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Dendrosenecio
''Dendrosenecio'' is a genus of flowering plants in the Asteraceae, sunflower family. It is a segregate (taxonomy), segregate of ''Senecio'', in which it formed the subgenus ''Dendrosenecio''. Its members, the giant groundsels, are native to the higher altitude zones of ten mountain groups in equatorial East Africa, where they form a conspicuous element of the flora. Description They have a giant rosette habit, with a terminal leaf rosette at the apex of a stout woody stem. When they bloom, the flowers form a large terminal inflorescence. Concomitantly, two to four lateral branches are normally initiated. As a result, old plants have the appearance of candelabras the size of telephone poles, each branch with a terminal rosette. Species ''Dendrosenecio'' varies geographically between mountain ranges, and altitudinally on a single mountain. There has been disagreement among botanists as to which populations of ''Dendrosenecio'' warrant recognition as species, and which should be r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dendrosenecio Keniodendron
''Dendrosenecio keniodendron'' or giant groundsel is a species of the genus ''Dendrosenecio'' of the large family Asteraceae and is one of the several species of giant groundsels endemic to the high altitudes of the Afrotropic, including ''Dendrosenecio johnstonii'' ('' Senecio battiscombei'') occurring on Mount Kilimanjaro, Mount Kenya, and the Aberdare Mountains, '' Dendrosenecio keniensis'' occurring the lower alpine zone of Mount Kenya and ''D. keniodendron'' occurring in higher and drier sites on Mount Kenya. The giant rosette plants, sometimes tall, often grow in even-sized stands (presumably even-aged), with different understory communities under different-aged stands. Description ''Dendrosenecio keniodendron'' is a giant rosette plant occurring at altitudes between and . '' D. keniensis'' grows in wetter sites, and therefore at lower altitudes on average, but their ranges abut and they occasionally hybridise. Leaves and stems: ''D. keniodendron'' has woody stem ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
