Interesting Facts
Common Names
Common Names in English:
American Saw-Wort
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
Species Saussurea americana
Plants 30-120+ cm; rootstocks
short, stout; herbage
loosely
tomentose
when young, glabrescent
, sometimes ± glandular
.
Stems 1-many, leafy, simple
or with ascending
branches. Leaves
cauline, usually more than 20, well distributed, proximal
and mid
with winged
petioles
to 6 cm, wings
sometimes decurrent 1-2 cm on
stems, blades
lanceolate to triangular-ovate, 5-15 cm, bases
cordate
to truncate
or tapering, margins
sharply dentate
, apices acute; mid
and distal usually sessile, smaller, narrower, bases tapering. Heads
5-30+ in tight to open corymbiform
arrays; (peduncles 0-5 cm). Involucres
10-15 mm.
Phyllaries in ca.
5 series, strongly unequal, outer
± ovate
, inner lanceolate, abaxial
faces
pale
green, distally
dark purplish to nearly black, loosely tomentose. Receptacles
naked. Florets 8-21; corollas usually pale lavender-blue to
dark purple (rarely white), 11-13 mm; tubes
5-6.5 mm, throats
1.5-2
mm, lobes
3.5-4 mm. Cypselae 4-6 mm; pappus bristles
brownish, outer 3-7 mm, inner 9-10 mm. [source]
Saussurea americana is closely related to an Asian species,
S. foliosa Ledebour. [source]
Habit: Forb/herb
Flowers: Bloom Period: July, August.
Habitat
Moist canyons , meadows, streamsides in montane forests ; 1000-2600 m
Typically found at an altitude of 0 to 2,174 meters (0 to 7,133 feet).[2]
Biology
Reproduction
Duration: Perennial
Taxonomy
- Domain:
Eukaryota
(
)
- Whittaker & Margulis,1978
- eukaryotes
- Kingdom:
Plantae
(
)
- Haeckel, 1866
- Plants
- Subkingdom:
Viridaeplantae
(
)
- Cavalier-Smith, 1981
- Phylum:
Tracheophyta
(
)
- Sinnott, 1935 ex Cavalier-Smith, 1998
- Vascular Plants
- Subphylum:
Euphyllophytina
(
)
- Class:
Magnoliopsida
(
)
- Brongniart, 1843
- Dicotyledons
- Subclass:
Asteridae
(
)
- Takhtajan, 1967
- Superorder:
Campanulanae
(
)
- Takhtajan Ex Reveal, 1992
- Order:
Asterales
(
)
- Lindley, 1833
- Family:
Compositae
(
)
- Giseke, 1792, nom. cons., nom. alt.
- Subfamily:
Carduoideae
(
)
- Tribe:
Cardueae
(
)
- Subtribe:
Carduinae
(
)
- Genus:
Saussurea
(
)
- A.P. de Candolle, 1810, nom. cons.
- Saw-wort [For Nicolas Théodore (17671845) and Horace Bénédict (17401799) de Saussure, Swiss naturalists]
- Specific epithet:
americana
- D. C. Eaton, Bot. Gaz. 6: 283. 1881.
- Botanical name: - Saussurea americana D.C. Eat. D. C. Eaton, Bot. Gaz. 6: 283. 1881.
- Specific epithet:
americana
- D. C. Eaton, Bot. Gaz. 6: 283. 1881.
- Genus:
Saussurea
(
- Subtribe:
Carduinae
(
- Tribe:
Cardueae
(
- Subfamily:
Carduoideae
(
- Family:
Compositae
(
- Order:
Asterales
(
- Superorder:
Campanulanae
(
- Subclass:
Asteridae
(
- Class:
Magnoliopsida
(
- Subphylum:
Euphyllophytina
(
- Phylum:
Tracheophyta
(
- Subkingdom:
Viridaeplantae
(
- Kingdom:
Plantae
(
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
- A manual of the flora of northern Idaho /Carl Epling and Joe Ewan. 1 1941 1941. url p. 27.
- Bulletin of the Torrey Botanical Club. 46 1919 New York: Torrey Botanical Club, 1870-1996 url p. 320, p. 499.
- Catalogue of scientific papers (1800-1900) Comp. by the Royal society of London. Cambridge, C. J. Clay and sons, 1867-1902; url p. 212.
- 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. 212.
- Contributions from the United States National Herbarium 3 1892-1896 Washington, D.C.: Smithsonian Institution Press, 1890- url p. 236, p. 283, p. 608, p. 611, p. 62.
- Elementary flora of the Northwest, Cincinnati [etc.]American Book Company[c1914] url .
- Flora of the northwest coast, including the area west of the summit of the Cascade Mountains, from the forty-ninth parallel south to the Calapooia Mountains on the south border of Lane County, Oregon. Lancaster, Pa., Press of the New Era Printing Company, 1915. url .
- Flora of the northwest coast: including the area west of the summit of the Cascade Mountains, from the forty-ninth parallel south to the Calapooia Mountains on the south border of Lane County, Oregon / by Charles V. Piper and R. Kent Beattie. Lancaster, Pa.: Press of the New era printing company, 1915. url p. 396.
- Flora of the state of Washington / by Charles V. Piper. Washington: G.P.O., 1906 url p. 57, p. 611.
- Flora of the state of Washington. By Charles V. Piper. Washington, Govt. Print. Off., 1906. url p. 611.
- 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 .
- Mount Rainier: a record of exploration / edited by Edmond S. Meany. New York: Macmillan, 1916. url p. 259.
- Proceedings of the Entomological Society of Washington. Washington, etc.: Entomological Society of Washington url p. 614, p. 790, p. 793.
- 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. 80.
- Syllogeus. Ottawa, National Museum of Natural Sciences, 1972-1995. url p. 118, p. 34, p. 35, p. 40, p. 43, p. 46, p. 47, p. 61, p. 64, p. 94.
- The Canadian field-naturalist. Ottawa, Ottawa Field-Naturalists' Club. url p. 520.
- The Mountaineer. Seattle, The Mountaineers, 1907-1921. url p. 116.
- The Proceedings of the Iowa Academy of Science. Des moines, Iowa: The Academy, [1889-1987] url p. 449.
- Lipschitz, S. J. 1979. Rod Saussurea DC. (Asteraceae). Leningrad.
Notes
Contributors
- Brands, S.J. (comp.) 1989-present. The Taxonomicon. Universal Taxonomic Services, Zwaag, The Netherlands. Accessed January 15, 2012.
Data Sources
Accessed through GBIF Data Portal February 02, 2008:
- Berkeley Natural History Museums, University and Jepson Herbaria DiGIR provider
- Canadian Museum of Nature, Canadian Museum of Nature Herbarium
- Oregon State University, Vascular Plant Collection
- USDA PLANTS, USDA PLANTS Database
- University of Alaska Museum of the North, University of Alaska Museum of the North Herbarium
- University of Washington Burke Museum, Vascular Plant Collection - University of Washington Herbarium
Identifiers
- Biodiversity Heritage Library NamebankID: 2657655
- Catalogue of Life Accepted Name Code: ITS-36078
- Integrated Taxonomic Information System (ITIS) Taxonomic Serial Number (TSN): 36078
- U.S.D.A. Plant Symbol: SAAM3
- Zipcode Zoo Species Identifier: 58138
Footnotes
- 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]
- Mean = 1,216.860 meters (3,992.323 feet), Standard Deviation = 493.180 based on 66 observations. Altitude information for each observation from British Oceanographic Data Centre. [back]
