Citrina group
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Flower colour: |
mostly yellow |
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Flowering habits: |
nocturnal |
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Branching: |
branched |
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Roots: |
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others: |
flowers are fragrant with long perianth tubes |
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Fulva group
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Flower colour: |
brownish-red (fulvous dye) |
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Flowering habits: |
diurnal |
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Branching: |
branched |
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Roots: |
spindle-shaped swellings |
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others: |
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Middendorffii group
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Flower colour: |
orange |
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Flowering habits: |
diurnal |
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Branching: |
not branched |
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Roots: |
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others: |
bracts are mainly short and broad, but overlap |
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Nana group
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Flower colour: |
reddish-orange |
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Flowering habits: |
diurnal |
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Branching: |
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Roots: |
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others: |
not winter-hardy, scapes max. 50cm long, perianth tube shorter than 1cm |
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Multiflora group
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Flower colour: |
orange, orange-yellow |
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Flowering habits: |
diurnal |
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Branching: |
many branches |
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Roots: |
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others: |
flowers on short stalks, smaller than 7cm, tubes less than 2cm long |
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Others (so far not associated to a group)
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Flower colour: |
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Flowering habits: |
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Branching: |
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Roots: |
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others: |
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