{{Short description|Species of carnivorous plant}} {{Speciesbox | image = Drosera tokaiensis.jpg | genus = Drosera | display_parents = 2 | parent = Drosera sect. Drosera | species = tokaiensis | authority = (Komiya & Shibata) T.Nakamura & Ueda (1991) | synonyms = *''Drosera spatulata'' subsp. ''tokaiensis''<br /><small>Komiya & Shibata (1978)</small> *''Drosera spatulata'' var. ''rotundata''<br /><small>Makino ''ex'' Ueda (1989)</small> *''Drosera kansaiensis''<br /><small>Debbert (1996)</small> }}
'''''Drosera tokaiensis''''' is a species of sundew native to Japan. It is considered to be a natural hybrid of ''Drosera rotundifolia'' and ''Drosera spatulata''. Leaf morphology is similar to the parental species, so its unidentifiable by that alone. So other methods are necessary. One method is to look at differences in their Biseriate Glandular Trichomes (BGTs).<ref name="Cytologia"> {{Citation | last = Katogi | first = Takahiro | author-link = | title =A Comparative Study of Biseriate Glandular Trichomes of Allopolyploid Species Drosera tokaiensis and Its Parental Species | publisher =Cytologia | date = | year = 2022 | url = https://www.jstage.jst.go.jp/article/cytologia/87/4/87_D-22-00078/_html/-char/en | accessdate = 2025-12-14}} </ref> These two parent species have 20 and 40 chromosomes, respectively, so recent hybrids between them are sterile, having 30 chromosomes, while the stabilized, fertile ''D. tokaiensis'' has 60 (i.e. allohexaploid).<ref name="icps"> {{Citation | last = Brittnacher | first = John | author-link = | title =Growing the Drosera spatulata species complex | publisher = International Carnivorous Plant Society (ICPS) | date = | year = | url = http://www.carnivorousplants.org/howto/GrowingGuides/D_spatulata.php | accessdate = 2017-06-23}} </ref> The species was previously thought to be a subspecies or variety of ''Drosera spatulata''. It is often mistaken for ''D. spatulata'' in cultivation. thumb|Drosera tokaiensis in cultivation <gallery> File:Drosera tokaiensis (flower and bud).jpg|Flower File:Drosera tokaiensis (leaf s2).jpg|Leaf </gallery>
==References== {{Commons}} {{Reflist}}
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Category:Carnivorous plants of Asia tokaiensis Category:Flora of Japan Category:Plants described in 1978
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