The population then was at least 500 plants, with over 100 flowering spikes; by 1958 the population had reached 2,854 plants, with about 10% flowering, a population level and flowering proportion that were maintained throughout the 1960s. By 1971 however, only 252 plants were present, due to scrubbing over, as a result of the erection of the protective fence.
The population was at least 500 plants, with over 100 flowering spikes; by 1958 it reached 2,854 plants, with about 10% flowering, a population level and flowering proportion that were maintained throughout the 1960s. By 1971, only 252 plants remained due to over-scrubbing as a result of the protective fence's construction.