| POISONIVY | North American plant such as Rhus radicans, which causes an itching rash on contact |
| POISONSUMAC | Swamp plant that can cause a rash on contact |
| PALM | 'Let me tell you, Cassius, you yourself/ Are much condemned to have an itching ___' (Shakespeare Julius Caesar) (1599) (4) |
| ASTASIS | Lack of motor coordination which causes an inability to stand, walk or sit without assistance (7) |
| ATOM | A small particle which causes an explosion when split |
| TRUMPETVINE | With some brass, and according to Jeremy, Campsis radicans is commonly called the ___ ___! (6,5) |
| TANAKAEA | - - - radicans, Japanese foam flower (8) |
| OXEYE | Yellow-flowered North American plant such as the Smooth ___ (5) |
| OBEYS | Yellow-flowered North American plant such as the smooth - (5) |
| BLACKEYED | North American plant such as Rudbeckia hirta (5-4,5) |
| SUSAN | North American plant such as Rudbeckia hirta (5-4,5) |
| MARIGOLD | Tropical American plant such as the French -, Tagetes patula (8) |
| NETTLE | Plant that causes skin irritation on contact (6) |
| COOLINGTOWER | Tall structure in which water evaporates on contact with air (7,5) |
| SOUNDINGHARSH | Endless advice for horrible rash on his head is grating on the ears (8,5) |
| BREAKSOUT | Escapes, appears as a rash on body? (6,3) |
| ILLCONSIDERED | Rash on face, evidently sore under nose, but no head cold |
| SCATHING | Painful rash on the bottom after chap sits in grass |
| MARSHALLINGYARD | Changing trains here could be alarmingly rash on day (11,4) |
| SUMAC | Plant of the genus Rhus with reddish cone-shaped fruits used as a spice (5) |
