The sampling strategy used for this study is random sampling. Over a measured area of the three regions we intend to study, 5 flowers from each of the selected areas would be selected and then their height above the ground level was measured.
A general description of the areas is such as below:
Muddy sand (A1) – no bushes or trees except certain algae or weeds on the ground. wet muddy sand.
Moist sand (A2) – thinner branches of some other plants, weeds, and moist sand not muddy.
Dry sand (A3) – most bushes with some other plants, dry sand. No weed.
The sampling unit would be the whole plant of contorted-pod evening primrose. The plant includes the branches, stems, and flowers such that any structure that is above ground level and is intact with plant structure fully would be considered one unit. To see the height variations, stems of each of the sample unit will be measured.
A quadrant of 8m x8m would be selected to pick up random five sample units from each of the areas. Because the areas are populated commonly by enough flowers for comparisons to be done, random sampling is easily done among each region’s quadrant. Five flowers that are 5 sample units would be checked and their stem length would be measured. Then from all the 5 flowers, an average height would be taken that would then give us a general idea of the height found in that region. The stem length would be measured from the ground level to the point where the highest branches come out from stem.
The weeds and bushes found in any of the areas are not removed or added on purpose, anything in the quadrant present would be kept and assessed accordingly.