Walking Irises: A case of mistaken identity - Neomarica and Trimezia

Walking Irises: A case of mistaken identity - Neomarica and Trimezia

 

Neomarica caerulea “Regina”

Ok we have had these plants for ages so in many ways it is an old friend. When I was a little boy we had them growing in the garden at Centipede Alley at Moto’otua. When we moved to Alafua they were dug up and transplanted there. I latter dug some up and transplanted them at Moto’otua and then to Vailele where they disappeared while I was away. I assumed they died out due to the place being on the coast but according to various sources they are drought and salt tolerant so maybe it was something else.  In any case it was not till around 2008 that I stumbled across a couple plants being sold under the Banyan trees on Beach Road in Apia and made arrangements to buy one after work.

Neomarica caerulea “Regina”

I planted that single plant at Malifa and as it grew and sent up offsets. I waited patiently until they were sufficiently big, then dug the whole clump up and divided it and replanted the individual plants. When I moved to Alafua I took some with me and planted them there again as the ones that had been left behind had disappeared.


Neomarica caerulea “Regina”

We always referred to this plant as a Blue Iris although later on I began to doubt the accuracy of this name. At Malifa there were some plants that looked like they were closely related to this since they resembled each other except for a number of differences.

Yellow Walking Iris flower

First of all the flowers were much smaller and yellow speckled with brown. Also they had many more flowers on long thin flower stalks. Indeed the whole presentation of the flowers was entirely different as you can see.

Blue and Yellow Walking irises (not to scale)

On top of that they had this bizarre tendency to grow little plantlets out of the flowers. These would grow and the weight of the growing plantlets would make the stalk bow down until it touched the ground and the plantlets took root. They also multiplied by sending up offshoots.

The Blue ones on the other hand at most had three flowers per stalk and sometimes these flowers developed seed pods although I have never successfully grew any seeds out of them ...  yet.

Neomarica caerulea "Regina"

The other difference compared to the Yellow flowered plant is that the Blue one had much larger and sturdier leaves and a slightly different centre rib structure. Other than these differences the flowers apart from size and colour were remarkably similar which to me indicated that they were related being at least of the same genus.

Leaf of Neomarica caerulea "Regina" showing centre rib

The close resemblance of the flowers and the tendency of the yellow one to grow plantlets led me to the Neomaricas otherwise known as “Apostle Plants” or “Walking Irises”.

The name “Walking Iris“ refers to the tendency of the plant to grow plantlets and “walk” across a lawn while the “Apostle Plant” reference alludes to the belief that they always have twelve flowers per stalk which I can confirm is NOT true.

Yellow Walking iris Flower and plantlets forming on flower stalk

The whole “Walking” thing is what still confused me because the Blue ones that I have and the Blue ones that I have seen on line do NOT “walk” at all. Interestingly one site (LINK) addresses this very issue noting that:

 “Although it is considered a walking iris, we have only seen it walk under extreme stress.”

 

That statement is extremely interesting and could perhaps point to a reason for the tendency for these plants to “walk” because when you think about it developing plantlets that will “walk” could be a way of the plant to try to ensure that it continues by growing in a location that is hopefully more favourable to the continuation of itself than if it just sent up another offset. The “walking” plantlet would end up taking root some distance away from the mother plant which in some cases might make a world of difference to its survival. But that is just my theory.

But getting back to identifying the Blue flowered plants, the closest that I have found that matches the Blue Irises I have is Neomarica caerulea “Regina”.

There are a number of other varieties which I assume are cultivars of Neomarica caerulea. However, Neomarica caerulea “Regina” is the one that I think is the one that we have had all these years.

The Yellow one I have tentatively identified as Neomarica longifolia which some identify as being synonymous with Trimezia martinicensis and given the common name of Yellow Walking iris. Trimezia is a genus which belongs to the same family as Neomarica – which is Iridaceae.

PHOTO of Blue Iris

As it is I picked up another variety from Tului Peters at Samoan Nursery up at Aleisa a few months ago. It is a smaller plant than even the yellow one and if I remember correctly it has white flowers. But has not yet flowered and seems to be growing very slowly. Actually the plant is rather small, being about 12 inches / 30cm in height. I am assuming that this is its full size because one of the two plants I obtained had a plantlet which you would only get from a plant that had flowered unless this is yet another variety that manages to “Walk” without having flowered first which I find  very unlikely since from what I have read, flowering is part of the process.

PHOTO of small Neomarica

Maybe it is a Neomarica northiana given how it is supposed to be white.  I guess we will have to wait and see what it flowers look like.

As for the identity of the Yellow Iris that are still uncertain. I did some research on the whole Neomarica longifolia versus Trimezia martinicensis issue and found some interesting information.

First of all due to the close resemblance between plants of Noemarica and Trimezia they are often confused and misplaced in the wrong genus or treated as synonymous.

However, according to information from the Kew Royal Botanical Gardens citing Chukr & Giulietti (2001), there are distinctive vegetative characteristics that distinguish the genrea which are more accurate than looking at the flowers alone.

These are summarised as follows:

With regards to the Underground system Trimezia ALWAYS has a corm while Neomarica has a rhizome in 90% of the species and a corm in only 10%.

For the leaf bases (cataphylls) Trimezia has it’s cataphylls arranged in a spiral while Neomarica has it’s cataphylls arranged in a plane with the base of one clasping the one above

Leaf base of neomarcia caerulea

For the leaves Trimezia has flattened or circular leaves while Neomarica has leaves that are sword-shaped folded lengthwise

For the flowering stems (scape) Trimezia has circular in cross section and never leaf like while Neomarica has a flattened and leaf like flowering stem.

Flowering stem of Yellow Walking iris



Flowering stem of Blue Walking iris

Taking this information into account I think that the yellow irises that I have are actually a Trimezia. I indicate the genus only because I discovered that there are two species of Trimazia that match the description of the ones I have; T. martinicensis and T.  steyermarkii

So now I need to figure out if it is Trimezia martinicensis or Trimezia steyermarkii.

... to be continued

Taxonomy

• Family: Iridaceae – Genus Neomarica – Species: Neomarica caerulea
• Family: Iridaceae – Genus Neomarica – Species: Neomarica longifolia
• Family: Iridaceae – Genus Neomarica – Species: Neomarica northiana
• Family: Iridaceae – Genus Trimezeia – Species: Trimezia martinicensis
• Family: Iridaceae – Genus Trimezeia – Species: Trimezia steyermarkii,

Medical use
No information found

Glossary: PLEASE NOTE I will be updating the post to include the glossary as soon as I have completed it

Cataphylls:
Corm:
Rhizome:
Scape:
Offsets:

References PLEASE NOTE I will be adding all the references and links to the on line source as soon as possible

Agristarts Entry on Iris Neomarica caerulea “Regina” LINK

Fairchild Tropical Botanical Garden Entry on Neomarica caerulea LINK

Kew Botanical Gardens LINK
Wikipedia Entry on: Iridaceae
Wikipedia Entry on: Neomarica
Wikipedia Entry on: Trimezia



Flora and Fauna - Plants and Critters Blog by Vincent Albert Vermeulen is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License.

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More flowers and random kitten cuteness

More flowers and random kitten cuteness

This is Pebble looking thoughful ... for once. Usually he leaps into action before thinking although he is usually able to figure out how to get out of trouble when things get ... complicated.

The Pink Orchid Tree  is flowering AGAIN. Oh and I have 4 seedlings that I found under it which I assume are from seeds that dropped and germinated. I need to try and harvest the seed pods and germinate some myself.

This  is Ghost cozening  up to Brown Dog. They are best of freinds and Ghost has a strange habit of sticking his face in her fur and then doing the whole kneading thing.

Bleeding Heart

Gloriosa superba ( Gloriosa lily, glory lily)

Rocky a.k.a Nirvana Kitty / The Benevolent One ... in this instance looking very guilty because I was telling him off after catching him climbing the new shelf on which I had moved all my Zepheranthes rosea (Pink Rain lilies).

Photographic evidence. Unfortunately it only proves he is able to climb up NOT that he is responsbile for the paw prints amongst the squashed seedlings. I have covered the seed trays with coco wire to hopefully avert any further damage.

 Dwarf Red Ixora

 Dwarf Red Ixora

Blue Iris (Neomarica?)

Flora and Fauna - Plants and Critters Blog by Vincent Albert Vermeulen is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License.

Based on a work at http://plantsandcritters.blogspot.be/.

Permissions beyond the scope of this license may be available at http://plantsandcritters.blogspot.be/.

Additional information:

Here is a list of my blogs:

·         Flora and Fauna - Plants and Critters (on plants, animals as well as gardening, conservation and environmental matters): http://plantsandcritters.blogspot.com/

·         The Blood of  Souls (language, translation and etymology) : http://thebloodofsouls.blogspot.com/

·         Whiskers on Kittens (Life with Kittens and Cats in general) : http://whiskersonkittens-vincent.blogspot.com/

Blue Irises and Egyptian Starclusters

Blue Irises and Egyptian Star clusters

The thing about photographing flowers is that some of them unfortunately are only open for a short period of time or open and close during specific hours as is the case with Four O’clock (Mirabilis jalapa). This can lead to some disappointments not to mention missed photo opportunities if you do not have a camera at hand or come back later only to find that later was too late.


I have planted Blue Irises (Neomarica caerulea) in several locations at Malifa and Alafua. The thing with these flowers is that very saddly they are one day wonders. I saw one of them had flowered a few days ago and thought to myself that I should take a photo but as I was busy I decided to leave it till later. Unfortunately when I came back all I saw was the closed up flower already withering on the plant.

Fortunately I noticed that one of the other clumps had two buds developing so I have been checking them regularly. Today I was lucky as I had completely forgotten but was making cutting of some hibiscus and Pua taunofo among other plants when I was in the area where they are and remembered to check (since they are actually a bit obscured by some other plants) and there they were. This time I only briefly considered leaving the photos till latter but quickly changed my mind and hurried off to wash my hands and get my camera.

 

UNKNOWN

 

Torch Ginger (Etlingera elatior)

 

Egyptian Starclusters (Pentas lanceolata)

 

Egyptian Starclusters (Pentas lanceolata)

 

Flora and Fauna - Plants and Critters Blog by Vincent Albert Vermeulen is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License.

Based on a work at http://plantsandcritters.blogspot.be/.

Permissions beyond the scope of this license may be available at http://plantsandcritters.blogspot.be/.

Additional information:

Here is a list of my blogs:

·         Flora and Fauna - Plants and Critters (on plants, animals as well as gardening, conservation and environmental matters): http://plantsandcritters.blogspot.com/

·         The Blood of  Souls (language, translation and etymology) : http://thebloodofsouls.blogspot.com/

·         Whiskers on Kittens (Life with Kittens and Cats in general) : http://whiskersonkittens-vincent.blogspot.com/