File:Opuntia stricta var stricta flower1 (14706625322).jpg
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| Description | Erect, succulent perennial cactus up to 2 m tall, but more commonly 1 m tall. Reproduces by seed and from branch segments. Segments flattened, covered with clumps of short tufts of hair and occasionally 1 spine in the axils of short-lived scale leaves. Flowers are pale yellow, forming pear shaped, purple to red fruit. Seeds germinate year-round. First flowers develop when plants are at least 3 years old. A native of tropical & subtropical America, it grows well in both exposed and semi-shaded situations. Adapted to a broad range of soil types and widespread especially in NSW and Qld. Dispersed by segments attaching to animals and machinery. Viable seeds spread in the droppings of birds, foxes and other animals. Invasive pest species that can threaten grazing and agriculture on productive land. Biological control is the most effective control method. There are two agents - cactoblastis (Cactoblastis cactorum) and cochineal (Dactylopius opuntiae), which are more active in dry, warm areas of the state. Other control methods include ploughing, burning and chemical application. |
| Date | |
| Source | Opuntia stricta var stricta flower1 |
| Author | Harry Rose from South West Rocks, Australia |
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This file is licensed under the Creative Commons Attribution 2.0 Generic license.
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This image was originally posted to Flickr by Macleay Grass Man at https://www.flickr.com/photos/73840284@N04/14706625322. It was reviewed on 26 May 2015 by FlickreviewR and was confirmed to be licensed under the terms of the cc-by-2.0. |
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| current | 15:09, 26 May 2015 | | 1,200 × 1,600 (730 KB) | Amada44 (talk | contribs) | Transferred from Flickr via Flickr2Commons |
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