Arabis confinis

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

Interesting Facts

Description

Genus Arabis

Herbs annual , biennial, or perennial , rarely subshrubs or shrubs . Trichomes stellate , dendritic , or stalked forked , sometimes mixed with fewer simple ones, rarely primarily simple. Stems simple or branched apically. Basal leaves petiolate , rosulate, simple, often entire, sometimes dentate , rarely lyrate-pinnatifid. Cauline leaves sessile and auriculate , sagittate , or amplexicaul , very rarely petiolate, entire or dentate. Racemes ebracteate or rarely bracteate throughout or only basally, sometimes in panicles, elongated in fruit. Fruiting pedicels erect , ascending , divaricate , or reflexed . Sepals ovate or oblong , base of lateral pair saccate or not, margin membranous. Petals white, pink, or purple; blade spatulate , oblong, or oblanceolate , rarely obovate , apex obtuse or emarginate ; claw shorter than sepals. Stamens 6, tetradynamous ; filaments usually not dilated at base; anthers ovate, oblong, or linear , obtuse at apex. Nectar glands confluent , subtending bases of all stamens; median glands sometimes toothlike and free , rarely absent; lateral glands semiannular or annular . Ovules 12-110 per ovary. Fruit dehiscent siliques, linear, latiseptate , sessile or rarely shortly stipitate ; valves papery , with an obscure or prominent midvein , smooth or torulose ; replum rounded ; septum complete , membranous, translucent , veinless; style obsolete or distinct ; stigma capitate, entire or slightly 2-lobed. Seeds uniseriate or biseriate , winged or margined , oblong or orbicular , flattened; seed coat smooth or minutely reticulate , not mucilaginous when wetted; cotyledons accumbent .

About 70 species: temperate Asia, Europe, North America; 14 species (one endemic) in China.

The limits of Arabis are highly artificial, and the genus is defined primarily on the basis of having branched trichomes, flattened, linear fruit, and accumbent cotyledons . However, this combination of characters has evolved independently several times in the Brassicaceae. A critical study of the genus on worldwide basis is much needed.[1]

Taxonomy

Similar Species

Members of the genus Arabis

ZipcodeZoo has pages for 227 species, subspecies, varieties, forms, and cultivars in this genus. Here are just 100 of them:

A. aculeolata (Waldo Rock-Cress) · A. alpina (Alpine Rock Cress) · A. androsacea (Rock Cress) · A. arendsii 'Compinkie' (Rock Cress) · A. arenicola (Arctic Rock-Cress) · A. aubrietioides (Rockcress) · A. beckwithii (Beckwith's Rockcress) · A. blepharophylla (Coast Rock Cress) · A. blepharophylla 'Red Sensation' (Pink Rock Cress) · A. blepharophylla 'Spring Charm' (Pink Rock Cress) · A. bodiensis (Bodie Hill Rock Cress) · A. boivinii (Boivin's Rockcress) · A. breweri (Brewer's Rock-Cress) · A. breweri var. austiniae (Brewer's Rockcress) · A. breweri var. austiniae (Greene) Rollins (Brewer's Rockcress) · A. breweri var. breweri (Brewer's Rockcress) · A. breweri var. breweri S.Watson (Brewer's Rockcress) · A. breweri var. pecuniaria (Brewer's Rockcress) · A. breweri var. pecuniaria Rollins (Brewer's Rockcress) · A. bryoides (Rockcress) · A. calderi (Calder's Rockcress) · A. canadensis (Sicklepod) · A. carduchorum (Rockcress) · A. caucasica (Gray Rockcress) · A. caucasica 'Compinkie' (Compinkie Arabis) · A. caucasica 'Rosea' (Rock Cress) · A. caucasica 'Snowcap' (Rock Cress) · A. caucasica 'Snow Cap' (Snow Cap Rock Cress) · A. caucasica 'Spring Charm' (Spring Charm Arabis) · A. cobrensis (Gray Rockcress) · A. codyi (Cody's Rockcress) · A. collina rosea (Rockcress) · A. constancei (Constance's Rock Cress) · A. crandallii (Crandall's Rock-Cress) · A. crucisetosa (Cross-Haired Rock Cress) · A. cusickii (Cusick's Rockcress) · A. davidsonii (Davidson's Rockcress) · A. davidsonii var. davidsonii (Davidson's Rockcress) · A. davidsonii var. parva (Davidson's Rockcress) · A. demissa (Nodding Rockcress) · A. demissa var. demissa (Nodding Rockcress) · A. demissa var. demissa Greene (Nodding Rockcress) · A. demissa var. languida (Nodding Rockcress) · A. demissa var. languida Rollins (Nodding Rockcress) · A. dispar (Pinyon Rockcress) · A. divaricarpa (Spreading Rockcress) · A. drummondii (Canadian Rockcress) · A. eschscholtziana (Eschscholtz's Hairy Rockcress) · A. falcatoria (Grouse Creek Rockcress) · A. falcifructa (Elko Rockcress) · A. fecunda (Sapphire Rockcress) · A. fendleri (Fendler Rock-Cress) · A. fendleri var. fendleri (Fendler's Rockcress) · A. fendleri var. spatifolia (Spoonleaf Rockcress) · A. fendleri var. spatifolia (Rydb.) Rollins (Fendler Rockcress) · A. ferdinandi-coburgii (Rockcress) · A. ferdinandi-coburgii 'Old Gold' (Arabis) · A. ferdinandi-coburgii 'Variegata' (Rockcress) · A. ferdinandi-coburgi 'Old Gold' (Alpine Wall Cress) · A. fernaldiana (Fernald Rock-Cress) · A. fernaldiana Rollins var. fernaldiana Rollins (Rockcress) · A. fernaldiana Rollins var. stylosa (S.Watson) Rollins (Rockcress) · A. fernaldiana var. fernaldiana (Park Rockcress) · A. fernaldiana var. stylosa (Park Rockcress) · A. fructicosa (Fruit Rock Cress) · A. furcata (Cascade Rockcress) · A. furcata S.Watson var. furcata S.Watson (Columbia Gorge Rockcress) · A. furcata S.Watson var. olympica (Piper) Rollins (Columbia Gorge Rockcress) · A. furcata var. furcata (Columbia Gorge Rockcress) · A. furcata var. olympica (Columbia Gorge Rockcress) · A. georgiana (Georgia Rock-Cress) · A. glabra (Tower Rockcress) · A. glabra var. glabra (Tower Rockcress) · A. glaucovalvula (Blue-Pod Rockcress) · A. gracilipes (Flagstaff Rockcress) · A. gunnisoniana (Gunnison's Rockcress) · A. hastatula (Eared Rockcress) · A. hirshbergiae (Cuyamaca Rockcress) · A. hirsuta (Hairy Rockcress) · A. hirsuta pycnocarpa (Hairy Rockcress) · A. hirsuta sagittata (Hairy Rockcress) · A. hirsuta var. glabrata (Hairy Rockcress) · A. hirsuta var. hirsuta (Hairy Rockcress) · A. hirsuta var. pycnocarpa (Creamflower Rockcress) · A. hoffmannii (Hoffmann's Rock Cress) · A. holboellii (Holboell Rock-Cress) · A. holboellii Hornem. var. pendulocarpa (A.Nelson) Rollins (Dropseed Rockcress) · A. holboellii Hornem. var. pinetorum (Tidestr.) Rollins (Holboell's Rockcress) · A. holboellii var. collinsii (Holboell's Rockcress) · A. holboellii var. holboellii (Holboell's Rockcress) · A. holboellii var. pendulocarpa (Dropseed Rockcress) · A. holboellii var. pinetorum (Holboell's Rockcress) · A. holboellii var. retrofracta (Holboell Rock-Cress) · A. inyoensis (Inyo Rockcress) · A. johnstonii (Johnston's Rock Cress) · A. kamchatica (Kamchatica Rockcress) · A. kennedyae (Troodos Rockcress) · A. koehleri (Koehler Rock-Cress) · A. koehleri T.J.Howell var. koehleri T.J.Howell (Koehler's Rockcress) · A. koehleri T.J.Howell var. stipitata Rollins (Koehler's Rockcress)

More Info

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Further Reading

• A catalogue of the flowering plants and higher cryptogams, both native and introduced, found within about thirty miles of Hanover, N. H., including a few cultivated species, to which is appended a list of vertebrate animals of the same region. By Henry Jesup. [Hanover?]Printed for the Author, 1891. url p. 4.
• A report upon the boreal flora of the Sierra Nevada of California / by Frank Jason Smiley. Berkeley, Calif.: University of California Press, 1921. url p. 206.
• An illustrated flora of the northern United States, Canada and the British possessions: from Newfoundland to the parallel of the southern boundary of Virginia and from the Atlantic Ocean westward to the 102nd meridian / by Nathaniel Lord Britton and Hon. Addison Brown. New York: Scribner, 1913. url p. 182.
• Annotated list of the ferns and flowering plants of New York state, by Homer D. House. Albany, The University of the state of New York, 1924. url p. 365.
• Annual report Missouri Botanical Garden. 19 1908 St. Louis: Board of Trustees, 1890-1912. url p. 196, p. 216.
• Annual report of the Michigan Academy of Science. Lansing, Mich.: The Academy, 1904. url p. 83.
• Annual report of the Regents / Albany: J.B. Lyon, State Printer, 1890-1903. url p. 628.
• Annual report. .. / [State Board of Agriculture]. [Montpelier, Vt.]: The Board, 1900-1908. url p. 101.
• Botanical survey of Nebraska. Conducted by the Botanical Seminar. I-VII. Lincoln, Neb., 1892-1904. url .
• Bulletin - New York State Museum. Albany: New York State Education Dept. url p. 628.
• Catalogue of Canadian plants. .. Montreal [etc.]1883-1902. url , p. 303.
• Catalogue of plants which have been found growing without cultivation in the park and its outlying territories collected, mounted and catalogued for the plant herbarium in the superintendent's office at Niagara Falls, Ontario / by Roderick Cameron. Niagara Falls, Ont.?: s.n., 1896? url .
• Catalogue of the phanerogams and ferns of Licking County, Ohio. Granville, Ohio, Press of Granville Times, 1892. url .
• Contributions from the Botanical Laboratory. Philadelphia: University of Pennsylvania Press, 1892- url .
• Contributions from the herbarium of the Geological Survey of Canada / by James M. Macoun. [Ottawa?: s.n.], 1894-1906. url p. 145.
• Contributions to Canadian botany / by Jas. M. Macoun. Ottawa: [s. n.], 1894-1906. url p. 145.
• Contributions to the botany of Vermont. Burlington, Vt.: Botanical Dept., University of Vermont, 1898-1911. url p. 101.
• Flora of Illinois, containing keys for identification of flowering plants and ferns. Notre Dame, Ind., University of Notre Dame Press, 1963. url p. 74.
• Flora of Vermont; a list of the fern and seed plants growing without cultivation. Prepared by Ezra Brainerd, L.R. Jones and W.W. Eggleston, committee for the Vermont botanical club. Burlington, Vt., Free Press Association, 1900. url p. 101.
• Grand Rapids flora: a catalogue of the flowering plants and ferns growing without cultivation in the vicinity of Grand Rapids, Michigan. Grand Rapids, Mich., A. Van Dort, 1901. url p. 75.
• Great Basin naturalist memoirs. 1987 [Provo, Utah]Brigham Young University, 1976-1992. url p. 250.
• Journal and proceedings of the Hamilton Association. [Hamilton, Ont.]: Printed for the Hamilton Association by the Spector Printing Co., [1884]-1899. url p. 117.
• List of Pteridophyta and Spermatophyta growing without cultivation in northeastern North America. Prepared by a Committee of the Botanical Club, American Association for the Advancement of Science. New York, 1894. url p. 174.
• Manual of the flowering plants of Iowa. [Lamoni, Iowa]Privately published, 1899. url .
• Memoirs of the Torrey Botanical Club. 5 1893 - 18 Durham, N.C.: Published for the Club by the Seeman Printery, 1889- url p. 174.
• Michigan flora: a list of the fern and seed plants growing without cultivation / prepared by W.J. Beal. [Lansing, Mich.]: State Board of Agriculture: 1904. url .
• Mountain wild flowers of America: a simple and popular guide to the names and descriptions of the flowers that bloom above the clouds / by Julia W. Henshaw. Boston: Ginn, 1906. url p. 135, p. 15, p. 377.
• Mountain wild flowers of America; a simple and popular guide to the names and descriptions of the flowers that bloom above the clouds, by Julia W. Henshaw. Boston, Ginn, 1906. url p. 135, p. 377, p. 377.
• Mountain wild flowers of Canada; a simple and popular guide to the names and descriptions of the flowers that bloom above the clouds, Julia W. Henshaw. Toronto, Briggs, 1906. url p. 377.
• Notes on the flora of Connecticut / [prepared by A.W. Driggs]. [Hartford]: State Board of Education, 1901. url p. 15.
• Proceedings of the Rochester Academy of Science. Rochester, N.Y.: The Academy.1889- url p. 22.
• Report of the Geological Survey of Ohio. Columbus, Nevins & Myers, state printers, 1873-93. url .
• Reports of the Survey. Botanical series. Minneapolis [etc.]1892- url p. 680, p. 681.
• Sensitive plant survey of the Tendoy Mountains, in the Beaverhead National Forest, Beaverhead County, Montana / prepared by Jim Vanderhorst; prepared for United States Forest Service, Beaverhead National Forest. Helena, Mt.: Montana Natural Heritage Program, [1995] url p. 63.
• The American midland naturalist. Notre Dame, Ind., University of Notre Dame. url p. 236.
• The Great Basin naturalist. 42 1982 Provo, Utah: M.L. Bean Life Science Museum, Brigham Young University, 1939-1999. url p. 159, welsh & reveal, page 279, p. 292, p. 293, p. 6, p. 82.
• The Journal of the Iowa Academy of Science: JIAS. Cedar Falls, Iowa: The Academy, 1988- url p. 136.
• The Labrador coast. A journal of two summer cruises to that region. New York: N.D.C. Hodges, 1891. url .
• The Labrador coast. New York, N. D. C. Hodges: [etc., etc.]1891. url p. 452.
• The Metaspermae of the Minnesota Valley: a list of the higher seed-producing plants indigenous to the drainage-basin of the Minnesota River / by Conway MacMillan. Minneapolis: Geological and Natural History Survey of Minnesota, 1892. url p. 680, p. 681.
• The Metaspermae of the Minnesota valley; a list of the higher seed-producing plants indigenous to the drainage-basin of the Minnesota river. Minneapolis[Harrison & Smith, State Printers]1892 url p. 680, p. 681.
• The Proceedings of the Iowa Academy of Science. Des moines, Iowa: The Academy, [1889-1987] url p. 109, p. 136.
• The flora of Scott and Muscatine counties. By W.D. Barnes, Fred Reppert [and] A.A. Miller. Davenport, Iowa, 1901 url p. 204.
• University of California publications in botany. Berkeley, Calif., University of California Press, 1902-2001. url p. 206.

Notes

Contributors

• Brands, S.J. (comp.) 1989-present. The Taxonomicon. Universal Taxonomic Services, Zwaag, The Netherlands. Accessed January 10, 2012.

Identifiers

• Biodiversity Heritage Library NamebankID: 2776817
• Zipcode Zoo Species Identifier: 4023961

Footnotes

1. "Arabis". in Flora of China Vol. 8 Page 113. Published by Science Press (Beijing) and Missouri Botanical Garden Press. Online at EFloras.org. [back]

©2004-2012 David Stang. All rights reserved.