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Drosera planchoniiD. planchonii (D. macrantha ssp. planchonii) is one of the species in the macrantha complex consisting of D. eremaea, D. hirsuta, D. indumenta, D. macrantha and D. planchonii. It is a climbing species reaching 30 to 60 cm in length. The stem maintains the same diameter throughout its length (in contrast to D. macrantha). It can lean on other plants for support but it does not glue its leave as tightly as D. macrantha does.
Other typical features of this subspecies are the lower number of flowers (1-5) and the observation that they are self-pollinating. At least the plants I grow in culture are often red or maroon in colour but I can not say whether this is the generally the case.
The tubers are white and this subspecies usually does not produce additional tubers readily. However, it is easy to propagate from seeds.
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