About Passiflora herbertiana Ker Gawl.
Passiflora herbertiana Ker Gawl. typically has 3-lobed leaves that are 6–12 cm long, with a slightly hairy undersurface. Leaf petioles are mostly 1.5–4 cm long, and have 2 glands at their apex. Linear stipules of this species are mostly 1–3 mm long. Flowers are 6 cm wide, and range in color from yellow to orange. The green berry that develops after flowering is 50 mm long, and has pale spots. The subspecies Passiflora herbertiana subsp. insulae-howei is similar to the main species, with some differences: its leaves are usually 4–8 cm long and 5–8 cm wide. This subspecies produces solitary orange-yellow to greenish flowers 60 mm across, which bloom from October to March. Its oval green fruits are 40–50 mm long; these fruits are edible but have a sickly-sweet flavor. The insulae-howei subspecies is endemic to subtropical Lord Howe Island, a Tasman Sea island belonging to Australia, where it grows widely across the island.
