Interesting.
Source:
Centre for Plant Biodiversity Research Quote:
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Lignotubers occur in some but not all Eucalyptus species. They also occur in some Corymbia species. Lignotubers are a woody swelling, partly or wholly underground and have been shown to contain a mass of vegetative buds and substantial energy reserves. Species that possess lignotubers are often those tolerant to fire, drought and defoliation. Those species that do not produce lignotubers are usually prolific seed producers and survive such disasters as fire with massive seedling regeneration.
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So not all have lignotubers.
Source:
CSIRO PUBLISHING - Australian Journal of Botany Quote:
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A further 16 taxa are also known to be non-lignotuberous, but these are capable of producing epicormic regrowth from the trunk following crown destruction and are defined as stem sprouters.
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