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Thread: Drosera filiformis help!!

  1. #9

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    How many types of D. filiformis are there?

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    Rocketcaver's Avatar
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    I think there are 4 or 5 registered cultivars, hopefully someone will correct me on this.
    Here is a good link to filiformis info:

    http://www.carnivorousplants.org/how...filiformis.php

  3. #11
    hcarlton's Avatar
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    Well, lets count:
    D. filiformis filiformis
    D. filiformis tracyi
    D. filiformis "Florida All Red"
    D. filiformis "Florida Giant"
    D. filiformis 'California Sunset'
    D. filiformis 'Dreamsicle'
    D. filiformis 'Ambrosia'
    Plus any location specific varieties and anthocyanin-free plants floating out there, so plenty of different kinds, but three actually registered cultivars.
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    Thank you for the correction.

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    That of course assumes you don't consider Drosera filiformis and Drosera tracyi as separate species. I would write the list:

    D. filiformis
    D. tracyi
    D. filiformis "Florida All Red" or D. filiformis "Florida" ("Florida All Red" was used to distinguish it from 'Florida Giant')
    D. filiformis 'Florida Giant' or D. 'Florida Giant' (I suspect this is really a hybrid)
    D. 'California Sunset'
    D. 'Dreamsicle'
    D. 'Ambrosia'

    Having grown the first 5 plants there is no question in my mind that Drosera filiformis and Drosera tracyi are separate species. That they make natural hybrids in my view is of no consequence. In fact most of the North American Drosera species can and do make hybrids. The only real question is whether in a taxonomists judgement there are enough taxonomic characters to distinguish the plants. For more information please see:

    Rice, Barry A. (2011) The thread-leaf sundews Drosera filiformis and Drosera tracyi. Carniv. Pl. Newslett. 40(1):4-16

  6. #14
    hcarlton's Avatar
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    THe biggest thing holding some of us back is that these two plants are the only ones in North America which are able to hybridize and the hybrids are fertile themselves without special chemicals being used. I will admit there seems to be some large differences between the two (never grown both before, so I can't make caertain judgements), but there are also big similarities. It might be interesting to try hybridizing them with D. graminifolia to see if there's any similarity there too.
    Everything has a reason, whether big or small. Never underestimate the power of what is or is not.
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    Thanks for the info and the link.

    I had not seen D. graminifolia before which from pictures looks similar. Will have to try to find some seeds for this also

  8. #16
    hcarlton's Avatar
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    Let me know if you do, that's a plant I've been looking for for a while now.
    Everything has a reason, whether big or small. Never underestimate the power of what is or is not.
    There is far more to everything than meets the eye.
    Growlist

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