Strawberry Begonia) · S. delicatula (Tufted Alpine Saxifrage) · S. eriophora (Red-Fuzz Saxifrage) · S. eschscholtzii (Ciliate Saxifrage) · S. ferdinandi-coburgi (Kabschia Saxifrage) · S. ferdinandi-coburgi 'Dracula' (Kabschia Saxifrage) · S. ferruginea (Alaska Saxifrage) · S. ferruginea var. ferruginea (Russethair Saxifrage) · S. ferruginea var. newcombei (Newcombe's Saxifrage) · S. ferruginea var. vreelandii (Vreeland's Saxifrage) · S. flagellaris crandallii (Whiplash Saxifrage) · S. flagellaris setigera (Whiplash Saxifrage) · S. flagellaris subsp. crandallii (Crandall's Saxifrage) · S. flagellaris subsp. setigera (Whiplash Saxifrage) · S. foliolosa (Leafystem Saxifrage) · S. fortunei 'Beni Fuji' (Saxifrage) · S. fortunei 'Black Ruby' (Saxifrage) · S. fortunei 'Silver Velvet' (Saxifrage) · S. funstonii funstonii (Funston's Saxifrage) · S. geum (Geum Saxifrage) · S. gormanii (Gorman's Saxifrage) · S. granulata (Fair Maids of France) · S. grisebachii (Engleria Saxifrage) · S. hieraciifolia (Stiffstem Saxifrage) · S. hieraciifolia var. angusticapsula (Stiffstem Saxifrage) · S. hieraciifolia var. hieraciifolia (Stiffstem Saxifrage) · S. hieraciifolia var. rufopilosa (Stiffstem Saxifrage) · S. hirculus coloradensis (Yellow Marsh Saxifrage) · S. hirculus subsp. coloradensis (Yellow Marsh Saxifrage) · S. hirculus subsp. compacta (Yellow Marsh Saxifrage) · S. hirculus subsp. propinqua (Yellow Marsh Saxifrage) · S. hirsuta (Kidney Saxifrage) · S. hitchcockiana (Saddle Mountain Saxifrage) · S. hostii (Encrusted Saxifrage) · S. howellii (Howell's Saxifrage) · S. hyperborea (Pygmy Saxifrage) · S. idahoensis (Idaho Saxifrage) · S. integrifolia (Swamp Saxifrage) · S. iranica (Kabschia Saxifrage) · S. juniperifolia (Kabschia Saxifrage) · S. lilacina (Kabschia Saxifrage) · S. longifolia (Encrusted Saxifrage) · S. luteoviridis (Engleria Saxifrage) · S. lyallii (Redstem Saxifrage) · S. lyallii hultenii (Hulten's Saxifrage) · S. lyallii subsp. hultenii (Hulten's Saxifrage) · S. marginata (Kabschia Saxifrage) · S. marshallii (Marshall's Saxifrage) · S. media (Engleria Saxifrage) · S. mertensiana (Wood Saxifrage) · S. michauxii (Michaux's Saxifrage) · S. micranthidifolia (Brook Lettuce) · S. mutata (Encrusted Saxifrage) · S. nathorstii (East Greenland Saxifrage) · S. nelsoniana carlottae (Brook Saxifrage) · S. nelsoniana cascadensis (Heartleaf Saxifrage) · S. nelsoniana insularis (Heartleaf Saxifrage) · S. nelsoniana pacifica (Pacific Saxifrage) · S. nelsoniana porsildiana (Porsild's Saxifrage) · S. nelsoniana subsp. carlottae (Heartleaf Saxifrage)

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Further Reading

• A practical guide to garden plants, containing descriptions of the hardiest and most beautiful annuals and biennials, hardy herbaceous and bulbous perennials, hardy water and bog plants, flowering and ornamental trees and shrubs, conife London;Longmans, Green, 1901. url , p. 419, p. 447.
• Alpines and bog-plants, London, E. Arnold, 1908. url .
• Catalogue of scientific papers (1800-1900) Comp. by the Royal society of London. Cambridge, C. J. Clay and sons, 1867-1902; url p. 48.
• Catalogue of scientific papers, 1800-1900. Compiled by the Royal Society of London. London, C.J. Clay and Sons, 1867-1902 [etc.] Cambridge, Cambridge University Press, 1914-25. url p. 48.
• Gardening for amateurs; a simple, complete, and practical guide for garden lovers, edited by H. H. Thomas. Illustrated by twenty-four coloured plates and many hundreds of photographs and sketches. New York: Funk and Wagnalls company, [1915] url p. 612.
• Hand-list of herbaceous plants cultivated in the Royal Botanic Gardens. London, Printed for H. M. Stationery Off. by Darling, 1902. url p. 995.
• Introduction to physiological and systematical botany. London, Longman, 1819. url p. 132.
• Irish gardening. Dublin: Pub. Office, 1906-1922 url , p. 19, p. 53, p. 53, p. 54.
• Lawns and gardens. How to plant and beautify the home lot, the pleasure ground and garden, by N. Jönsson-Rose. With numerous plans and illustrations by the author. New York: G. P. Putnam, 1897. url p. 311.
• Memories of the months. Sixth series, by the Right Hon. Sir Herbert Maxwell, bart. London: E. Arnold, 1919. url , .
• More pot-pourri from a Surrey garden, by Mrs. C. W. Earle. London: Smith Elder, 1899. url p. 451, p. 451.
• Picture of organized nature, in its spreading over the earth. Translated from the German of Wilbrand & Ritgen. London, Smith, 1828. url p. 29.
• Rock gardening for amateurs, by H. H. Thomas assisted by S. Arnott; beautifully illustrated with twelve direct colour photographs by H. Essenhigh Corke, sixty-four half-tone plates and numerous sketches. London, Cassell and company, limited, 1914. url p. 261.
• Standardized plant names; a catalogue of approved scientific and common names of plants in American commerce. Salem, Mass., 1923. url p. 461, p. 462, p. 51.
• Studies in gardening, New York, C. Scribner's sons, 1916. url , .
• Studies in gardening, by A. Clutton Brock; with preface and notes by Mrs. Francis King. .. New York, C. Scribner's Sons, 1916. url p. 217, p. 217, p. 54, p. 54.
• The Biochemical journal. London [etc.]Cambridge University Press. url p. 288.
• The Florists' exchange: a weekly medium of interchange for florists, nurserymen, seedsmen and the trade in general. New York, N.Y.: [A.T. De la Mare Ptg. and Pub. Co., url p. 1095, p. 350.
• The Garden: an illustrated weekly journal of gardening in all its branches. London: [s.n., url , , , , , , , p. 114, p. 115, p. 116, p. 120, p. 125, p. 125, p. 126, p. 127, p. 135, p. 138, p. 14, p. 143, p. 147, p. 151, p. 152, p. 152, p. 153, p. 153, p. 155, p. 155, p. 157, p. 167, p. 177, p. 178, p. 179, p. 180, p. 182, p. 182, p. 184, p. 187, p. 187, p. 190, p. 191, p. 192, p. 193, p. 195, p. 202, p. 210, p. 214, p. 215, p. 216, p. 217, p. 226, p. 235, p. 237, p. 238, p. 238, p. 264, p. 274, p. 283, p. 30, p. 307, p. 308, p. 317, p. 329, p. 403, p. 430, p. 474, p. 482, p. 494, p. 506, p. 52, p. 547, p. 55, p. 574, p. 586, p. 59, p. 59, p. 6, p. 63, p. 63, p. 7, p. 81, p. 84, p. 90, p. 97.
• The Gardeners' chronicle: a weekly illustrated journal of horticulture and allied subjects. London: [Gardeners Chronicle], 1874-1955. url , p. 106, p. 107, p. 119, p. 140, p. 141, p. 141, p. 151, p. 157, p. 159, p. 164, p. 29, p. 302, p. 346, p. 60, p. 77, p. 77, p. 91, p. 98.
• The beginner's book of gardening, London, John Lane company, 1911. url .
• The book of hardy flowers; a simple and complete descriptive guide to the cultivation in gardens of the trees and shrubs, perennial and annual flowers, that are hardy, or are suitable for planting out-of-doors in summer in temp Ed. by H. H. Thomas. .. Beautifully illustrated with thirty-two direct color photographs by H. Essenhigh Corke and sixty-four half-tone plates. 1915 New York, Funk & Wagnalls company; [etc., etc.][1915] url p. xii.
• The culture of pot-plants in rooms, greenhouses, & frames, by Hugh C. Davidson. London, C. Lockwood, 1922. url p. 77.
• The encyclopedia of gardening. A dictionary of cultivated plants, etc., giving in alphabetical sequence the culture and propagation of hardy and half-hardy plants, trees and shrubs, orchids, ferns, fruit, vegetables, hothouse and g London, W. H. & L. Collingridge[1908] url .
• Wall and water gardens / by Gertrude Jekyll. [London]: "Country life", [190-?] url .
• Wall and water gardens. By Gertrude Jekyll. [London]"Country life"[1902] url .
• Hwang Shu-mei, Wei Chao-fen, Lu Ling-ti, Ku Tsue-chih &
• Hwang Shu-mei, eds., Fl. Reipubl. Popularis Sin. 35(1): 1-406.
• Jin Shu-ying. 1995. Saxifragaceae (2) [Parnassioideae, Hydrangeoideae, Escallonioideae, Iteoideae, Ribesioideae]. In: Lu Ling-ti &
• Pan Jin-tang. 1992. Saxifragaceae (1) [Penthoroideae, Saxifragoideae]. In: Pan Jin-tang, ed., Fl. Reipubl. Popularis Sin. 34(2): 1-309
• Hwang Shu-mei, Wei Chao-fen, Lu Ling-ti, Ku Tsue-chih & Jin Shu-ying. 1995. Saxifragaceae (2) [Parnassioideae, Hydrangeoideae, Escallonioideae, Iteoideae, Ribesioideae]. In: Lu Ling-ti & Hwang Shu-mei, eds., Fl. Reipubl. Popularis Sin. 35(1): 1-406.
• Pan Jin-tang. 1992. Saxifragaceae (1) [Penthoroideae, Saxifragoideae]. In: Pan Jin-tang, ed., Fl. Reipubl. Popularis Sin. 34(2): 1-309

Notes

Contributors

• Brands, S.J. (comp.) 1989-present. The Taxonomicon. Universal Taxonomic Services, Zwaag, The Netherlands. Accessed January 30, 2012.
• Global Biodiversity Information Facility. Accessed March 17, 2008. http://www.gbif.org Mediated distribution data from provider.
• The International Plant Names Index. Accessed Dec 27, 2011.

Data Sources

Accessed through GBIF Data Portal March 17, 2008:

• Bundesamt für Naturschutz / Zentralstelle für Phytodiversität Deutschland: Bundesamt fuer Naturschutz / Zentralstelle fuer Phytodiversitaet Deutschland

Identifiers

• Biodiversity Heritage Library NamebankID: 10940773
• Global Biodiversity Information Facility Taxonkey: 15840888
• Globally Unique Identifier: urn:lsid:ipni.org:names:793336-1
• International Plant Names Index (IPNI) ID: 793336-1
• Zipcode Zoo Species Identifier: 891218

Footnotes

1. Jin-tang Pan, Cuizhi Gu, Shumei Huang, Chao-fen Wei, Shu-ying Jin, Lingdi Lu, Shinobu Akiyama, Crinan Alexander, Bruce Bartholomew, James Cullen, Richard J. Gornall, Ulla-Maj Hultgård, Hideaki Ohba & Douglas E. Soltis "Saxifragaceae". in Flora of China Vol. 8 Page 269. Published by Science Press (Beijing) and Missouri Botanical Garden Press. Online at EFloras.org. [back]
2. Pan Jintang , Richard Gornall, Hideaki Ohba "Saxifraga". in Flora of China Vol. 8 Page 280. Published by Science Press (Beijing) and Missouri Botanical Garden Press. Online at EFloras.org. [back]

©2004-2012 David Stang. All rights reserved.