If something is filipendulous, it means it’s hanging by a thread or a filament. It’s most often used to describe things that appear suspended by delicate or slender attachments, and look like they could drop at any moment. Like a spider suspended by a single thread. Or my sanity.
Like many of our words (especially the complicated ones), filipendulous comes from Latin. It’s a combination of the Latin word ‘filum’ meaning ‘thread’, and ‘pendere’ which means ‘to hang’.
You’re most likely to come across the word filipendulous in botany, where it’s used to describe plants with structures on fine stalks or threads. There’s actually a genus of plants called Filipendula containing 12 species of perennial herbaceous plants. That includes meadowsweet and dropwort, and the excellently named queen-of-the-forest (Filipendula occidentalis) and queen-of-the-prairie (Filipendula rubra), both of which are native to North America.
Filipendula species are food plants for the larvae of some Lepidoptera (AKA butterflies and moths) species, including the emperor moth, one of the biggest in the world. The largest emperor moth has a wingspan of between 15 and 20cm (6 to 8 inches). Yeesh. (I’ve literally just finished reading ‘The Travelling Bag’ by Susan Hill which makes this fact particularly freaky. If you know, you know.) These moths live in Europe, but haven’t made it across the Channel to us (YET). Having said that, our largest moth is the privet hawk moth, which can get up to a not-too-shabby 12cm (4.7in) wingspan.
You wouldn’t want either of those flapping round your bedroom light, would you?
