请输入您要查询的百科知识：

　

词条 Bedfordia
释义

  1. Description

  2. Taxonomy

  3. References

{{taxobox
|image = Bedfordia arborescens.jpg
|image_caption = Bedfordia arborescens
|regnum = Plantae
|unranked_divisio = Angiosperms
|unranked_classis = Eudicots
|unranked_ordo = Asterids
|ordo = Asterales
|familia = Asteraceae
|tribus = Senecioneae
|genus = Bedfordia
|genus_authority = DC.[1]
|subdivision_ranks = Species
|subdivision = see text
|}}

Bedfordia is a genus of flowering plants belonging to the family Asteraceae. The genus includes 3 species, all endemic to Australia.

Description

Bedfordia are shrubs or small trees.

Stems and leaves
The young branches and lower surface of leaves and the whorl that surrounds the flower heads are densely covered with short matted and stellate hairs.[2]

Leaves grow first on one side and then on the other in two ranks along the branches; not paired. Leaf edges are entire or with irregular rounded scallops, and have leaf stalks.[2]

Flowers
Heads in dense axillary branched cluster which is shorter than the leaves. Flower heads have a flat circular shape; and are surrounded by a hairy bract which is at base. Tubular, bisexual florets, scarcely longer than the bract.[2]
Fruits and reproduction
Cylindrical, grooved and not hairy achenes. Pappus bristles are finely toothed and twice as long as achenes.[2] B. salicina intergrades with B. arborescens (a tree) and B. linearis (a shrub).

Taxonomy

The genus was first formally described by Swiss botanist Augustin Pyramus de Candolle in the second volume of Archives de Botanique in 1833.[6] The genus name honours John Russell, 6th Duke of Bedford.[3]

Species[
//#4'>4]
  • Bedfordia arborescens (tree blanket leaf) - eastern Australia
    • Senecio bedfordii F.Muell
  • Bedfordia linearis (slender blanket leaf) - Tasmania
    • Cacalia linearis Labill.
    • Culcitium lineare (Labill.) Spreng.
    • Senecio billardierei F.Muell.
  • Bedfordia salicina DC. (blanket leaf) - Tasmania
    • Cacalia salicina Labill.
    • Culcitium salicinum (Labill.) Spreng.

References

{{commons category|position=left|Bedfordia}}
1. ^{{cite web | url = http://www.ars-grin.gov/cgi-bin/npgs/html/genus.pl?1354 | title = Genus: Bedfordia DC. | accessdate = 2008-04-15 | author = Germplasm Resources Information Network (GRIN) | authorlink = Germplasm Resources Information Network | date = 1996-09-17 | work = Taxonomy for Plants | publisher = USDA, ARS, National Genetic Resources Program, National Germplasm Resources Laboratory, Beltsville, Maryland }}
2. ^1 2 3 {{cite web | url = http://plantnet.rbgsyd.nsw.gov.au/cgi-bin/NSWfl.pl?page=nswfl&lvl=gn&name=Bedfordia | title = Genus Bedfordia | accessdate = 2008-04-15 | author = G. J. Harden | authorlink =Royal Botanic Gardens, Sydney | publisher = PlantNET - The Plant Information Network System of Botanic Gardens Trust}}
3. ^{{cite book|author1=Corrick, M.G. |author2=Fuhrer, B.A. |lastauthoramp=yes | title=Wildflowers of Victoria and adjoining areas| publisher=Bloomings Books|location= Australia | year=2001 | isbn=1876473142}}
4. ^1 {{cite web | url = http://www.cpbr.gov.au/cgi-bin/apni?taxon_id=60027 | title = Bedfordia DC | accessdate = 2008-04-15 | author = Australian Plant Name Index (APNI) | authorlink = Australian Plant Name Index | work = Integrated Botanical Information System (IBIS) | publisher = Australian Plant Name Index (APNI)}}
{{Taxonbar|from=Q4879236}}

4 : Senecioneae|Endemic flora of Australia|Asteraceae genera|Taxa named by Augustin Pyramus de Candolle
随便看

　

开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。

　

Copyright © 2023 OENC.NET All Rights Reserved
京ICP备2021023879号 更新时间：2024/11/12 6:58:47