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The seeds are burs, and are very sticky. The plant is native but a well-known nuisance in deciduous forests of the eastern U.S. because the seeds can be difficult to remove from clothing and especially pet fur. [8] [9] The seeding part of the plant—the upper stem—dies earlier than most other plants, and becomes very brittle. Often the ...
Salvadora persica is a small tree or shrub with a crooked trunk, [3] [need quotation to verify] typically 6–7 metres (20–23 ft) in height. [1] Its bark is scabrous and cracked, whitish with pendulous extremities. The root bark of the tree is similar in colour to sand, and the inner surfaces are an even lighter shade of brown.
Euphorbia tirucalli (commonly known as Indian tree spurge, naked lady, pencil tree, pencil cactus, fire stick, aveloz or milk bush [3]) is a tree native to Africa that grows in semi-arid tropical climates. A hydrocarbon plant, it produces a poisonous latex that can cause temporary blindness. [4]
Once it has flowered and been pollinated, produces a small nutlet with tiny prickly barbs on it. These barbs allow the nutlet to stick to animal fur and human clothing as it is brushed up against, thus allowing seed to be transported and dispersed as far as the unsuspecting traveller takes it.
Hackelia (stickseeds) is a genus of plants in the borage family, Boraginaceae.It includes 54 species found in North America, western South America, temperate Eurasia, and Australia.
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Hackelia floribunda is a species of flowering plant in the borage family known by the common names large-flowered stickseed [2] and manyflower stickseed. [3]The plant is native to much of the western half of North America, in Canada and the Midwestern and Western United States.
Pods develop and persist on the tree, with the seeds remaining attached long after the pods have opened. The seeds are dislodged by heavy downpours that generally start around November in the islands. Many seeds germinate quickly, and a well-established seedling can grow to 4 ft (1.2 m) in height before the start of the next dry season.