Saussurea densa

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

Interesting Facts

Common Names

Description

Family Compositae

The largest family of flowering plants , the Compositae (Asteraceae), comprising about 1,100 genera and more than 20,000 species and characterized by many small flowers arranged in a head looking like a single flower and subtended by an involucre of bracts. A head may consist of both ray flowers and disk flowers, as in the sunflower, of disk flowers only, as in the burdock, or of ray flowers only, as in the dandelion.

Genus Saussurea

Perennials , 5-120+ cm; herbage tomentose or glabrescent , not spiny . Stems erect or ascending , simple or branched. Leaves basal or cauline (sometimes cauline only), sessile or petiolate ; blade margins entire or dentate to pinnately lobed , faces glabrous to densely tomentose, glandular or eglandular . Heads discoid , borne singly or in corymbiform arrays. Involucres ovoid to campanulate or ± turbinate . Phyllaries many in 3-5(-10+) series, subequal to strongly unequal, appressed or not, ovate to lanceolate, margins entire, toothed , or lobed, apices obtuse or acute, appendaged or not, not spine-tipped. Receptacles flat or convex , epaleate, smooth , usually subulate-scaly, sometimes bristly or naked. Florets 10-20; corollas white to blue or purple, tubes slender, abruptly expanded to throats , lobes linear ; anther bases short-tailed, apical appendages linear, acute; style branches: fused portions with minutely hairy subterminal nodes, distinct portions oblong to linear, short-papillate. Cypselae oblong, ± angled , cylindric or 4-5-angled, ribs (when present) smooth or roughened, apices entire, glabrous or minutely glandular, attachment scars basal; pappi usually of 2 series, outer of readily falling, short bristles , inner persistent or falling as unit , of basally connate , usually longer , plumose bristles. x = 13, 14, 16, 17, 18, 19?.

Species 300-400: North America, Eurasia , 1 in Australia.

Saussurea is a notoriously difficult, largely Asiatic genus with species boundaries often indistinct.[1]

Physical Description

Biology

Reproduction

Duration: Perennial

Taxonomy

Synonyms

Saussurea nuda densa (Hook.) G. W. Douglas • Saussurea nuda Ledeb. var. densa (Hook.) Hultén • Saussurea nuda var. densa (Hook.) Hultén

Notes

Name Status: Accepted Name . Latest taxonomic scrutiny: 15-Mar-2000

Similar Species

Members of the genus Saussurea

ZipcodeZoo has pages for 13 species, subspecies, varieties, forms, and cultivars in this genus:

S. alpina (Alpine Sawwort) · S. amara (Saussurea) · S. americana (American Saw-Wort) · S. angustifolia (Narrowleaf Saw-Wort) · S. angustifolia var. angustifolia (Narrowleaf Saw-Wort) · S. angustifolia var. yukonensis (Narrowleaf Saw-Wort) · S. angustifolia yukonensis (Narrowleaf Saw-Wort) · S. densa (Clustered Sawwort) · S. nuda (Nutty Saw-Wort) · S. tilesii (Tiles' Saussurea) · S. tschuktschorum (Tschuktsch's Saussurea) · S. viscida (Sticky Saw-Wort) · S. weberi (Weber's Saw-Wort)

More Info

• Search for Pictures: images.google.com
• Search for Scholarly Articles: Google Scholar
• Search using Scientific Name and Vernacular Names: All the Web | AltaVista Canada | AltaVista | Excite | Google | HotBot | Lycos
• Search using Specialized Databases: GenBank | Medline | Scirus | CISTI/CAL | Agricola Periodicals | Agricola Books

Further Reading

• Alpine flora of the Canadian Rocky Mountains. Illustrated with water-colour drawings and photographs by Mrs. Charles Schäffer. New York, London, G. P. Putnam's sons, 1907. url , , p. xxiv.
• Botanical survey of the Goat Flat proposed research natural area, Deerlodge National Forest/ by Peter L. Achuff and Lisa S. Roe. Helena, Mont.: Montana Natural Heritage Program[1992] url p. 7.
• Contributions from the Botanical Laboratory. Philadelphia: University of Pennsylvania Press, 1892- url .
• Contributions from the New York Botanical Garden. New York: The Garden, 1899- url p. 541.
• Flora of southern British Columbia and Vancouver Island: with many references to Alaska and northern species / by Joseph Kaye Henry. Toronto: W.J. Gage, c1915. url p. 322.
• Key to the Rocky Mountain flora. Colorado, Utah, Wyoming, Idaho, Montana, Saskatchewan, Alberta, and parts of Nebraska, South Dakota, North Dakota, and British Columbia. New York, [c1919] url .
• Key to the Rocky Mountain flora; Colorado, Utah, Wyoming, Idaho, Montana, Saskatchewan, Alberta, and parts of Nebraska, South Dakota, North Dakota, and British Columbia. New York, 1919. url p. 270.
• Rare plant inventory of the outstanding natural areas of the Rocky Mountain Front / prepared for United States Department of Interior, Bureau of Land Management; prepared by Lisa Ann Schassberger. Helena, Mont.: Montana Natural Heritage Program, [1988] url p. 2.
• Report on the conservation status of Erigeron lackschewitzii: a candidate threatened species / Bonnie L. Heidel. Helena, Mont.: Montana Natural Heritage Program, [1993] url p. 15.
• Sensitive plant surveys in the Big Belt and Elkhorn Mountains, U.S.D.A. Forest Service, Region 1, Helena National Forest, Montana / prepared by Jackie M. Poole and Bonnie L. Heidel; prepared for Helena National Forest. Helena, Mont.: Montana Natural Heritage Program, [1993] url .
• Sensitive, threatened, and endangered vascular plants of Montana / Peter Lesica, J. Stephen Shelly. Helena, Mont.: Montana Natural Heritage Program, Montana State Library, 1991. url p. 51, p. 88.
• Studies on Rocky Mountain flora. New York, New York Botanical Garden, 1899-1913. url p. 541.
• Syllogeus. Ottawa, National Museum of Natural Sciences, 1972-1995. url p. 118, p. 94.
• The Canadian field-naturalist. 42 1928 Ottawa, Ottawa Field-Naturalists' Club. url [fig. 2] , p. 114, p. 237, p. 338, p. 368, p. 448, p. 581.
• The flora of Canada, by J. M. Macoun and M. O. Malte. Ottawa: Government printing bureau, 1917. url p. 11.
• Wild flowers of the North American mountains. New York, McBride, 1917. url p. 300, p. 374, p. 43.
• Lipschitz, S. J. 1979. Rod Saussurea DC. (Asteraceae). Leningrad.

Notes

Contributors

• Bisby, F.A., Y.R. Roskov, M.A. Ruggiero, T.M. Orrell, L.E. Paglinawan, P.W. Brewer, N. Bailly, J. van Hertum, eds (2007). Species 2000 & ITIS Catalogue of Life: 2007 Annual Checklist. Species 2000: Reading, U.K.
• Brands, S.J. (comp.) 1989-present. The Taxonomicon. Universal Taxonomic Services, Zwaag, The Netherlands. Accessed January 15, 2012.
• Global Biodiversity Information Facility. Accessed February 28, 2008. http://www.gbif.org Mediated distribution data from provider.
• USDA, NRCS. 2005. The PLANTS Database, Version 3.5 (http://plants.usda.gov). National Plant Data Center, Baton Rouge, LA 70874-4490 USA.

Identifiers

• Biodiversity Heritage Library NamebankID: 2669194
• Catalogue of Life Accepted Name Code: ITS-505018
• Globally Unique Identifier: urn:lsid:ipni.org:names:242204-1
• Integrated Taxonomic Information System (ITIS) Taxonomic Serial Number (TSN): 505018
• U.S.D.A. Plant Symbol: SADE3
• Zipcode Zoo Species Identifier: 61518

Footnotes

1. David J. Keil "Saussurea". in Flora of North America Vol. 19, 20 and 21 Page 58, 83, 165. Oxford University Press. Online at EFloras.org. [back]

©2004-2012 David Stang. All rights reserved.