| Accepted Latin Names | Common Name | In Kent? | Type | Kent ref. | Status | Authority | Record No. |
|---|---|---|---|---|---|---|---|
| X Agropogon lutosus | Perennial Beard-grass | Yes S3 | A1 | 153--39 x 46--4 x 1 | N | (Poir.) P. Fourn. | 0920000025 |
| Xanthium ambrosioides | Argentine Cocklebur | Yes | A1 | 135--76--3 | Ne | Hook. & Arn. | 0920002636 |
| Xanthium spinosum | Spiny Cocklebur | Yes | A1 | 135--76--2 | Ne | L. | 0920002235 |
| Xanthium strumarium | Rough Cocklebur | Yes | A1 | 135--76--1 | Ne | L. | 0920002236 |
| Xanthocyparis nootkatensis | Nootka Cypress | Stace | A2 | 21--XAN--noo | Ne | (D. Don) Farjon & D.K. Harder | 0920002965 |
| Xeranthemum annuum | Immortelle | Clement | A3 | 135--XER--ann | L. | 0920009086 | |
| Xeranthemum cylindraceum | Clement | A3 | 135--XER--cyl | Sibth. & Sm. | 0920009087 | ||
| Xeranthemum inapertum | Clement | A3 | 135--XER--ina | (L.) Mill. | 0920009088 |