Difference between revisions of "Grindelia"

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|genus=Grindelia
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|common_name=Gum plant, Rosin weed, Tar weed
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|image_caption=Curlycup gumweed ''([[Grindelia squarrosa]])''
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'''''Grindelia''''' is a genus of plants native to the [[Americas]] belonging to the family [[Asteraceae]], ([[Compositae]]). ''[[Grindelia squarrosa|G. squarrosa]]'', a plant with bright yellow flowers indigenous to much of the [[United States]], is commonly called curlycup gumweed.  ''[[Grindelia robusta|G. robusta]]'', found in the western states, is a coastal scrub bush that is reputed to have several medicinal uses.  Hairy gumweed, ''[[Grindelia cuneifolia]]'', occurs in brackish coastal marshes of western [[North America]], such as in some portions of the [[San Francisco Bay]] perimeter.
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Grindelia (Hieronymus Grindel, of Riga and Dorpat; died 1836). Composite. Hardy plants sometimes cultivated for their showy yellow flowers, which are 1 ½ to 2 inches across and borne freely all summer.  
 
Grindelia (Hieronymus Grindel, of Riga and Dorpat; died 1836). Composite. Hardy plants sometimes cultivated for their showy yellow flowers, which are 1 ½ to 2 inches across and borne freely all summer.  
  
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==Cultivation==
 
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===Propagation===
 
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==Species==
 
==Species==
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Selected species:
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*''[[Grindelia buphthalmoides]]''
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*''[[Grindelia camporum]]''
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*''[[Grindelia chiloensis]]''
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*''[[Grindelia ciliata]]'' - goldenweed
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*''[[Grindelia fraxino-pratensis]]'' - Ash Meadows gumplant
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*''[[Grindelia hirsutula]]''
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*''[[Grindelia integrifolia]]'' - Puget Sound gumweed
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*''[[Grindelia nana]]'' - Idaho gumplant
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*''[[Grindelia squarrosa]]''
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*''[[Grindelia stricta]]'' - Oregon gumweed
  
 
==Gallery==
 
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==References==
 
==References==
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*[[Standard Cyclopedia of Horticulture]], by L. H. Bailey, MacMillan Co., 1963
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<!--- 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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Latest revision as of 20:05, 9 August 2010


Curlycup gumweed (Grindelia squarrosa)


Plant Characteristics
Cultivation
Scientific Names

Asteraceae >

Grindelia >


If this plant info box on watering; zones; height; etc. is mostly empty you can click on the edit tab and fill in the blanks!


Grindelia is a genus of plants native to the Americas belonging to the family Asteraceae, (Compositae). G. squarrosa, a plant with bright yellow flowers indigenous to much of the United States, is commonly called curlycup gumweed. G. robusta, found in the western states, is a coastal scrub bush that is reputed to have several medicinal uses. Hairy gumweed, Grindelia cuneifolia, occurs in brackish coastal marshes of western North America, such as in some portions of the San Francisco Bay perimeter.


Read about Grindelia in the Standard Cyclopedia of Horticulture 

Grindelia (Hieronymus Grindel, of Riga and Dorpat; died 1836). Composite. Hardy plants sometimes cultivated for their showy yellow flowers, which are 1 ½ to 2 inches across and borne freely all summer.

Herbs, sometimes shrubby, of coarse habit, mostly natives of the U. S. west of the Mississippi: lvs. sessile or partly clasping and usually serrate and rigid: heads terminating the branches, solitary or in cymes or panicles; involucre bell-shaped or hemispheric, the bracts many-ranked. The plants often have a sticky balsam, especially the heads before and during flowering, whence they are called "gum-plants" in Calif., particularly G. robusta, which is the common one. The two species first described below have roots that are perennial and short-lived, but sometimes annual. These plants are also glabrous, and have firm or rigid lvs. This genus contains 2 plants from which a fluid- extract is obtained that is used externally as an antidote for poisoning by "poison ivy."—Species about 25.

Grindelias are of the easiest culture. They are propagated by division, cuttings or seed. G. squarrosa is hardy in the East: G. robusta is sold in California. They are best for wild places and trying situations. G. squarrosa grows freely in all soils but it does best in a light, open, moderately rich soil. In California it is common on dry hills. According to John S. Wright, both species grow in salt marshes and on alkaline soil, being indiscriminately gathered for medicinal purposes. The extract is also tonic and sedative, and is used in asthma. The rays are numerous, sometimes thirty, about ½ -inch long. 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

Species

Selected species:

Gallery

  • photo 1

  • photo 2

  • photo 3

References


External links


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