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Caulirosulate - arranged in rose-like clusters at the end of the stem (to describe leaves or bracts). Cespitose – forming dense tufts, normally applied to small plants typically growing into mats, tufts, or clumps. Creeping – growing along the ground and producing roots at intervals along the surface.
Pruning and cutting back of the plant often leads to re-sprouting. Two natural biological controls include the rose rosette disease and the rose seed chalid (Megastigmus aculeastus var. nigroflavus). [8] Patches of introduced multiflora rose in Pennsylvania are displaying symptoms of rose rosette disease, which can lead to decline and death. [9]
They can be follicles, capsules, nuts, achenes, drupes , and accessory fruits, like the pome of an apple, the hip of a rose, or the receptacle-derived aggregate accessory fruit of a strawberry. Many fruits of the family are edible, but their seeds often contain amygdalin, which can release cyanide during digestion if the seed is damaged. [18]
The best time to plant desert rose seeds is right at the start of spring. Before potting, germinate the seeds by soaking them for several hours or a full day to rehydrate them. Then, place the ...
Plant breeders' rights (PBR), also known as plant variety rights (PVR), are rights granted in certain places to the breeder of a new variety of plant that give the breeder exclusive control over the propagating material (including seed, cuttings, divisions, tissue culture) and harvested material (cut flowers, fruit, foliage) of a new variety for a number of years.
A cultivar is a kind of cultivated plant that people have selected for desired traits and which retains those traits when propagated.Methods used to propagate cultivars include division, root and stem cuttings, offsets, grafting, tissue culture, or carefully controlled seed production.
The Portland roses were long thought to be the first group of crosses between China roses and European roses, and to show the influence of Rosa chinensis. Recent DNA analysis however has demonstrated that the original Portland Rose has no Chinese ancestry, but has an autumn damask/gallica lineage. [ 27 ]
From the rosehips, a thin fleshy layer that surrounds the seeds is eaten raw or cooked. The seed hair must be removed; It has to be handled very carefully. The seed hairs must not get into the mouth and throat. The seeds are a good source of vitamin E. The seeds can be ground and mixed with flour or added to other foods. [10]
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