Difference between revisions of "Swainsona"

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|genus=Swainsona
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'''''Swainsona''''' is a large genus of [[flowering plant]]s native to [[Australasia]]. There are 85 species, all but one of which is endemic to [[Australia]]; the exception, ''[[Swainsona novae-zelandiae|S. novae-zelandiae]]'', occurs only in [[New Zealand]].
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A member of the family [[Fabaceae]] ([[legume]]s, it is most closely related to the New Zealand genera ''[[Montigena]]'' (scree pea), ''[[Clianthus]]'' (kakabeak), and ''Carmichaelia'' ([[New Zealand broom]]).<ref name=wagstaff>{{cite journal |last=Wagstaff |first=Steven J. |authorlink= |coauthors=Peter B. Heenan and Michael J. Sanderson |year=1999 |month= |title=Classification, origins, and patterns of diversification in New Zealand ''Carmichaelia'' (Fabaceae) |journal=American Journal of Botany |volume=86 |issue=9 |pages=1346–1356|url=http://www.amjbot.org/cgi/reprint/86/9/1346 |accessdate=2008-07-26 |quote= |doi=10.2307/2656781 |jstor=2656781 |publisher=American Journal of Botany, Vol. 86, No. 9 }}</ref>
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''Swainsona'' is named after English botanist [[Isaac Swainson]].
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A few species are known to produce [[swainsonine]], a [[phytotoxin]] harmful to [[livestock]] (see [[Locoweed]]).  In Australia, animals [[Substance intoxication|intoxicated]] with swainsonine are said to be [[pea struck]].
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Swainsona (named for Isaac Swainson, an English horticulturist of the latter part of the eighteenth century). Often incorrectly spelled Swainsonia. Leguminosae. Glabrous or subappressed-pilose herbs or subshrubs, adapted to greenhouse culture or out-of-doors in the extreme South.
 
Swainsona (named for Isaac Swainson, an English horticulturist of the latter part of the eighteenth century). Often incorrectly spelled Swainsonia. Leguminosae. Glabrous or subappressed-pilose herbs or subshrubs, adapted to greenhouse culture or out-of-doors in the extreme South.
  
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==Cultivation==
 
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===Propagation===
 
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===Pests and diseases===
 
===Pests and diseases===
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==Species==
 
==Species==
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;Selected species
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*''[[Swainsona acuticarinata]]'' (A.T.Lee) Joy Thomps.
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*''[[Swainsona adenophylla]]'' J.M.Black
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*''[[Swainsona affinis]]'' (A.T.Lee) Joy Thomps.
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*''[[Swainsona beasleyana]]'' F.Muell.
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*''[[Swainsona behriana]]'' F.Muell. ex J.M.Black
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*''[[Swainsona brachycarpa]]'' Benth.
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*''[[Swainsona bracteata]]'' (Maiden & Betche) Joy Thomps.
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*''[[Swainsona burkei]]'' F.Muell. ex Benth.
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*''[[Swainsona burkittii]]'' F.Muell. ex Benth.
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*''[[Swainsona cadellii]]'' F.Muell. ex C.Moore & Betche
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*''[[Swainsona calcicola]]'' Joy Thomps.
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*''[[Swainsona campestris]]'' J.M.Black
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*''[[Swainsona campylantha]]'' F.Muell.
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*''[[Swainsona canescens]]'' (Benth.) F.Muell.
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*''[[Swainsona colutoides]]'' F.Muell.
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*''[[Swainsona complanata]]'' Joy Thomps.
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*''[[Swainsona concinna]]'' F.M.Bailey
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*''[[Swainsona cornuta]]'' Joy Thomps.
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*''[[Swainsona coronillifolia]]'' Salisb.
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*''[[Swainsona cyclocarpa]]'' F.Muell.
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*''[[Swainsona decurrens]]'' A.T.Lee
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*''[[Swainsona dictyocarpa]]'' J.M.Black
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*''[[Swainsona disjuncta]]'' Joy Thomps.
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*''[[Swainsona ecallosa]]'' Sprague
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*''[[Swainsona elegans]]'' A.T.Lee
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*''[[Swainsona elegantoides]]'' (A.T.Lee) Joy Thomps.
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*''[[Swainsona eremaea]]'' Joy Thomps.
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*''[[Swainsona extrajacens]]'' Joy Thomps.
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*''[[Swainsona fissimontana]]'' J.M.Black
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*''[[Swainsona flavicarinata]]'' J.M.Black
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*''[[Swainsona formosa]]'' (G. Don) Joy Thomps. - Sturt pea
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*''[[Swainsona forrestii]]'' F.Muell. ex A.T.Lee
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*''[[Swainsona fragilis]]'' F.M.Bailey
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*''[[Swainsona fraseri]]'' Benth.
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*''[[Swainsona fuscoviridis]]'' Joy Thomps.
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*''[[Swainsona galegifolia]]'' (Andrews) R.Br.
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*''[[Swainsona gracilis]]'' Benth.
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*''[[Swainsona greyana]]'' Lindl.
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*''[[Swainsona halophila]]'' Joy Thomps.
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*''[[Swainsona incei]]'' W.R.Price
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*''[[Swainsona kingii]]'' F.Muell.
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*''[[Swainsona sejuncta]]''
  
 
==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  *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 18:26, 22 June 2010


Sturts desert pea.jpg


Plant Characteristics
Habit   shrub

Lifespan: ⌛ perennial
Cultivation
Scientific Names

Fabaceae >

Swainsona >


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!


Swainsona is a large genus of flowering plants native to Australasia. There are 85 species, all but one of which is endemic to Australia; the exception, S. novae-zelandiae, occurs only in New Zealand.

A member of the family Fabaceae (legumes, it is most closely related to the New Zealand genera Montigena (scree pea), Clianthus (kakabeak), and Carmichaelia (New Zealand broom).[1]

Swainsona is named after English botanist Isaac Swainson.

A few species are known to produce swainsonine, a phytotoxin harmful to livestock (see Locoweed). In Australia, animals intoxicated with swainsonine are said to be pea struck.


Read about Swainsona in the Standard Cyclopedia of Horticulture 

Swainsona (named for Isaac Swainson, an English horticulturist of the latter part of the eighteenth century). Often incorrectly spelled Swainsonia. Leguminosae. Glabrous or subappressed-pilose herbs or subshrubs, adapted to greenhouse culture or out-of-doors in the extreme South.

Leaves odd-pinnate; lfts. many without stipels; stipules frequently herbaceous, base broad, rarely bristle-like: fls. blue-violet, purple, red, rarely white or yellowish, in axillary, usually peduncled racemes; calyx-teeth subequal or the 2 upper shorter; standard orbicular or reniform, spreading or reflexed; wings oblong, falcate or somewhat twisted; keel broad, incurved, obtuse; stamens 9 and 1; ovary sessile or stipitate, many-ovuled: legume ovoid or oblong, turgid or inflated, coriaceous or membranaceous.—About 30 species, Austral. Differs from Colutea chiefly in smaller stature and the large lateral stigma. By far the most popular kind is S. galegifolia var. albiflora.

S. alba, Hort., is mentioned in the horticultural journals as a form with snow-white fls.; possibly only a variation of S. galegifolia. G.W. 3. pp. 353, 354; 11, p. 13. Var. grandiflora, Hort., is offered in the trade.—S. atrococcinea, Carr. Similar to S. Ferrandii but with larger lvs.: infl. large; peduncle slightly purplish: fls. purplish red, standard broad-spread, 2-lobed, slightly convex, with a white spot at base, keel brilliant red-violet. A horticultural form.—S. Ferrandii, Hort. Perennial, 12-20 in. high, much branched: lvs. compound, unevenly so; lfts. numerous, elliptic, apex rounded, glabrous: fls. in axillary racemes; peduncle short and arched; standard broadly expanded; wings much reduced; keel small. Probably of garden origin. Var. alba, Hort., has pure white fls. Var. carminea, Hort., has carmine-pink fls.—S. grandiflora var. alba, Hort., is offered in the trade, very probably is a form of S. galegifolia.—S. rosea var. grandiflora, Hort., is offered in the trade.—S. splendens, Hort., appears in the trade. 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

  1. ↑ Wagstaff, Steven J.; Peter B. Heenan and Michael J. Sanderson (1999). "Classification, origins, and patterns of diversification in New Zealand Carmichaelia (Fabaceae)". American Journal of Botany (American Journal of Botany, Vol. 86, No. 9) 86 (9): 1346–1356. doi:10.2307/2656781. http://www.amjbot.org/cgi/reprint/86/9/1346. Retrieved 2008-07-26. 

External links


Retrieved from "http://gardenology.mywikis.net/w/index.php?title=Swainsona&oldid=129791"