Podaxis pistillaris is a very distinctive relative of the puffballs. It grows to 15 cm high and has a hard, woody stem. The large cap, which protects the blackish spore-bearing tissue, splits, and usually falls away at maturity, allowing the spores to be dispersed by wind. Large numbers may appear after soaking rains. It thrives in deserts and semi-deserts of Australia and other countries. In the Hawaiian Islands, it is frequently encountered along roadsides and in...
