Editing Drosera (section)

=== Growth form<!--as in growth form, NOT Habitat, as in location--> ===
The genus can be divided into several [[habit (biology)|habits]], or growth forms:
* Temperate sundews: These species form a tight cluster of unfurled leaves called a [[hibernaculum (botany)|hibernaculum]] in a winter dormancy period (= [[Hemicryptophyte]]). All of the North American and European species belong to this group. ''Drosera arcturi'' from Australia (including Tasmania) and New Zealand is another temperate species that dies back to a horn-shaped hibernaculum.
* Subtropical sundews: These species maintain vegetative growth year-round under uniform or nearly uniform climatic conditions.
* Pygmy sundews: A group of roughly 40 Australian species, they are distinguished by miniature growth, the formation of [[Gemma (botany)|gemmae]] for [[asexual reproduction]], and dense formation of hairs in the crown center. These hairs serve to protect the plants from Australia's intense summer sun. Pygmy sundews form the subgenus ''[[Drosera subg. Bryastrum|Bryastrum]]''.
* Tuberous sundews: These nearly 50 Australian species form an underground [[tuber]] to survive the extremely dry summers of their habitat, re-emerging in the autumn. These so-called tuberous sundews can be further divided into two groups, those that form rosettes and those that form climbing or scrambling stems. Tuberous sundews comprise the subgenus ''[[Drosera subg. Ergaleium|Ergaleium]]''.
[[File:Drosera derbyensis ne1.JPG|thumb|''[[Drosera derbyensis|D. derbyensis]]'', from the petiolaris complex]]
* ''Petiolaris'' complex: A group of tropical Australian species, they live in constantly warm but sometimes wet conditions. Several of the 14 species that comprise this group have developed special strategies to cope with the alternately drier conditions. Many species, for example, have [[Petiole (botany)|petioles]] densely covered in [[trichome]]s, which maintain a sufficiently humid environment and serve as an increased [[condensation]] surface for morning dew. The ''Petiolaris'' complex comprises the subgenus ''[[Drosera subg. Lasiocephala|Lasiocephala]]''.

Although they do not form a single strictly defined growth form, a number of species are often put together in a further group:
* Queensland sundews: A small group of three species (''[[Drosera adelae|D.&nbsp;adelae]]'', ''[[Drosera schizandra|D.&nbsp;schizandra]]'' and ''[[Drosera prolifera|D.&nbsp;prolifera]]''), all are native to highly humid habitats in the dim understories of the Australian rainforest.