| BANKSIA | Flower named after the Endeavour's botanist (7) |
| IRIS | Flower named after the Greek goddess of the rainbow |
| PEONIES | Flowers named after the Greek physician of the gods |
| ASTERS | Flowers named after the Greek word for "star" |
| TAXI | - Driver; 1976 Martin Scorsese film based on the endeavours of a disturbed Vietnam veteran character played by Robert De Niro (4) |
| TEASPOON | Cook's measurement for a spot on structure encircling the Endeavour's prow (8) |
| RAFFLES | With an ant, butterfly fish, horse race, woodpecker and the world's largest flower named after him, a statesman and naturalist who founded Singapore, the Zoological Society of London and London Zoo (7 |
| FUCHSIA | Showy flower named after a 16th century German botanist (7) |
| WILLIAM | Sweet flower named after 21Ac 1Ac, heir to the throne (7) |
| LOBELIA | Genus of plants with five-lobed flowers named after a Flemish botanist (7) |
| TEAROSE | Flower named after a drink |
| CLARKIA | North American plant cultivated for its red, pink or purple flowers named after explorer William Clark (7) |
| PETUNIA | Flower named for an old French word for tobacco |
| DAHLIAS | Flowers named for a Swedish botanist |
| DAHLIA | Flower named after a Swedish botanist, d. 1789 (6) |
| NARCISSUS | Mythical self-absorbed youth and the bulb flower named after him |
| LARKSPUR | Flower (named after excrescence on a bird?) (8) |
| LUPIN | Flower named after wolf (5) |
| PROTEA | Native South African flower named after Greek god Proteus (6) |
| HYACINTH | Fragrant, bell-shaped flower named after a lover of Apollo (8) |
