Jump to content

Senecio ampullaceus: Difference between revisions

From Wikipedia, the free encyclopedia
Browse history interactively
← Previous editNext edit →
Content deleted Content added
VisualWikitext
Yobot (talk | contribs)
Bots
4,733,870 edits
m →‎Description: Replace obsolete <br> tag attributes per Wikipedia:HTML5#Other_obsolete_attributes and/or other changes using AWB (10811)
Rescuing 1 sources. #IABot
Line 33: Line 33:
|range_map_caption = Current range of ''S. ampullaceus''.
|range_map_caption = Current range of ''S. ampullaceus''.
|}}
|}}
'''''Senecio ampullaceus''''' also known as Texas ragwort,<ref name="NRCS"/> Texas squaw-weed, Texas groundsel,<ref name="tamu">{{cite web
'''''Senecio ampullaceus''''' also known as Texas ragwort,<ref name="NRCS"/> Texas squaw-weed, Texas groundsel,<ref name="tamu">{{cite web|url=http://texnat.tamu.edu/CMPLANTS/toxic/Acrobat/Texas%20groundsel.pdf |title=Texas Groundsel, Texas Squaw-Weed |accessdate=2008-04-10 |author=Texas A&M University |authorlink=Texas A&M University |format=PDF |deadurl=yes |archiveurl=https://web.archive.org/20061017223546/http://texnat.tamu.edu:80/cmplants/toxic/Acrobat/Texas%20groundsel.pdf |archivedate=October 17, 2006 }}</ref>
| url = http://texnat.tamu.edu/CMPLANTS/toxic/Acrobat/Texas%20groundsel.pdf
| title = Texas Groundsel, Texas Squaw-Weed
| accessdate = 2008-04-10
| author = Texas A&M University
| authorlink = Texas A&M University
| format = PDF
}} {{Dead link|date=October 2010|bot=H3llBot}}</ref>
and Texas butterweed<ref name="PFG">{{cite book
and Texas butterweed<ref name="PFG">{{cite book
| last = Peterson Field Guide
| last = Peterson Field Guide

Revision as of 00:39, 23 February 2016

Senecio ampullaceus
Texas ragwort
Scientific classification
Kingdom:
Plantae
(unranked):
Angiosperms
(unranked):
Eudicots
(unranked):
Asterids
Order:
Asterales
Family:
Asteraceae
Tribe:
Senecioneae
Genus:
Senecio
Species:
S. ampullaceus
Binomial name
Senecio ampullaceus
Current range of S. ampullaceus.

Senecio ampullaceus also known as Texas ragwort,[1] Texas squaw-weed, Texas groundsel,[3] and Texas butterweed[4] is a species of Senecio in the family Asteraceae and gets its Latin name ampullaceus from its flask shaped flower-head[5] and is a recommended native for landscape use in Texas where it came from.[6]

Description

The seedlings of S. ampullaceus often have a purplish color on the undersides of their leaves in the winter, especially along their midrib.[3] Flowering in early–mid spring,[7] Texas ragwort is a tall annual,[8] growing to from 20 centimeters (7.9 in) to 80 centimeters (31 in) tall and similar to S. quaylei.[7]

Stems and leaves: The leaves with broadly winged leaf stalks, grow from single stems; the nodes between leaves getting shorter and shorter higher on the stem. Ovate leaves with pointed tips 3 centimeters (1.2 in) to 10 centimeters (3.9 in) long by 1.5 centimeters (0.59 in) to 4 centimeters (1.6 in) wide with tapered bases. Leaves at the lower portion of the plant have more teeth on their edges than the leaves at the upper portion of the mature plant.[7]

Stems and leaves are covered loosely and unevenly with a mat of fine hairs, occasionally having no hairs.[7]

Flowers: Flowering stalks have 10 to 30 flower heads which as a group make a flat top to the whole plant. Each flower head is surrounded by 2 to 8 bractlets or mini-leaves, each 1 millimeter (0.039 in) to more than 2 millimeters (0.079 in). Approximately 13 green to grayish bracts, 7 millimeters (0.28 in) to 10 millimeters (0.39 in) long surrounding 8 ray florets and an 8 millimeters (0.31 in) to 10 millimeters (0.39 in) corolla.[7]

Fruits: One seeded fruits with rigid pappus.[7]

Roots: Roots relatively thin and branching.[7]

Distribution

S. ampullanceus prefers altitudes of 100 meters (330 ft) to 800 meters (2,600 ft) in open sandy or disturbed sites.[7]

Native:

Native range of S. ampullaceus
Nearctic:
North-central United States: Missouri
Southeastern United States: Arkansas
South-central United States: Texas[1]

or

Southeastern United States: Arkansas
South central United States: Texas[9]

Current:

Nearctic:
North-central United States: Missouri, Oklahoma
Southeastern United States: Arkansas
South-central United States: Texas[1][10][11]

Varieties or subspecies which are synonyms

  • Senecio ampullaceus var. floccosus Engelm. & A. Gray
  • Senecio ampullaceus var. glaberrimus Engelm. & A. Gray[7][12]

References

  1. ^ a b c d Natural Resources Conservation Service (NRCS). "PLANTS Profile, Senecio ampullaceus Hook". The PLANTS Database. United States Department of Agriculture,. Retrieved 2008-04-08.{{cite web}}: CS1 maint: extra punctuation (link)
  2. ^ Integrated Taxonomic Information System Organization (ITIS). "Senecio ampullaceus Hook". Integrated Taxonomic Information System on-line database. Retrieved 2008-04-08.
  3. ^ a b Texas A&M University. "Texas Groundsel, Texas Squaw-Weed" (PDF). Archived from the original (PDF) on October 17, 2006. Retrieved 2008-04-10. {{cite web}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
  4. ^ Peterson Field Guide, Theodore F. Niehaus (1998) [1984]. "Tall-stemmed Butterweeds". A Field Guide to Southwestern and Texas Wildflowers. The Peterson Field Guide Series. Illustrations by Charles L. Ripper. New York, New York 100003: Houghton Mifflin Company. pp. 449 pages. ISBN 0-395-93612-8. Retrieved 2008-04-09. {{cite book}}: External link in |chapterurl= (help); Unknown parameter |chapterurl= ignored (|chapter-url= suggested) (help)CS1 maint: location (link)
  5. ^ Holloway, Joel Ellis; Neill, Amanda (2005). "Section 36". A Dictionary of Common Wildflowers of Texas & the Southern Great Plains. TCU Press. p. 2005. ISBN 0-87565-309-X. Retrieved 2008-04-08. {{cite book}}: External link in |chapterurl= (help); Unknown parameter |chapterurl= ignored (|chapter-url= suggested) (help)
  6. ^ Federal Highway Administration (2005-07-11). "Native Plants for Landscape Use in Texas". State Plant Listings. United States Department of the Interior. Retrieved 2008-04-08.
  7. ^ a b c d e f g h i Flora of North America. "32. Senecio ampullaceus Hooker". 20: Page 548, 561. Retrieved 2008-04-08. {{cite journal}}: Cite journal requires |journal= (help)
  8. ^ University of Texas at Austin. "Senecio ampullaceus". Image Archive of Central Texas Plants. University of Texas at Austin. Retrieved 2008-04-08.
  9. ^ Flora of Missouri. "Senecio ampullaceus Hook". 2: Page 1654. Retrieved 2008-04-08. {{cite journal}}: Cite journal requires |journal= (help)
  10. ^ Walter C. Holmes, Jason R. Singhurst, Steve G. Powers (September 2006). "SENECIO AMPULLACEUS (ASTERACEAE): A WEST GULF COASTAL PLAIN ENDEMIC NEW TO OKLAHOMA" (PDF). Phytologia. 88 (2): 193–195. Retrieved 2008-04-08.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  11. ^ Ozarks Regional Herbarium (2002-06-26). "ADVENTIVE TAXA OF MISSOURI". CONTRIBUTIONS OF THE OZARKS REGIONAL HERBARIUM. Missouri State University. Retrieved 2008-04-08.
  12. ^ Missouri Botanical Garden. "Senecio ampullaceus Hook". Missouri Botanical Garden Press. Retrieved 2008-04-08.

Data related to Senecio ampullaceus at Wikispecies Media related to Senecio ampullaceus at Wikimedia Commons

Retrieved from "https://en.wikipedia.org/w/index.php?title=Senecio_ampullaceus&oldid=706382013"