| DICKSONIA | Genus of tree ferns in the order cyatheales (9) |
| REEF | Marine formation incorporating part of tree fern |
| MAIDENHAIR | One of those from Ferns in horse race going on ahead (10) |
| EDEN | Regularly tend ferns in famous garden (4) |
| NOTOTREMA | The pouch-toad, a South American genus of tree frogs (9) |
| EVERGREEN | Always full of leaves, untidy verge has tree ferns even (9) |
| INTERFERE | Tree fern damaged after I get in the way (9) |
| HIERARCHY | Elevated growth rate of Covid-19 is key, reportedly, in the order of things (9) |
| EBENACEAE | Family of flowering plants in the order Ericales which includes persimmon (9) |
| MISTLETOE | Plants in the order Santalales, often associated with Christmas (9) |
| ARMADILLO | New World placental mammal in the order Cingulata (9) |
| BRAZILNUT | South American tree in the order Ericales, or its large, edible seeds (6,3) |
| FLEABITES | Marks left by a parasitic insect in the order Siphonaptera (4, 5) |
| DECREASES | Makes less, as can be seen in the orders (9) |
| ARABLE | Form of farming or agronomy based on the cultivation of field crops; or, the surname of Wilbur's owner Fern in Charlotte's Web (6) |
| BRUNFELSIA | Shrub or small tree fern genus in the petunia family, with the common names of yesterday-today-and tomorrow (10) |
| AZOLLA | Fern in area covering the whole of Australia, from the south |
| DAME | From the Latin for "mistress of the household", word for a female ruler in its earliest sense, now a title given to a woman with the rank of Knight Commander or a holder of the Grand Cross in the orde |
| ILEX | Genus of tree that includes holly and its relatives (4) |
| RACER | Right genus of tree snake |
