Monday, November 11, 2013

S is for SO MANY TO CHOOSE FROMll

Scaevola striata commonly know as the Veined Fan Flower is a native of Western Australia and found in the botanically rich southwest corner of the State.  It is a dwarf, spreading perennial herb that may sometimes sucker.  The leaves may be up to 6 cms long and 2 cms wide, oblong to ovate, deep green, with toothed margins and a pointed apex.  The flowers are 4 cms across, bluish-purple or pink with white or yellow throats.  Blooms are held in sprays that may reach 30 cms (1 ft) in length.  The flowers are always conspicuous and can be very abundant.  This plant flowers through spring and summer with sporadic flowering at other times.  It is a very popular garden plant.  (There are about 40 varieties of Scaevola in Western Australia).


There are 3 species of Sowerbaea found in Western Australia (out of a total of 5 species) and one of these species is Sowerbaea laxiflora Lindl.  It is a tufted perennial which grows down the west coast, and some inland areas, mainly from Geraldton south to Albany.  It is known as Purple Tassels and is a tufted perennial herb 0.15-0.45 m high.  It has purple flowers August to November.


Stylidium (also known as trigger plants) is a genus of dicotyledonous plants that belong to the family Stylidiaceae.  Pollination is achieved through the use of the sensitive 'trigger' which comprises the male and female reproductive organs fused into a floral column that snaps forward quickly in response to touch, harmlessly covering the insect in pollen.  Most of the approximately 300 species are found in Australia, making it the fifth largest genus in this country.  Trigger plants are considered to be protocarnivorous or carnivorous because of the glandular trichomes that cover the scape and the flower can trap, kill and digest small insects with protease enzymes produced by the plant.  If you wait a moment or two hopefully you will see the trigger working on this little yellow flower:


In Western Australia alone, there are now more than 150 species, at least 50 of which are in the area immediately around Perth.  One of the larger species is Stylidium schoenoides or "Cow Kick" so named for the powerful 'kick' when triggered.  The flowers of this species are only 5cm (2"). so most of the Stylidium flowers are very small.


I can remember, as a child. being really intrigued by these plants and loved to gently touch the flower to make the trigger work.  It is many years now since I have seen one.

Senna cardiosperma is an inland species and common in the Kalgoorlie region of Western Australia.  It also occurs around Esperance in the mallee, arcing 100km (over 60 miles) NW to the NE and becoming more common further north.  It germinates readily in a variety of well-drained soils after bushfire or soil disturbance and can grow to around 2 metres (6') high, although most plants are usually shorter and quite bushy.

The flowers tend to be distinctly yellow when growing in sandy loam but develop an orange tinge when growing over gravel.  It is a prolific producer of flowers and flowering times are usually between July and November.


You know of course why I chose the last one....yes, it's yellow!!


12 comments:

  1. Morning or probably night time for you I am trying to play catch up. I love your flowers it gives me a much better understanding of your beautiful country I like the yellow:). Hug B

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    1. I too am playing catch up lately as well. It happens to all of us occasionally and we feel badly about it and yet we shouldn't should we?
      We love our flowers as well and are very proud of the great diversity.
      Yellow is my colour. I have to include them when I find special ones. They brighten my day and hopefully yours as well. : )

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  2. Love the yellow ones...so cheerful...like a little patch of sunlight.

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    1. Yes that yellow one had to be in there....you can see why I love yellow so much can't you? When I see yellow I feel good and I really need that right now.

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  3. Superb.

    And I loved the trigger firing - thank you.

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  4. I was so pleased that the trigger worked OK. Wasn't sure it would. Special!!

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  5. This is such an interesting post with such lovely flowers.

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    1. Thanks Denise....I'm quite excited myself with some of our lovely flowers I knew little about.

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  6. I've never ever seen a trigger flower before, never even heard of them. Today I've learned something.

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    1. I loved them when I was a youngster. In those days there was lots of bush in Perth and we'd go and pick wildflowers quite freely. I didn't pick the trigger plants but enjoyed making the triggers work. They really delighted me.

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  7. PS; your book arrived in the mail today, you were right, the title is Proof.

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    1. Glad it arrived safely and thanks for confirming the title. My memory is not as bad as I thought it was. lol

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