The Passion Flower Bloom – A Fourfold Indicator of Design
- 17. März
- 5 Min. Lesezeit
The flowers of the passion flower (Passiflora) are not only exceptionally beautiful and striking, but also serve as a fourfold indicator of design (creation). They exhibit playful complexity, irreducible complexity, unnecessary beauty, and plasticity (plasticity = pre-programmed adaptation).
Playful Complexity:
The basic structure of passion flower blooms consists of five sepals and five petals, a corona (fringe of filaments), and a central column (an elongated floral axis). Positioned on this column at a height of 1–2 cm are five stamens (consisting of filaments and anthers), an ovary, and three styles and stigmas. The anthers and stigmas are offset from one another. In the center of the corona, surrounding the floral column, lies a nectary.
The styles move through three stages during the flowering period. In the bud, the styles and filaments stand vertically upward. As the flower opens, the filaments move into a horizontal position, while the styles remain upright longer (Stage 1) and only gradually bend downward to the level of the anthers (Stage 2). In Stage 3, the styles bend upward and the filaments downward. Subsequently, the flower closes again. Stages 1 and 3 prevent self-pollination, thereby contributing to the preservation of genetic diversity.
Depending on the species, size, and orientation, passion flowers are pollinated by various pollinators (wasps, bees, hummingbirds, etc.). However, they all share a common mechanism: the pollinators search for nectar beneath the anthers. Depending on the type of pollinator, they touch the stamens or stigmas with their back or head, thereby picking up or depositing pollen.
Pollination thus occurs under five prerequisites:
The positioning of the nectar.
The positioning of the floral column within the area of the nectary.
The correct distance between the corona and the stamens/stigmas.
The offset positioning of the stigmas relative to the anthers, so they do not obstruct the stigmas during pollination.
The flawless functioning of the movement of the filaments and styles.
Both the floral structure and the pollination process of the passion flower are more complex than in many other plant species. From simply structured flowers like the buttercup, we can infer that this complexity is not functionally—and thus evolutionarily—necessary. Since plants with simpler flowers reproduce just as effectively, it stands to reason that the complexity of the passion flower bloom offers no additional [selective] advantage.
This leads to the first indicator of design: A Creator is capable of making something more elaborate than functionally necessary for the sake of aesthetics and creativity. Blind natural processes, by contrast, have no sense for this. The bloom of the passion flower cannot be explained—or can only be explained with less plausibility—under evolutionary theory due to the lack of selection pressures that could have led to its complexity.
Irreducible Complexity:
In addition to playful complexity, there is irreducible complexity. Certain components are indispensable for pollination:
The nectary must be positioned near the floral column; otherwise, pollinators would not be lured beneath the anthers and stigmas.
Stamens and stigmas must be attached to the floral column.
Anthers and stigmas must be offset. The stigmas can only be pollinated in the second stage; if the anthers blocked access to the stigmas at that point, pollination would be prevented.
The movement of the styles must function perfectly. Should the ability to move have emerged through a step-by-step and imperfect process, any intermediate stage where the styles remained permanently upright would make pollination impossible, and the lineage would be selected out.
The distance between the nectary and the pollination apparatus determines which pollinators are capable of pollinating. A distance that is significantly too small or too large could hinder or even prevent pollination.
The coordinated complexity of the passion flower points much more strongly to a Creator than to evolution. For an evolutionary perspective, a plausible model of emergence would first need to be developed.
Unnecessary Beauty:
Now to the most obvious point: plants of the genus Passiflora are beautiful. There are over 530 species of passion flowers, and the variety of colors in their blooms ranges from white and yellow to red, violet, green, and pink. Some species are monochromatic, others multicolored. This applies not only to the corona but also to the styles, stigmas, and stamens, which are also found in various colors. In some species, the corona is ruffled.
Again, using the example of many simpler-looking flowers (buttercups, daisies, etc.), we see that the enormous beauty of the passion flower apparently brings no additional advantage for dispersal. As with playful complexity, selection pressures are absent here. A Creator who simply takes joy in His work offers the more plausible explanation.
Plasticity:
Plasticity refers to the ability of organisms to adapt quickly to environmental changes based on latent (hidden, not visibly expressed) variation programs. In this process, an environmental stimulus activates a latent variation program, which then enables rapid adaptation. When the environmental stimulus disappears, the adaptation also recedes.
A well-known example in humans is the thickening of the callus during increased mechanical stress on the skin. Increased permanent stress induces the formation of the callus, which is gradually reduced after the stress ends.
In the passion flower, plasticity is present, for example, in the pedicel (flower stalk). Depending on the species, the flowers are oriented upright, horizontally, or hanging. If the shoot is not aligned according to the intended floral orientation, the pedicel curves in the appropriate direction.
Why is this an indicator of design? Plasticity ultimately means pre-programmed adaptation, and this can be easily explained by a forward-looking Creator. Evolutionarily, plasticity is difficult to explain plausibly, as evolutionary mechanisms cannot plan ahead. Only a Creator can create variation programs for possible future circumstances.
Plastic reactions function like a control loop: a target value (setpoint) is given, the actual value is measured, and in the event of a deviation—which must also be determined—the attainment of the target value is initiated.
Plasticity thus requires irreducibly complex constellations:
A predefined target value.
A "measuring apparatus" to measure the corresponding environmental stimulus or the actual value.
A comparison between the target and actual values.
A transmission of signals.
A corresponding variation program that can be activated.
The passion flower also possesses this irreducible control loop in the form of the intended floral orientation as the target value, the orientation of the shoots as the actual value, and the curving of the stalk as the result of a plastic variation program.
Conclusion:
The blooms of the passion flowers are a powerful testimony to their Creator. In sum, they can be explained significantly more plausibly by a Creator than by evolutionary theory.
Special thanks to Dr. Reinhard Junker and Dr. Herfried Kutzelnigg for their feedback on my research and ideas, and for proofreading this article.
[This article has also been published in slightly abridged form by the “Wort und Wissen” study group.]