is, false annuals). Of such are lily, crocus, onion, potato, bull nettle, and false indigo of the Southern states.
True annuals reach old age the first year. Plants which are normally perennial may become annual in a shorter-season climate by being killed by frost, rather than by dying naturally at the end of a season of growth. They are climatic annuals. Such plants are called plur-annuals in the short-season region. Many tropical perennials are plur-annuals when grown in the north, but they are treated as true annuals because they ripen sufficient of their crop the same season in which the seeds are sown to make them worth cultivating, as tomato, red pepper, castor bean, cotton. Name several vegetables that are planted in gardens with the expectation that they will bear till frost comes.
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Fig. 13.—A Shrub or Bush. Dogwood osier.
Woody or ligneous plants are usually longer lived than herbs. Those that remain low and produce several or
