Silphium laciniatum: Difference between revisions

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{{SPlantbox
{{SPlantbox
|familia=Asteraceae
|familia=Asteraceae
|genus=Silphium  
|genus=Silphium
|species=laciniatum  
|species=laciniatum
|common_name=Compass plant
|common_name=Compass plant
|name_ref=Flora - A Gardener's Encyclopedia
|name_ref=Flora - A Gardener's Encyclopedia
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|Max wd metric=ft
|Max wd metric=ft
|width_ref=Flora - A Gardener's Encyclopedia
|width_ref=Flora - A Gardener's Encyclopedia
|lifespan=perennial
|exposure=sun, part-sun
|exposure=sun, part-sun
|sun_ref=Flora - A Gardener's Encyclopedia
|sun_ref=Flora - A Gardener's Encyclopedia
|features=flowers
|features=flowers, drought tolerant
|flower_season=early summer, mid summer, late summer
|flower_season=early summer, mid summer, late summer
|flower_ref=Flora - A Gardener's Encyclopedia
|flower_ref=Flora - A Gardener's Encyclopedia
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|usda_ref=Flora - A Gardener's Encyclopedia
|usda_ref=Flora - A Gardener's Encyclopedia
|max_zone=9
|max_zone=9
|image=Upload.png
|image=Compass_plant.jpg
|image_width=240
|image_width=180
}}
__NOTOC__{{Plantbox
| name = ''LATINNAME''  <!--- replace LATINNAME with the actual latin name -->
| common_names =    <!--- if multiple, list all, if none, leave blank -->
| growth_habit = ?  <!--- tree, shrub, herbaceous, vine, etc -->
| high = ?  <!--- 1m (3 ft) -->
| wide =    <!--- 65cm (25 inches) -->
| origin = ?  <!--- Mexico, S America, S Europe, garden, etc -->
| poisonous =    <!--- indicate parts of plants which are known/thought to be poisonous -->
| lifespan =    <!--- perennial, annual, etc -->
| exposure = ?  <!--- full sun, part-sun, semi-shade, shade, indoors, bright filtered (you may list more than 1) -->
| water = ?  <!--- frequent, regular, moderate, drought tolerant, let dry then soak -->
| features =    <!--- flowers, fragrance, fruit, naturalizes, invasive -->
| hardiness =    <!--- frost sensitive, hardy, 5°C (40°F), etc -->
| bloom =    <!--- seasons which the plant blooms, if it is grown for its flowers -->
| usda_zones = ?  <!--- eg. 8-11 -->
| sunset_zones =    <!--- eg. 8, 9, 12-24, not available -->
| color = IndianRed
| image = Upload.png  <!--- Freesia.jpg -->
| image_width = 240px    <!--- leave as 240px if horizontal orientation photo, or change to 180px if vertical -->
| image_caption =    <!--- eg. Cultivated freesias -->
| regnum = Plantae  <!--- Kingdom -->
| divisio =  <!--- Phylum -->
| classis =    <!--- Class -->
| ordo =    <!--- Order -->
| familia =    <!--- Family -->
| genus =
| species =
| subspecies =
| cultivar =
}}
}}
'''''Silphium laciniatum''''' ('''Compass Flower''', '''Compass Plant''' or '''Rosinweed''') is a species of [[flowering plant]] in the genus ''[[rosinweed|Silphium]]''. It is native to east-central [[North America]].
It is a [[perennial plant|perennial]] [[herbaceous]] plant similar in appearance to a [[sunflower]], growing to 1-4 m tall, with bristly-hairy stems. The [[leaf|leaves]] are alternately arranged, and deeply pinnately lobed; the basal leaves up to 40&nbsp;cm long, becoming smaller higher up the stem. The [[flower]]s are produced in [[inflorescence|flowerheads]] (capitula) 5-12&nbsp;cm diameter, with a ring of ray florets surrounding the 2-3&nbsp;cm diameter center of disc [[Flower|floret]]s. Flowering is in late summer, typically from July to September.
Compass plants are so named because they tend to align their foliage '''East-West''' to present the minimum surface area to the hot noon sunshine. The taproot of the compass plant may grow to more than 9-14 ft. deep, making it hardy and resistant to drought.
{{Inc|
{{Inc|
<!--- ******************************************************* -->
Silphium laciniatum, Linn. Compass Plant. St. about 6 ft. high, leafy at the base, much less so above, very rough: lvs. 1 ft. long or more, once or twice pinnately parted, the lobes oblong or lanceolate: fl.-heads several, sessile or short-peduncled, 2-5 in. across; rays 20-30. July-Sept. Ohio, west and south.— It is said of this species that the st.-lvs. tend to point north and south.
Silphium laciniatum, Linn. Compass Plant. St. about 6 ft. high, leafy at the base, much less so above, very rough: lvs. 1 ft. long or more, once or twice pinnately parted, the lobes oblong or lanceolate: fl.-heads several, sessile or short-peduncled, 2-5 in. across; rays 20-30. July-Sept. Ohio, west and south. B.B. (ed. 2) 3:461.— It is said of this species that the st.-lvs. tend to point north and south.
{{SCH}}
{{SCH}}
}}
}}


==Cultivation==
==Cultivation==
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===Propagation===
===Propagation===
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===Pests and diseases===
===Pests and diseases===
{{edit-pests}}<!--- Type pest/disease info below this line, then delete this entire line -->


==Species==
 
<!--  This section should be renamed Cultivars if it appears on a page for a species (rather than genus), or perhaps Varieties if there is a mix of cultivars, species, hybrids, etc    -->
==Varieties==
 


==Gallery==
==Gallery==
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<gallery>
<gallery perrow=5>
Image:Upload.png| photo 1
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Image:Upload.png| photo 2
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==References==
==References==
*[[Standard Cyclopedia of Horticulture]], by L. H. Bailey, MacMillan Co., 1963
<references/>
<!--- xxxxx  *Flora: The Gardener's Bible, by Sean Hogan. Global Book Publishing, 2003. ISBN 0881925381  -->
<!--- xxxxx  *Flora: The Gardener's Bible, by Sean Hogan. Global Book Publishing, 2003. ISBN 0881925381  -->
<!--- xxxxx  *American Horticultural Society: A-Z Encyclopedia of Garden Plants, by Christopher Brickell, Judith D. Zuk. 1996. ISBN 0789419432  -->
<!--- xxxxx  *American Horticultural Society: A-Z Encyclopedia of Garden Plants, by Christopher Brickell, Judith D. Zuk. 1996. ISBN 0789419432  -->
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[[Category:Categorize]]
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Latest revision as of 15:20, 30 May 2010

 Silphium laciniatum subsp. var.  Compass plant
The query description has an empty condition.: herbaceous
Height: ⇕ to
Width: ⇔ to
5ft10ft 3ft4ft
Height: ⇕ 5 ft to 10 ft
Width: ⇔ 3 ft to 4 ft
The query description has an empty condition.: ⌛ perennial
Origin: ✈
Poisonous: ☠
Bloom: ❀ early summer, mid summer, late summer
The query description has an empty condition.: ☼ sun, part-sun
The query description has an empty condition.: ◍
Features: ✓ flowers, drought tolerant
Hidden fields, interally pass variables to right place
Minimum Temp: ☃ °F
USDA Zones: 4 to 9
Sunset Zones:
Flower features: ❀ orange, yellow
Asteraceae > Silphium laciniatum var. ,



Silphium laciniatum (Compass Flower, Compass Plant or Rosinweed) is a species of flowering plant in the genus Silphium. It is native to east-central North America.

It is a perennial herbaceous plant similar in appearance to a sunflower, growing to 1-4 m tall, with bristly-hairy stems. The leaves are alternately arranged, and deeply pinnately lobed; the basal leaves up to 40 cm long, becoming smaller higher up the stem. The flowers are produced in flowerheads (capitula) 5-12 cm diameter, with a ring of ray florets surrounding the 2-3 cm diameter center of disc florets. Flowering is in late summer, typically from July to September.

Compass plants are so named because they tend to align their foliage East-West to present the minimum surface area to the hot noon sunshine. The taproot of the compass plant may grow to more than 9-14 ft. deep, making it hardy and resistant to drought.


Standard Cyclopedia of Horticulture

Silphium laciniatum, Linn. Compass Plant. St. about 6 ft. high, leafy at the base, much less so above, very rough: lvs. 1 ft. long or more, once or twice pinnately parted, the lobes oblong or lanceolate: fl.-heads several, sessile or short-peduncled, 2-5 in. across; rays 20-30. July-Sept. Ohio, west and south.— It is said of this species that the st.-lvs. tend to point north and south. CH


The above text is from the Standard Cyclopedia of Horticulture. It may be out of date, but still contains valuable and interesting information which can be incorporated into the remainder of the article. Click on "Collapse" in the header to hide this text.


Cultivation

Propagation

Pests and diseases

Varieties

Gallery

  • photo 1
    photo 1
  • photo 2
    photo 2
  • photo 3
    photo 3

References


External links


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