Image from the Biodiversity Heritage Library.
Contributed by Smithsonian Institution Archives.
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Transcription
Lepturus
s.- seedling or a one crowned plant.
m.- two crowns or many, clump two to five in. in dia. at ground level.
l.- more than five in. in dia. at ground level.
Portulaca
s.- seedling, plants one to six inches high.
m.- plants six to eight inches high, stems to four in. in dia. at ground level.
l.- plants about eight inches high, stems more than four in. in dia. at ground level.
Boerhaavia
s.- seedling, stems one to five in. long.
m.- stems five to twelve in. long.
l.- stems exceeding twelve inches in length.
Digitaria
s.- seedling or a one crowned plant.
m.- plant two to eight crowned, from three to eight in. in dia. at ground level.
l.- plant with eight or more crowns, more than eight in. in dia. at ground level.
Tribulus
s.- seedling, stems less than six in. in length.
m.- stem from six to eighteen in. in length.
l.- stems in excess of eighteen in. in length.