Hieracium horridum

Taxobox
name = "Hieracium horridum"


image_width = 220px
regnum = Plantae
divisio = Magnoliophyta
classis = Magnoliopsida
ordo = Asterales
familia = Asteraceae
genus = "Hieracium"
species = "H. horridum"
binomial = "Hieracium horridum"
binomial_authority = Friescite web
url = http://plants.usda.gov/java/profile?symbol=HIHO
title = PLANTS Profile for Hieracium horridum Fr. prickly hawkweed
accessdate = 2007-12-26
author = Natural Resources Conservation Service
authorlink = Natural Resources Conservation Service
year = 2007
format = HTML
work = The PLANTS Database
publisher = USDA, Baton Rouge, LA 70874-4490 USA. ]
synonyms = "Pilosella horrida" (Fr.) F.W. Schultz & Sch. Bip.cite web
url = http://test.tropicos.org/Name.aspx?nameid=02710495
title = Tropios beta: details for Hieracium horridum Fr.
accessdate = 2007-12-26
author = Missouri Botanical Garden
authorlink = Missouri Botanical Garden
date = 2007
format = HTML
publisher = Missouri Botanical Garden - 4344 Shaw Boulevard - Saint Louis, Missouri 63110 ] "Hieracium horridum" subsp. "horridum" Zahncite web
url = http://www.ipni.org/ipni/idPlantNameSearch.do?id=122300-2
title = Plant Name Details Hieracium horridum
accessdate = 2007-12-26
author = International Plant Names Index
authorlink = IPNI
format = HTML ]
range_

---

range_map_width = 250px
range_map_caption = Hieracium horridum distribution

"Hieracium horridum",cite web
url = http://www.calflora.net/bloomingplants/shaggyhawkweed.html
title = Shaggy Hawkweed
accessdate = 2007-12-26
last = Charters
first = Michael L.
format = HTML
work = Wildflowers and Other Plants of Southern California ] known as the Prickly Hawkweed or Shaggy Hawkweed, gets its name from the long, dense, shaggy white to brown hairs (trichomes) which cover all of the plant partscite book
last = Peterson Field Guide
first = Theodore F. Niehaus
authorlink = Peterson Field Guide
others = Illustrations by Charles L. Ripper
title = Pacific States Wildflowers
origyear = 1976
accessdate = 2007-12-26
series = The Peterson Field Guide Series
publisher = Houghton Mifflin Company
location = New York, New York 100003
isbn = 0-395-91095-1
pages = page 220 ] of this native western North American perennial plant.cite web
url = http://www.ars-grin.gov/cgi-bin/npgs/html/taxon.pl?452952
title = Taxon: Hieracium horridum Fr.
accessdate = 2007-12-26
author = Germplasm Resources Information Network
authorlink = Germplasm Resources Information Network
format = HTML
work = (GRIN) Online Database
publisher = USDA, ARS, National Genetic Resources Program ]

"H. horridum" possesses oblong leaves along the stems of this convert|4|in|cm|0|lk=on to convert|15|in|cm|0 tall hairy plant with 11-12 bright yellow flowers at the top of each flower head, which is convert|.315|in|mm|0 to convert|.354|in|mm|0 in diameter.cite journal
last = Flora of North America
authorlink =Flora of North America
title = Hieracium horridum Fries, Uppsala Univ. Årsskr. 1862
journal = Flora of North America North of Mexico
volume =Volumes 19, 20 and 21
pages =pages 278, 283, 292
publisher =Flora of North America Association
location = New York and Oxford
url =http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=250066944
accessdate = 2007-12-26 ] It flowers between late June and August.

Like all members of the Asteraceae family, the flowers are actually florets comprised of many ray corolla, each ray its own stamen. The stems and leaves produce a milky substance when broken.cite web
url = [Hieracium
title = ]
accessdate = 2007-12-26
year = 2007
format = HTML ]

Distribution

"Hieracium horridum"'s habitat is in dry rocky places within mountainous coniferous forestscite web
url = http://www.calflora.net/bloomingplants/shaggyhawkweed.html
title = Shaggy Hawkweed
accessdate = 2007-12-26
last = Charters
first = Michael L.
format = HTML
work = Wildflowers and Other Plants of Southern California ] in Oregon, California and Nevada at elevations between convert|5000|ft|m|0|lk=on and convert|12000|ft|m|0.

References

External links

*cite web
url = http://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=37711
title = Standard Report Hieracium horridum Fries
accessdate = 2007-12-26
author = Integrated Taxonomic Information System (ITIS)
authorlink = Integrated Taxonomic Information System
format = HTML
*cite book
last = Bayerische botanische Gesellschaft, Regensburg
coauthors = Jena : G. Fischer [etc.]
title = Flora oder Allgemeine botanische Zeitung
url = http://www.botanicus.org/page/54664
format = HTML
accessdate = 2007-12-26
edition = 45
year = 1862
publisher = Missouri Botanical Garden
location = 4344 Shaw Boulevard - Saint Louis, Missouri 63110
id = QK1.F418
*cite web
url = http://www.geocities.com/royvandehoek/sangabrielflora1919ivan.htm
title = The Flora of the Pine Belt of the San Antonio Mountains of Southern California
accessdate = 2007-12-26
coauthors = Elna Sunquist Bakker and Robert Jan 'Roy' van de Hoek
date = 1919 Reprinted with Editing 2003-2005
format = HTML
work = Plant World
*cite web
url = http://tchester.org/sb/plants/guides/devils_slide.html
title = Plant Guide to Devils Slide Trail, San Jacinto Mountains
accessdate = 2007-12-26
coauthors = Tom Chester, James Dillane and Jane Strong
year = 2002-2007
format = HTML
work = [http://tchester.org/sb/plants/floras/sj.html Flora of San Jacinto Mountain]
quote = This is a working list, about which we make no guarantees at all until we officially release it. Use at your own risk!
*cite web
url = http://www.sfsu.edu/~sierra/flora.htm
title = FLORA
accessdate = 2007-12-26
author = Sierra Nevada Field Campus, San Francisco State University
authorlink = San Francisco State University
format = HTML
work = Preliminary list of species within a 60 mile radius of Sierra Nevada Field Campus.
*cite book
last = Grossi
first = Mark
title = California Sierra Nevada Book:Devils Postpile National Monument
url = http://www.sherpaguides.com/california/mountains/eastern_sierra/devils_postpile_national_monument.html
format = HTML
accessdate = 2007-12-26
year = 2000
month = September
chapter = Longstreet Highroad Guide to the California Sierra Nevada
publisher = Lenz Design
location = Decatur, GA
isbn = 1-56352-592-5
pages = Rainbow Falls