Skeletonised pods of Physalis (Chinese lantern)

Lacy Lanterns: Physalis alkekengi

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When I visited Fullers Mill last month I noticed that the remains of their Chinese lanterns (Physalis alkekengi) had turned into little skeleton pods. I occasionally find leaf skeletons, as well as the skeletonised flowers of hydrangea, but this was a first for me.

I love the lace-like look of the veins left after the papery tissue of the pod has decomposed. To me, this is much more attractive than the orange ‘lanterns’ of the earlier stage (shown below). I’ve frequently seen these in gardens here, but only while they still had a solid pod, never before in the skeletonised form.

Orange pods of Physalis alkekengi in autumn

My curiosity about why some plants have parts that skeletonise led me to a swift dig around the internet. Apparently the veins are made up of lignin, a much more robust compound than the soft tissue of leaves, petals, or in this case, pods. The lignin structure of the veins can survive after the rest has decayed away. (Sometimes the skeletonisation is caused by insect damage, but the sheer number of pod skeletons showed that it wasn’t the case here.) Leaves with a particularly strong vein structure are more likely to work, whereas those with a protective, waxy surface are very unlikely to. A damp and sheltered environment, such as found amongst the trees at Fullers Mill, helps to encourage natural decay. In my own garden, I’ve noticed that I occasionally find skeletonised hydrangea flowers in a cool, slightly damp and sheltered area.

Although I’m not very keen on the orange pods, I might be tempted to grow some physalis. It would be worth it for the skeleton pods, and I can imagine how beautiful they would look with a coating of frost. I may have to go and look for some seeds!

A skeletonised pod of Physalis alkekengi (Chinese lantern)
A skeletonised pod of Physalis alkekengi (Chinese lantern)

4 thoughts on “Lacy Lanterns: Physalis alkekengi”

  1. I’ve seen lanterns or candle holders that look much like these pods. I wonder if the pods, or some other skeletonized plant, might have been the inspiration. The information you added about the cause, especially the role of lignin, was interesting. I mostly find skeletonized leaves, although I did once find a rain lily that showed the effect.

    We have native Physalis species known as ground cherries. They have similar pods, and I have a vague memory of them skeletonized. I’ll have to pay more attention and see if that actually happens.

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    1. Interesting, Linda, and just what Steve was envisioning in his comment. They would be a lovely inspiration for lanterns and candle-holders. This was the first time I’d seen the pods at this stage and I was enchanted with the way nature can create beauty from decay. I’m wondering if I can create a shady, moist spot to encourage this sort of decay – and put a pot of these Chinese lanterns there for the winter. A fun experiment!

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