clasping roots
Clasping roots are mainly found in plants called epiphytes. (parasitic plants). Epiphytes grow on top of other plnats and therefore they have no roots underground. Their roots perform the function of support on the host plant. They absorb water from the atmosphere and mineral salt from dust particles which fall on the roots of the Epiphyte.
Provide support to weak plants
Climbing plants generally develop tendrils to hold on the support for climbing up. some times these are provided with climbing roots also.
Twining, e.g morning glory; clasping roots e.g English ivy; scrambling e.g roses; adhesive pads e.g Boston ivy; Tendrils e.g money plant
The roots and stem. While roots hold most plants in place, and vines and some other plants have tendrils, slender stem-like structures, that attach themselves to objects to support the weight of the plant.
the Banyan Tree
There are over 20,000 species of orchid. Do you want to be a bit more specific?
Orchids do not grow in soil- their roots are frequently in the air, attaching them to other things. Where most plant roots are hidden from light, orchid roots are exposed to the light.
Climbers have weak stems and devices to climb up by hooks, tendrils or climbing roots.
How land plants get sunlight:Most land plants and trees have strong, woody stems to hold up their branches and leaves to get sufficient sunlight. Some plants however have soft, non-woody stems and cannot grow upright. So they need to have special adaptations to get their leaves in the best position to obtain sunlight. Such plant can be grouped as "creepers" or "climbers."CREEPERS:Creepers grow horizontally on the ground. Their shoots spread out on all sides of the main stem. Carpet grass and minosa are examples of creepers.CLIMBERS:Climbers climb onto supports such as walls, fences or other plants that have strong stems. Some climbers have tendrils or clasping roots to attach themselves to the supports.
The orchid.
From rainwater and from moisture on any surface touching its roots.