Interesting Facts
Common Names
Common Names in English:
Arizona Cottonrose, Arizona Filago
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 Filago
Annuals
, (1-) 5-40 cm. Stems [0] 1, ± erect
, or 2-7[-10+], ± ascending
[prostrate
]. Leaves cauline [basal]; alternate; blades
lanceolate to oblanceolate
[spatulate
or ± round
]. Heads in (dense, spheric [hemispheric
]) glomerules
of [2-]8-35+ in ± dichasiiform arrays [borne singly]. Involucres 0 or inconspicuous. Phyllaries usually 0, rarely 1-4, unequal (similar to paleae). Receptacles cylindric
to clavate
(heights
[2-]5-15 times diams.), glabrous
. Pistillate
paleae (except usually innermost) ± persistent
[falling], ± erect to ascending; bodies with 5+ nerves
(nerves ± parallel, obscure
), lanceolate to ovate
, open to ± folded (each at most enfolding, not enclosing a floret) ; wings
erect to recurved (apices acuminate to aristate
). Innermost paleae usually all pistillate, in some species bisexual
and pistillate, persistent or tardily falling, usually 5, erect to ascending [spreading
] (scarcely enlarged) in fruit, shorter than other pistillate paleae; bodies lanceolate to ovate. Pistillate florets [12-]27-40+. Functionally staminate
florets 0. Bisexual florets (1-) 2-9(-11) ; corolla lobes
4, ± equal. Cypselae brown, ± monomorphic
: terete
to ± compressed
, cylindric to ± obovoid
, usually straight, not gibbous
, faces
papillate
to muricate
[glabrous, smooth
], dull
; corolla scars
apical [subapical
]; pappi: outer pistillate 0, inner pistillate and bisexual of [3-]13-21 bristles
(visible in heads
). x = 14.
Species 12(-23) : introduced
; Europe, w Asia, n Africa, Atlantic Islands, introduced in North America, Australia.
The name
Filago has been used also for the genus now usually recognized as Evax Gaertner. Here Filago, in the narrow sense, contains twelve Old World species. Six species long included
in Filago in North America are here separated as Logfia.
Filago species grow in open, dry or somewhat moist habitats
of arid
, semiarid, Mediterranean, and humid-temperate to subtropical
climates. The species in the flora
grow in disturbed
habitats; neither appears to be aggressively weedy.[1]
Physical Description
Habit: Forb/herb
Biology
Reproduction
Duration: Annual
Growth
Sunlight: Sun Exposure: Full Sun .
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:
Spermatopsida
()
- Brongniart, 1843
- Subclass:
Asteridae
()
- Takhtajan, 1967
- Superorder:
Campanulanae
()
- Takhtajan Ex Reveal, 1992
- Order:
Asterales
()
- Lindley, 1833
- Family:
Compositae
()
- Giseke, 1792, nom. cons., nom. alt.
- Subfamily:
Asteroideae
()
- Tribe:
Gnaphalieae
()
- Subtribe:
Gnaphaliinae
()
- Genus:
Filago
()
- C. Linnaeus, 1753
- Herba impia [Latin filum, thread, and -ago, possessing or resembling, alluding to abundant cottony indument]
- Specific epithet:
arizonica
- A.Gray
- Botanical name: - Filago arizonica A.Gray
- Specific epithet:
arizonica
- A.Gray
- Genus:
Filago
(
- Subtribe:
Gnaphaliinae
(
- Tribe:
Gnaphalieae
(
- Subfamily:
Asteroideae
(
- Family:
Compositae
(
- Order:
Asterales
(
- Superorder:
Campanulanae
(
- Subclass:
Asteridae
(
- Class:
Spermatopsida
(
- Subphylum:
Euphyllophytina
(
- Phylum:
Tracheophyta
(
- Subkingdom:
Viridaeplantae
(
- Kingdom:
Plantae
(
Synonyms
Oglifa arizonica (Gray) Chrtek and Holub
Notes
Name
Status: Accepted Name
.
Comment: Data Providers: CONABIO, Govaerts World Compositae Checklist
A-G, IPNI, Tropicos. GCC LSID: urn
:lsid:compositae.org:names:A8D63A57-FE33-4DC8-B98F-17C205F704A6
Last scrutiny: 13-Aug-09
Similar Species
Members of the genus Filago
ZipcodeZoo has pages for 5 species, subspecies, varieties, forms, and cultivars in this genus:
F. arizonica (Arizona Cottonrose) · F. californica (California Cottonrose) · F. depressa (Dwarf Cottonrose) · F. pyramidata (Broadleaf Cottonrose) · F. vulgaris (Burrdaisytree)
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
- Allan Hancock Pacific expeditions. [Reports] Los Angeles, University of Southern California Press. url p. 313, p. 383.
- American plants. .. [Descriptions, bibliographical notes, synonymy, and other information, comp. from many sources] Charles Russell Orcutt, editor. San Diego, Calif., [1907]-1910. url p. 595.
- Contributions from the United States National Herbarium 1 1890-1895 Washington, D.C.: Smithsonian Institution Press, 1890- url p. 408.
- Leaflets of western botany. San Fransisco:[J. T. Howell], 1932-1966. url p. 271, p. 48, p. 76.
- Memoirs of the California Academy of Sciences. San Francisco: The Academy, 1868- url p. 187, p. 81.
- Occasional papers - San Diego Society of Natural History. 1949 San Diego, The Society. url p. 144, p. 144.
- Phytologia. Bronx Park, New York, H.A. Gleason and H.N. Moldenke, url p. 101, p. 81.
- Proceedings of the California Academy of Sciences, 4th series. San Francisco, California Academy of Sciences. url p. 398, p. 418, p. 423, p. 440.
- Proceedings of the San Diego Society of Natural History. 1992 [San Diego, Calif.]: San Diego Society of Natural History, 1990- url fig. 15, page 19.
- Wagenitz, G. 1969. Abgrenzung und Gliederung der Gattung Filago L. s.l. (Compositae-Inuleae). Willdenowia 5: 395-444.
- Wagenitz, G. 1976. Two species of the "Filago germanica" group (Compositae-Inuleae) in the United States. Sida 6: 221-223.
Notes
Contributors
- Brands, S.J. (comp.) 1989-present. The Taxonomicon. Universal Taxonomic Services, Zwaag, The Netherlands. Accessed January 11, 2012.
Data Sources
Accessed through GBIF Data Portal February 16, 2008:
- Berkeley Natural History Museums, University and Jepson Herbaria DiGIR provider
- School of Life Sciences, Arizona State University, Arizona State University Vascular Plant Herbarium
- School of Life Sciences, Arizona State University, The Deaver Herbarium, Northern Arizona University
Identifiers
- Biodiversity Heritage Library NamebankID: 2658554
- Catalogue of Life Accepted Name Code: Ast-18074
- Global Biodiversity Information Facility Taxonkey: 13749413
- Globally Unique Identifier: urn:lsid:ipni.org:names:207838-1
- Integrated Taxonomic Information System (ITIS) Taxonomic Serial Number (TSN): 37371
- Natural Heritage Network Species Identifier: PDAST3U010
- U.S.D.A. Plant Symbol: OGAR
- Zipcode Zoo Species Identifier: 37367
Footnotes
- James D. Morefield "Filago". in Flora of North America Vol. 19, 20 and 21 Page 26, 28, 385, 387, 444, 447, 448, 461. Oxford University Press. Online at EFloras.org. [back]
