Pappus (botany) Pappus (botany) The pappus is the modified calyx, the part of an individual floret, that surrounds the base of the corolla tube in flower heads of the plant family Asteraceae. The term is sometimes used in other plant families such as Asclepiadaceae (milkweeds), whose seeds have a similar structure attached, although it is not related to the calyx of the flower. The Asteraceae pappus may be composed of bristles (sometimes feathery), awns, scales, or may be absent. In some species, the pappus is too small to see without magnification. In species such as Dandelion or "Eupatorium", feathery bristles of the
Kamay Botany Bay National Park part of the first landing of the "Endeavour" in Australia. Banks and Solander collected a large number of iconic Australian plant species, including some that later became type-specimens which have important scientific and research value. Botany Bay lies within a small tectonic depression known as the Botany Basin which in turn is situated within the larger Sydney Basin comprising modified sedimentary deposits laid down about 270 million years ago during the Permian period. The northern and southern headlands featuring Hawkesbury sandstone cliffs which were formed during the Triassic period, between 200 and 250 million years ago. On the Kurnell peninsular,