“perennials”可以造什么句，perennials造句

Many weeds are deep-rooted perennials with tubers and rootstocks.

Plants that keep growing back are called perennials.

The first year's weeds on the Michigan plot are annual flowering plants, followed by tougher perennials like crabgrass and ragweed.

type genus of the Eriocaulaceae: rushlike aquatic or marginal perennials usually found in shallow waters of acid lakes and pools and bogs.

tuberous herbaceous perennials: dragon arum.

Citizens have taken it upon themselves to brighten these up by adding self-seeding annuals and long-blooming perennials.

Although a tanking economy has pushed these hardy perennials down the list, crime is still on Britons' minds, with a third of them saying it is one of the important issues facing the country today.

In the garden plant perennials such as bee balm, catmint, rosemary and other "strong-smelling" herbs thought to deter ants and other pests.

And what about all those perennials she planted?