Interesting Facts
Common Names
Common Names in English:
Willow Groundsel, Willow Ragwort
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 Barkleyanthus
Shrubs
, 100-200[-400+] cm (usually glabrous
, sometimes sparsely arachnose or glabrate
). Stems usually 1, erect
to lax
. Leaves cauline; alternate (clustered distally) ; weakly petiolate
; blades
weakly 3-nerved, lance-elliptic or lanceolate to lance-linear
, margins
obscurely dentate
to subentire
or entire, faces
usually glabrous. Heads radiate
, in cymiform or paniculiform
arrays (crowded in terminal
and axillary
clusters
). Calyculi 0 or of 1-2+ bractlets
. Involucres hemispheric
or campanulate
to weakly turbinate
, 5-8 mm diam. Phyllaries persistent
, 5-8+ in (1-) 2 series, erect, distinct
, elliptic
or oblong
to obovate
, equal, margins ± scarious
. Receptacles flat to convex
, deeply foveolate (margins of sockets
raggedly toothed
), epaleate. Ray florets (3-) 5(-8), pistillate
, fertile
; corollas yellow (laminae
linear-elliptic). Disc florets 14-25+, bisexual
, fertile; corollas yellow, tubes
longer
than to equaling narrowly funnelform
throats
, lobes
5, recurved, lance-linear; style branches: stigmatic
areas continuous, apices ± dilated-truncate. Cypselae ± prismatic
to obpyramidal
, 5-nerved, strigillose
to hirtellous; pappi persistent, of 60-80(-120), white, barbellulate
bristles
. x = 30.
Species 1: sw United
States, Mexico, Central America.[1]
Physical Description
Species Barkleyanthus salicifolius
Stems abundantly branched, arching
distally. Leaves
tapering to weakly defined petioles
; blades
3-10(-15) × 0.5-1.5
cm. Heads (3-) 8-16 in each array, arrays usually clustered.
Phyllaries 4-6(-8) mm, tips
green, obtuse
. Ray corollas
8-12+ mm.
Disc corollas (5-) 7-8+ mm. Cypselae (1.5-)
2-3 mm; pappi 5-6+ mm. 2n = 60. [source]
Barkleyanthus salicifolius is abundant and semiweedy through
much of Mexico and northern Central America; it barely enters the
flora
area. The flowering heads
are attractive and the species is
sometimes cultivated. [source]
Habit: Subshrub , Shrub
Flowers: Bloom Period: January, February, March, April, May. • Flower Color: yellow
Size/Age/Growth
Size: 4-6' tall.
Habitat
Open, rocky, disturbed sites; 700-1500 m [2].
Biology
Reproduction
Duration: Perennial
Growth
Sunlight: Sun Exposure: Full sun .
Moisture: Drought Tolerance: High
Temperature: Cold Hardiness: 9a, 9b, 10a, 10b, 11. (map)
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.
- Genus:
Barkleyanthus
()
- H.E. Robinson & R.D. Brettell, 1974
- Jarilla [For Theodore M. Barkley, 1934-2004, North American botanist]
- Specific epithet:
salicifolius
- (Kunth) H.Rob. & Brettell
- Botanical name: - Barkleyanthus salicifolius (Kunth) H.Rob. & Brettell
- Specific epithet:
salicifolius
- (Kunth) H.Rob. & Brettell
- Genus:
Barkleyanthus
(
- Family:
Compositae
(
- Order:
Asterales
(
- Superorder:
Campanulanae
(
- Subclass:
Asteridae
(
- Class:
Spermatopsida
(
- Subphylum:
Euphyllophytina
(
- Phylum:
Tracheophyta
(
- Subkingdom:
Viridaeplantae
(
- Kingdom:
Plantae
(
Synonyms
Cineraria salicifolia Kunth in A. von Humboldt et al. • Senecio salignus Dc.
Notes
Name
Status: Accepted Name
.
Comment: Data Providers: Govaerts World Compositae Checklist
A-G,
IPNI, MesoAmericana, Tropicos. GCC LSID: urn
:lsid:compositae.org:names:842E5D43-2895-43A0-9224-4F3822C87A79
Last scrutiny: 11-Aug-09
Similar Species
Members of the genus Barkleyanthus
ZipcodeZoo has pages for 1 species, subspecies, varieties, forms, and cultivars in this genus:
B. salicifolius (Willow Groundsel)
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
- Comprehensive index to the Flora of Guatemala / Terua P. Williams. 24 1977 [Chicago]: Field Museum of Natural History, 1977. url p. 24.
- Flora of Guatemala / Dorothy L. Nash, Louis O. Williams; genera contributed by Kenneth M. Becker. .. [et al.]. 24 1976 Chicago, Ill.: Field Museum of Natural History, 1976. url p. 418.
Notes
Contributors
- "Barkleyanthus salicifolius". in Flora of North America Vol. 20 Page 613, 614. Published by Oxford University Press. Online at EFloras.org.
- 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.) 1989-2005. Systema Naturae 2000. The Taxonomicon. Universal Taxonomic Services, Amsterdam, The Netherlands. [http://sn2000.taxonomy.nl/Taxonomicon/]. Access date: Nov 23, 2005
- GCC: Global Compositae Checklist. Release date: November 18, 2009
- Global Biodiversity Information Facility. Accessed February 28, 2008. http://www.gbif.org Mediated distribution data from 4 providers.
- Ruggiero M., Gordon D., Bailly N., Kirk P., Nicolson D. (2011). The Catalogue of Life Taxonomic Classification, Edition 2, Part A. In: Species 2000 & ITIS Catalogue of Life: 2011 Annual Checklist (Bisby F.A., Roskov Y.R., Orrell T.M., Nicolson D., Paglinawan L.E., Bailly N., Kirk P.M., Bourgoin T., Baillargeon G., Ouvrard D., eds). DVD; Species 2000: Reading, UK.
- USDA, ARS, National Genetic Resources Program. Germplasm Resources Information Network - (GRIN) [Online Database]. National Germplasm Resources Laboratory, Beltsville, Maryland. URL (April 26, 2008)
- USDA, NRCS. 2005. The PLANTS Database, Version 3.5 (http://plants.usda.gov). National Plant Data Center, Baton Rouge, LA 70874-4490 USA.
Data Sources
Accessed through GBIF Data Portal February 28, 2008:
- Arizona State University, International Institute for Species Exploration: Arizona State University Vascular Plant Herbarium
- Comisión nacional para el conocimiento y uso de la biodiversidad: Herbario del Instituto de Ecología, A.C., México (IE-BAJÍO)
- Comisión nacional para el conocimiento y uso de la biodiversidad: Herbario del Instituto de Ecología, A.C., México (IE-XAL)
- Missouri Botanical Garden
- UNIBIO, IBUNAM: Asteraceae
- USDA PLANTS: USDA PLANTS Database
Identifiers
- Biodiversity Heritage Library NamebankID: 2671918
- Catalogue of Life Accepted Name Code: Ast-23709
- Globally Unique Identifier: urn:lsid:ipni.org:names:184211-1
- GRIN Nomen Number: 452824
- Integrated Taxonomic Information System (ITIS) Taxonomic Serial Number (TSN): 509455
- Natural Heritage Network Species Identifier: PDAST8H2R0
- U.S.D.A. Plant Symbol: BASA5
- Zipcode Zoo Species Identifier: 24905
Footnotes
- Theodore M. Barkley "Barkleyanthus". in Flora of North America Vol. 20 Page 541, 614. Oxford University Press. Online at EFloras.org. [back]
- "Barkleyanthus salicifolius". in Flora of North America Vol. 20 Page 613, 614. Oxford University Press. Online at EFloras.org. [back]
