Английская Википедия:Grevillea thyrsoides
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Grevillea thyrsoides is a species of flowering plant in the family Proteaceae, and is endemic to the southwest of Western Australia. It is a small, spreading or low-lying shrub, with pinnatisect to comb-like leaves, the end lobes linear, and clusters of hairy pinkish-red flowers.
Description
Grevillea thyrsoides is a spreading or low-lying shrub that typically grows to Шаблон:Cvt high and Шаблон:Cvt wide, sometimes forming a mound. Its leaves are Шаблон:Cvt long and pinnatisect with 15 to 30 closely space, linear lobes often arranged comb-like on either side of the leaf rachis. The lobes are Шаблон:Cvt long, Шаблон:Cvt wide, and sometimes sharply pointed. The edges of the leaflets are rolled under, enclosing the lower surface apart from the mid-vein. The flowers are borne on one side of a trailing leafless peduncle Шаблон:Cvt long, the floral rachis Шаблон:Cvt long. The flowers are hairy, dusky pink to pale red with a bright pinkish-red style, the pistil Шаблон:Cvt long. Flowering mainly from August to November, and the fruit is a hairy follicle Шаблон:Cvt long.[1][2][3][4]
Taxonomy
Grevillea thyrsoides was first formerly described in 1855 by Swiss botanist Carl Meissner in the William Jackson Hooker's Journal of Botany and Kew Garden Miscellany based on plant material collected by James Drummond "between Dundagaran and Smith River".[5][6] The specific epithet (thyrsoides) means "thyrse-like".[7]
In 1993, Peter M. Olde and Neil R. Marriott described two subspecies in the journal Nuytsia and the names are accepted by the Australian Plant Census:
- Grevillea thyrsoides subsp. pustulata Olde & Marriott[8] has leaves mostly Шаблон:Cvt long, the lobes Шаблон:Cvt long, and the stalk of the ovary is Шаблон:Cvt long.[4][9]
- Grevillea thyrsoides Meisn. subsp. thyrsoides[10] has leaves mostly Шаблон:Cvt long, the lobes Шаблон:Cvt long, and the stalk of the ovary is Шаблон:Cvt long.[4][11]
Distribution and habitat
The grevillea grows in heath and Banksia mallee. Subspecies pustulata occurs in the area between Marchagee, Coorow and Watheroo in the Avon Wheatbelt and Geraldton Sandplains bioregions of south-western Western Australia and subsp. thyrsoides between Badgingarra and Dandaragan in the Geraldton Sandplains and Swan Coastal Plain bioregions.[12][13]
Conservation status
Both suspecies of G. thyrsoides are listed as "Priority Three" by the Government of Western Australia Department of Biodiversity, Conservation and Attractions,[12][13] meaning that they are poorly known and known from only a few locations but are not under imminent threat.[14]
See also
References
- Английская Википедия
- Grevillea
- Endemic flora of Western Australia
- Eudicots of Western Australia
- Proteales of Australia
- Taxa named by Carl Meissner
- Plants described in 1855
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