From 2speccers2tools wiki

The Crown-o-Fronds evolved from populations of Fringefrond Beardnoms that developed a second distinct whorl of leafy fronds to get more sunlight. The new whorl of fronds deriving from their earlier systems where new fronds grow in and replace the older whorls that then fall off, the one difference being that the older set of fronds grow larger and last longer before eventually deteriorating and falling off as the younger whorl grows in to fill their place while a third whorl above both previous whorls grows in.

The Crown-o-Fronds still retains most of the other features of their ancestors with fairly minimal changes, such as retaining the fuzz covering their stem derived from lignaceous nodules and the dying fronds of old whorls which eventually fall off. When the old fronds fall off, they help provide nutrients to the nomflora as they decompose. The fronds of the Crown-o-Fronds are also still fringed so wind can pass through them without causing much damage, if they get any at all. The cultures of Nitropellets that inhabit the roots of a Crown-o-Fronds have hardly changed at all, still serving a crucial role in extracting and processing precious nitrogenous compounds from the soil for their host to incorporate. The lead is also still primarily accumulated within the tissues of their stem, to give them decent protection against the occasional Radfting mamal that makes their way inland though the entire organism still has at least small amounts of lead in all of its tissues.

Among populations within the cooler climatic areas of Kamm Forest, the fronds of a local Crown-o-Fronds still take on a purple coloration as autumn approaches, then becoming mauve-taupe before winter, at which point they turn pale and eerie. Their vibrant cyan coloration will still eventually return with the onset of spring.

Like its ancestry, the Crown-o-Fronds sends a sporophore high into the air from which gametes ride wind currents to receptive other sporophores. Once conjugated, the sporophore then sends fertile spores into the air, which will hopefully be carried far enough away to settle and germinate in lands away from their parents. To give their spores an advantage in terms of the distance they can be carried, the sporophore of a Crown-o-Fronds has become much longer than their ancestors resulting in the whole nomflora being taller than their despite the fact the Crown-o-Fronds has become shorter overall in the rest of their anatomy. Alternatively, given the space and access to resources, clones can be bud off from runners.