[bcbirdclub] Winter Flowers Dazzle the Eye in SW Florida

  • From: wdunson@xxxxxxxxxxx
  • To: wad4@xxxxxxx
  • Date: Sat, 14 Feb 2015 22:00:25 +0000 (UTC)

You do not normally expect to see native flowers blooming in winter, but this 
can happen in Florida after fires release nutrients and expose the soil to 
light. Although winter is not the natural time for most fires, which would have 
normally occurred after summer lightning, a prescribed burn about two months 
ago in Myakka State Forest led to an explosion of flower production. Members of 
the mangrove chapter of the Florida Native Plant Society ( 
http://mangrove.fnpschapters.org/ ) walked the Gordon Smith Trail on Feb. 12 
and enjoyed seeing a remarkable profusion of winter blooms. The habitat there 
is a combination of mesic and hydric pine flatwoods with occasional shallow, 
gently sloping natural wetlands. 

Since the soils in this area are predominantly sterile, acidic quart sands 
eroded from the Alabama and Georgia mountains, fires mobilize scarce nutrients 
that were held in the existing plants and litter, stimulating other plants to 
grow and bloom. It reminds me of the famous early spring flush of wildflowers 
in northern woodlands which seem timed to catch sunlight before the tree leaves 
have fully emerged. The scarcity of nutrients also favors plants that are 
carnivorous and can derive essential metabolites from animal flesh. Three 
species of such remarkable carnivores (remember the movie "Little Shop of 
Horrors" ) in bloom were the yellow butterwort, the horned bladderwort and the 
sundew. Each of these animal-eaters has a different mechanism to catch their 
prey. The butterwort has sticky leaves, the bladderwort has tiny traps on its 
roots, and the sundew has sticky droplets on the ends of its leaves, all of 
which ensnare small creatures. Thus nitrogen, phosphorus and minerals can be 
obtained which otherwise are not only scarce in the soil but subject to severe 
competition among plants. 

A very striking flower we saw was the Sabatia or marsh pink. Its five pink 
petals surround a yellow center bordered by red. This central design is thought 
to serve as a "bulls eye" to guide insects to the nectar reward and thus to 
cross pollinate the flowers. It might surprise you to know that the marsh pink 
is related to gentians. 

An unusual flower we found was the pine hyacinth or leather flower, a type of 
pinewoods Clematis in the buttercup family. It is only found in Florida and has 
a very strange seed pod structure consisting of long hairy filaments which bear 
no resemblance to the flower. Its bluish color suggests that it is particularly 
attractive to bumblebees as pollinators. 

Close to the pine hyacinth we found a number of procession flowers with a very 
different pinkish color and shape. These are a type of milkwort which have 
several close relatives in wet pine flatwoods such as bachelor's buttons, 
drumheads and candy root. These thrive in sandy soils and some species have 
bright orange flowers. 

A large and spectacular yellow flower in the edge of a wetland was the 
sneezeweed, Helenium. It is another of those "dyc" plants, the darn yellow 
composites that can be difficult to identify. The composites or asters are an 
amazing family of plants whose "flower" is actually made up of hundreds of 
individual flowers that comprise both the apparent petals (ray flowers) and the 
central area of disc flowers. The ray flowers do not usually reproduce but 
contribute to the fitness of their relatives in the disc which produce large 
numbers of seeds. This "socialistic" strategy of flower structure is extremely 
successful and highly evolved in comparison with simple primitive flowers such 
as the magnolias. 

So a walk in the woods and fields this time of year need not be without the 
chance to see wonderful flowers. Look for places where fire has occurred and 
follow the changes in vegetation over time and you will be richly rewarded by a 
profusion of interesting flowers. 

Bill Dunson 
Englewood, FL and Galax, VA 

http://lemonbayconservancy.org/news-blog/nature-notes-by-bill-dunson/ 







Attachment: Myakka State Forest Gordon Smith Trail FNPS members 2.12.15 Bill Dunson IMG_5209 aa.jpg
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Attachment: Butterwort P lutea Myakka State Forest 2.12.15 Bill Dunson IMG_5212 aa.jpg
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Attachment: Bladderwort Utricularia cornuta MSF 2.1.15 Bill Dunson IMG_5040 aa.jpg
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Attachment: Sundew MSF 2.1.15 Bill Dunson IMG_5075 aa.jpg
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Attachment: Sabatia at My State Forest 2.12.15 Bill Dunson IMG_5206 aa.jpg
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Attachment: Pine hyacinth at MSForest Gordon Smith Trail 2.7.15 Bill Dunson IMG_5145 aa.jpg
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Attachment: Pine hyacinth seed Clematis baldwinii MSF 2.1.15 Bill Dunson IMG_5008 aa.jpg
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Attachment: Procession flower Polygala incarnata MSF 2.1.15 Bill Dunson IMG_5057 aa.jpg
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Attachment: Sneezeweed Helenium MSF 2.1.15 Bill Dunson IMG_5046 aa.jpg
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