Pappobolus Cajamarcensis
''Pappobolus'' is a genus of flowering plant in the family Asteraceae native to the Andes Mountains of Colombia, Ecuador, and Peru. ''Pappobolus'' is distinguished from closely related genera by its combination of shrubby habit and usually caducous pappus. Within the genus there is considerable variation in the pappus, a structure that has traditionally been considered a key to defining genera in Asteraceae, and this led to earlier confusion in defining the genus. Most of the species of the genus were originally described as members of ''Helianthus'', based on having a pappus of two caducous awns. When it was recognized that they were not part of the exclusively North American ''Helianthus'', they were transferred to a genus called ''Helianthopsis''. The prominent synantherologist S.F.Blake, however, much earlier named the genus ''Pappobolus'' based on species that have a pappus of numerous caducous awns. It was only during the work of Panero on the genus that the con ...
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Flowering Plant
Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (), commonly called angiosperms. The term "angiosperm" is derived from the Greek words ('container, vessel') and ('seed'), and refers to those plants that produce their seeds enclosed within a fruit. They are by far the most diverse group of land plants with 64 orders, 416 families, approximately 13,000 known genera and 300,000 known species. Angiosperms were formerly called Magnoliophyta (). Like gymnosperms, angiosperms are seed-producing plants. They are distinguished from gymnosperms by characteristics including flowers, endosperm within their seeds, and the production of fruits that contain the seeds. The ancestors of flowering plants diverged from the common ancestor of all living gymnosperms before the end of the Carboniferous, over 300 million years ago. The closest fossil relatives of flowering plants are uncertain and contentious. The earliest angiosperm fossils ar ...
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