Beach evening primrose
Oenothera drummondii subsp. drummondii, Fam. Onagraceae
Perennial, softly hairy herb with trailing stems to about 50cm long
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.
|Form or habit:||Herb|
Alternate simple, grey-green densely hairy, narrowly obovate to oblong-ovate, 10-70 x 5-15mm, apex rounded or pointed, base narrowing to 5-30mm long stalk; margins mostly entire or sometimes with shallow teeth.
|Flower description:||Yellow, solitary axillary, 20-40mm in diameter, with 4 spreading petals and hairy tubular calyx 20-40mm long.|
|Fruit description:||Brown, stalkless 4-valved, often curved capsules, 25-40 x about 2mm, with long hairs; opening at the apex to release numerous tiny seeds.|
|Food source for:|
|Toxicity:||No toxicity known|
|Origin:||South America and Mexico|
|Notes:||Spread by: seeds spread with sand by wind and tidal flows, especially during rough weather. Invades/threats: coastal strand and frontal foredunes. Notes: first recorded at the Mackay Harbour and misidentified as O. affinis in 1992 when there were only a few plants; now common along the beach front from the Harbour to Lamberts Beach. Environmental weed.|
|Information sources:||Mackay Regional Pest Management Group (2018) Weeds of the Mackay Whitsunday Region Second Edition.|