| POINSETTIA | Plant species of the spurge family (10) |
| YERBA | ___ mate, plant species of the holly genus (5) |
| OIL | The castor - - - plant - Ricinus communis of the spurge family (3) |
| EUPHORBIA | Plant genus of the spurge family to which poinsettia belongs (9) |
| CROWNOFTHORNS | Spiny shrub of the spurge family (5,2,6) |
| JATROPHA | Tropical plant belonging to the spurge family used as a purgative and a source of biofuel (8) |
| ADELIA | Plant in the spurge family |
| CASSAVA | Starch-rich South American plant in the spurge family (7) |
| EXTINCTION | The wiping out of all living members of an animal or plant species (10) |
| CHIMPANZEE | Hominid species of the genus Pan which split from the human species 4-6 million years ago (10) |
| SPEEDWELLS | Plants of a species of the Veronica genus (10) |
| CORNFLOWER | Wild flower with vivid blue petals; a native UK plant species that has suffered a decline due to the |
| SANDMYRTLE | Common name for Kalmia buxifolia, a flowering shrub species of the heather family (4,6) |
| FLORA | All the plant species of a region (5) |
| CROTON | Tropical plant of spurge family (6) |
| BIOMASS | Form of energy produced from organisms that once lived. It's also the term for the weight or total quantity of living organisms of one animal or plant species or of all the species in a community. (7) |
| CROWNIMPERIAL | Garden plant, species of fritillary (5,8) |
| SWIFTS | Fastest of the bird species, of the family Apodidae, capable of more than 160kmh (6) |
| SUMATRA | One of the world's top-ten largest islands, home to some of Earth's rarest animal and plant species |
| BOTANYBAY | It gets its name from the great variety of new plant species found there on Captain Cook's expedition of 1770 (6,3) |
