Identified as Apiaceae based on the umbel arrangement of the fruits. Identified as the genus Cyclospermum based on the stalked, compound arrangement of the umbels; lack of bracts; and filiform leaf segments. Cyclospermum leptophyllum is the only species of Cyclospermum present in NSW.
Identified as genus Sonchus based on the alternate, pinnately lobed leaves; yellow florets (apparent when buds were squished); erect stem; multiple whorls of bracts; and wingless seed heads. Further identified as the species Sonchus oleraceus because the leaves are soft and not leathery.
Family - Araceae
Genus - Zantedeschia
Species - Zantedeschia aethiopica
Date - October 1, 2022
Locality - Karloo Pools Walking Tk, Royal National Park, NSW
34.08906ºS, 151.01201ºE
Habitat - Growing together in large groups on either side of a path at Royal National Park. One side bordered a grass field and the other side grew along Heathcote Brook. Scribbly gums were growing nearby but these flowers dominated most of the area.
Habit - Shrub that is approximately 1.5m in height. White flower fused into a funnel shape with a yellow center protrusion. Has large triangular leaves on fleshy stems.
Comments - Native to South Africa. Often dominate areas in which they grow.
Family - Asteraceae
Genus - Erigeron
Species - Erigeron bonariensis
Date - October 11, 2022
Locality - Bronte Rd, Randwick, NSW
-33.894666, 151.250328
Habitat - Between the road and footpath on the way to Westfield mall. Area was unmanaged and overgrown with weeds. However only was of this particular species was present
Habit - Herb of about 50 cm tall in height. Stems and leaves are hairy. Many white fruits are at the end of stems with bristles making it look like a “puffball”.
Comments - Notably difficult to remove from the ground
This plant a Monocot in the Cyperaceae family as it looks like a sedge, and there are spikelets at the ends of the branchlets typical to this family. It's found in a busy woodland area and about 50cm tall from the photo as it is laying sideways, overall about 1m long. The simple long curly, sheathing leaves has the appearance that it was burnt (when in reality it had not), which tells us it likely in the Caustis genus according to Robinson. I believe this plant is identified to be a Caustis flexuosa due to how curly the branchlets are, and the thin spiklets about 7mm found at the ends of the branchlets. Plants of this species also have dark brown sheaths along the stems which can be identified in the image. I am firm with this conclusion as the other close possibility this plant may be is the Caustis pentandra, however the spikelets are too short and the branchlets are not curly enough.
This plant (2m tall, small tree) belongs in the Sapindaceae family due to the distinct capsule shape of the fruit that are all grouped up as an inflorescence on the terminal panicles and leaf arrangement alternating as seen in one of the observation photos. Plants in this family that belongs in the Dodonaea genus have capsular fruits as seen in the observation, also backed up by the simple, alternate and pinnate leaves. Unfortunately, no flowers are seen in this plant as they have all matured into fruits, however the triangular formation of the fruit capsules narrow it down to the Dodonaea triquetra. It is also interesting to note that this specimen is found about 40m away from a running creek. The fruit has a very similar shape to the Dodonaea viscosa ssp. angustifolia, but we are able to exclude this because the leaves are not as long, and the colours of the fruit is not red once matured.