Scottish Rock Garden Club Forum

Bulbs => Crocus => Topic started by: Robert Pavlis on October 24, 2014, 01:09:29 PM

Title: fall blooming crocus vs colchicum
Post by: Robert Pavlis on October 24, 2014, 01:09:29 PM

What are the distinguishing differences between these two groups?

Do fall blooming crocus always make their leaves in fall, or do some make them in spring?

Title: Re: fall blooming crocus vs colchicum
Post by: johnralphcarpenter on October 29, 2014, 11:02:02 AM

None of the experts have answered here! However, Crocus and Colchicum belong to different families; Crocus is in the Iris family, the Iridaceae, and Colchicum is in the Colchicaceae, its own family.

Taxonomic Hierarchy: Colchicum.
       
  Kingdom Plantae  – plantes, Planta, Vegetal, plants   
     Subkingdom Viridaeplantae  – green plants   
        Infrakingdom Streptophyta  – land plants   
           Division Tracheophyta  – vascular plants, tracheophytes   
              Subdivision Spermatophytina  – spermatophytes, seed plants, phanérogames   
                 Infradivision Angiospermae  – flowering plants, angiosperms, plantas com flor, angiosperma, plantes à fleurs, angiospermes, plantes à fruits   
                    Class Magnoliopsida     
                       Superorder Lilianae  – monocots, monocotyledons, monocotylédones   
                          Order Liliales     
                             Family Colchicaceae     
                                Genus Colchicum L. – colchicum

Taxonomic Hierarchy; Crocus.
       
  Kingdom Plantae  – plantes, Planta, Vegetal, plants   
     Subkingdom Viridaeplantae  – green plants   
        Infrakingdom Streptophyta  – land plants   
           Division Tracheophyta  – vascular plants, tracheophytes   
              Subdivision Spermatophytina  – spermatophytes, seed plants, phanérogames   
                 Infradivision Angiospermae  – flowering plants, angiosperms, plantas com flor, angiosperma, plantes à fleurs, angiospermes, plantes à fruits   
                    Class Magnoliopsida     
                       Superorder Lilianae  – monocots, monocotyledons, monocotylédones   
                          Order Asparagales     
                             Family Iridaceae     
                                Genus Crocus L. – crocus

Lots of information on the WWW!

Title: Re: fall blooming crocus vs colchicum
Post by: Darren on October 29, 2014, 12:27:21 PM

If you want to tell them apart easily - Colchicum have 6 stamens and Crocus have 3.

Title: Re: fall blooming crocus vs colchicum
Post by: Robert Pavlis on October 30, 2014, 02:13:32 AM

thanks Darren--that is what I was looking for.

Title: Re: fall blooming crocus vs colchicum
Post by: Robert Pavlis on October 30, 2014, 02:15:17 AM

anyone know the answer to the second part?  Do fall blooming crocus always make their leaves in fall, or do some make them in spring?
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Title: Re: fall blooming crocus vs colchicum
Post by: Martinr on October 30, 2014, 05:43:45 AM

Hi, some of them do not make leaf growth till Spring, or at least well after flowering.