Leucas
Leucas lavandulifolia, Fam. Lamiaceae
Erect aromatic annual herb 30-80cm tall, with square stems. Stems and branches covered in soft short hairs. Previously Leucas linifolia.
| Weed Category: |
Other invasive plants Invasive plants that are not prohibited or restricted invasive plants, but are known to spread readily and cause negative impacts, within the region.
|
| Weed: | Yes |
| Form or habit: | Herb |
| Family: | Lamiaceae |
| Leaf: | Simple Opposite Opposite simple, long narrow widest below the middle, 30-80 x 3-15mm, more or less hairy on both surfaces; margins with few shallow teeth. |
| Flower conspicuous: | Conspicuous |
| Flower colour: |
White |
| Flower description: | White, two lipped, about 10mm long, upper lip furry, lower lip spreading; borne in dense axillary clusters. |
| Fruit conspicuous: | Inconspicuous |
| Fruit colour: |
Brown |
| Fruit: | Dry |
| Fruit description: | Four smooth oblong-angular brown nutlets, about 3 x 1mm contained within a tubular curved calyx, 8-9mm long; mouth oblique with 7-10 teeth of unequal length, glabrous or with very short hairs. |
| Habitat: | |
| Distribution | |
| Food source for: | |
| Toxicity: | Toxic if ingested |
| Origin: | Southern Asia, India to New Guinea |
| Notes: | Spread by: contaminated soil. Invades/threats: roadsides, disturbed sites and fallow land. Notes: numerous occurrences within this district; suspected of poisoning cattle. Environmental weed. |
| Information sources: | Mackay Regional Pest Management Group (2018) Weeds of the Mackay Whitsunday Region Second Edition. |
