{{Short description|Species of carnivorous plant}} {{Use dmy dates|date=July 2019}} {{Speciesbox | image = DroseraMacranthaInflorescence.jpg | image_caption = ''D. macrantha'' subsp. ''macrantha'' | genus = Drosera | display_parents = 2 | parent = Drosera sect. Ergaleium | species = macrantha | authority = Endl. | subdivision_ranks = Subspecies | subdivision = *''D. macrantha'' subsp. ''eremaea'' <small>N.G.Marchant & Lowrie</small> *''D. macrantha'' subsp. ''macrantha'' | synonyms = *''D. debilis'' <small>F.Muell. ex Diels</small> *''D. macrantha'' subsp. ''planchonii'' <small>(Hook.f. ex Planch.) N.Marchant</small> *''D. macrantha'' var. ''burgesii'' <small>Diels</small> *''D. menziesii'' var. ''albiflora'' <small>Benth.</small> *''D. plancherii'' <small>Dutailly</small> *''D. planchonii'' <small>Hook.f. ex Planch.</small> }}
'''''Drosera macrantha''''', the '''bridal rainbow''',<ref name="FloraBase">{{FloraBase|id=3106|name=''Drosera macrantha''}}</ref> is a scrambling or climbing perennial tuberous species in the carnivorous plant genus ''Drosera'' that is endemic to Western Australia. It grows in a variety of habitats, including winter-wet depressions in sandy, loamy, laterite, or quartzite soils. ''D. macrantha'' produces small, cup-shaped carnivorous leaves along a long stem that can be {{convert|0.16|-|1.5|m|ft|1|abbr=on}} high as it climbs. Its {{convert|1|in|cm|1|abbr=on}} white or pink flowers emerge from June to November, blooming earlier in the more northern range.<ref name="FloraBase" /><ref name="D'Amato">D'Amato, Peter. 1998. ''The Savage Garden: Cultivating Carnivorous Plants''. Ten Speed Press: Berkeley, California. pp. 158.</ref><ref name="Erickson">Erickson, Rica. 1968. ''Plants of Prey in Australia''. Lamb Paterson Pty. Ltd.: Osborne Park, Western Australia. pp. 35-36.</ref>
''D. macrantha'' was first described and named by Stephan Endlicher in 1837. It has a large, variable range,<ref name="FloraBase" /> which has led to considerable synonymy. Several subspecies have been published, but most have been moved to or lumped in with the taxon ''D. stricticaulis''.<ref name="Rice">Rice, Barry. 2009. [http://www.sarracenia.com/faq/faq5263.html The tuberous erect & scrambling ''Drosera'']. The Carnivorous Plant FAQ. Accessed online: 25 August 2009.</ref> ''Drosera stricticaulis'' itself was even first described by Ludwig Diels in 1906 as a variety of this species and was later elevated to species rank. One of the more recent subspecific taxa to be described was ''D. macrantha'' subsp. ''eremaea'' in 1992 by N. G. Marchant and Allen Lowrie (the subspecies ''D. macrantha'' subsp. ''macrantha'' is an autonym). In 1996, Jan Schlauer provided a comprehensive revision and new field key to the genus and also moved subspecies ''eremaea'' to a subspecies of ''D. stricticaulis'', though he did not give a specific rationale for this move.<ref name="Schlauer">Schlauer, J. 1996. [http://carnivorousplants.org/cpn/articles/CPNv25n3p67_88.pdf A dichotomous key to the genus ''Drosera'' L. (Droseraceae)]. ''Carnivorous Plant Newsletter'', 25(3): 67-88.</ref> Other authorities, such as Western Australia's Department of Environment and Conservation's FloraBase still recognize subspecies ''eremaea'' under ''D. macrantha''.<ref name="FloraBase2">{{FloraBase|id=13223|name=''Drosera macrantha'' subsp. ''eremaea''}}</ref>
==See also== *List of ''Drosera'' species
==References== {{Reflist}}
==External links== {{Commons-inline}}
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Category:Carnivorous plants of Australia Category:Caryophyllales of Australia Category:Eudicots of Western Australia Category:Plants described in 1837 macrantha
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