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← 2014 Advent Botany – Day 17 – Raisins, Currants & Sultanas
2014 Advent Botany – Day 19 – Parsnip (Pastinaca sativa) →

2014 Advent Botany – Day 18 – Amaryllis (Hippeastrum spp.)

Posted on December 18, 2014 by Alastair Culham

By Dawn Bazely

<i>Hippeastrum x johnsonii</i> illustration by Priscilla Susan Bury

Hippeastrum x johnsonii illustration by Priscilla Susan Bury

Amaryllis (Hippeastrum spp.). Today’s entry owes thanks to Professor Dawn Bazely (York University, Toronto, Canada) who suggested the idea (Dawn was last seen on #AdventBotany Day 9 Dogwood).  This strikingly large and often very colourful flower is commonly sold as a Christmas gift.

Dawn writes:

“I was surprised to discover from a 2007 Daily Telegraph column, that Amaryllis is the most popular Christmas cut-flower in the UK. Who knew?”

Dr M adds: Certainly the RHS is up there with this, witness the front cover of the December issue of “The Garden” which contains a review of some of the popular cultivars.

The Garden, December 2014

The Garden, December 2014

Dawn continues: “In Canada, Amaryllis bulbs are popular potted plants at Christmas, and everyone who gets one can usually keep it alive for a year. When my re-blooming Amaryllis flowers flop over, I cut them off and add them to arrangements.”

 

“But what we commonly refer to as Amaryllis is actually a common name for Hippeastrum species in the family Amaryllidaceae, native to South America, particularly Brazil.  There are about 90 species and 600 hybrids of Hippeastrum.

“However, Hippeastrum is a quite distinct genus from the true Amaryllis, also in the same family, but native to South Africa.”

Dawn's floral arrangement featuring Amaryllis
Dawn’s floral arrangement featuring Amaryllis
A selection of Amaryllis cultivars grown by Dawn
A selection of Amaryllis cultivars grown by Dawn

“The two genera are not dissimilar to look at, but using the common name of Amaryllis for Hippeastrum bulbs, rather than Amaryllis bulbs, is very confusing!  But it is due to the equally confusing history of efforts to disentangle exactly how the different genera are related to each other!”

Dr M adds the taxonomic story in brief:  In 1753 Linnaeus created the name Amaryllis belladonna, the type species of the genus Amaryllis. At that time both South African and South American plants were placed in the same genus, only much more recently being separated into two different genera.

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The key taxonomic question is whether Linnaeus’s type species was a South African or a South American plant. The taxonomic debate culminated in a decision by the 14th International Botanical Congress in 1987 that Amaryllis should be a conserved name (i.e. correct regardless of priority) and ultimately based on a specimen of the South African Amaryllis belladonna from the George Clifford Herbarium at the British Museum (see Meerow et al. 1997). This decision settled the scientific name of the genus but the common name “amaryllis” continues to be used for Hippeastrum.

development of the Amaryllis inflorescence

development of the Amaryllis inflorescence

The RHS offers advice on how to grow your Hippeastrum and keep it from one year to the next.

Don’t forget DrMgoeswild for other views on #AdventBotany.

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About Alastair Culham

A professional botanist and biologist with an interest in promoting biological knowledge and awareness to all.
View all posts by Alastair Culham →
This entry was posted in Advent, Herbarium RNG, Public Engagement with Science and tagged #AdventBotany, Amaryllis, Hippeastrum. Bookmark the permalink.
← 2014 Advent Botany – Day 17 – Raisins, Currants & Sultanas
2014 Advent Botany – Day 19 – Parsnip (Pastinaca sativa) →
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Last reply was April 26, 2019
  1. #Advent Botany – the full story! | Dr M Goes Wild
    View December 19, 2014

    […] More on Hippeastrum from Culham Research Group here. […]

    Reply
  2. Getting Ready for #AdventBotany – here’s a reprise of 2014 | Culham Research Group
    View December 3, 2015

    […] 16 – Chocolate & Cocoa Day 17 – Raisins, Currants & Sultanas Day 18 – Hippeastrum x johnsonii illustration by Priscilla Susan Bury Day 19 […]

    Reply
  3. Advent Botany 2015 – Day 12: Anyone can grow paperwhites but their taxonomy is a different story | Culham Research Group
    View December 12, 2015

    […] with blooming amaryllis (Hippeastrum) and poinsettias, paperwhites are popular Christmas gifts in North America. Forcing, the process of […]

    Reply
  4. The Son of #AdventBotany 2015! | Dr M Goes Wild
    View December 12, 2015

    […] with blooming Amaryllis (Hippeastrum) and Poinsettias (both of which featured in #AdventBotany 2014), Paperwhites are popular […]

    Reply
  5. #AdventBotany Day 2: Cultivated Cranberries beyond the Festive Season | Culham Research Group
    View December 2, 2017

    […] I would definitely bet that when Alastair and Jonathan launched Advent Botany in 2014, they never imagined that the annual series would still be going four years later! I thought their idea was fun and original, and I contributed to posts on popular North American festive plants: red-osier dogwood, poinsettia and amaryllis. […]

    Reply
  6. Guest blogging about Advent Botany at the University of Reading | Bazely Biology lab: collaborative, interdisciplinary, fun
    View December 4, 2017

    […] are the links to my posts: In 2014, I wrote about poinsettias, red-osier dogwood, and amaryllis, and I contributed recipes to posts about dates and […]

    Reply
  7. #AdventBotany 2018, Day 18: Advent VLOG | Culham Research Group
    View December 19, 2018

    […] of our long-standing contributors and has contributed: poinsettias, cranberries, red-osier dogwood, amaryllis, white cedar, balsam fir, paperwhites, ivy, candy cane chrysanthemums, and less traditional plant […]

    Reply
  8. A VLOG to celebrate the 5th birthday of the #AdventBotany blog series | Bazely Biology lab: collaborative, interdisciplinary, fun
    View April 26, 2019

    […] Advent Botany, I have blogged about poinsettias, cranberries, red-osier dogwood, amaryllis, white cedar, balsam fir, paperwhites, ivy, candy cane chrysanthemums, and less traditional plant […]

    Reply
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