1. (n.) A genus of plants; the lilac.

2. (n.) The mock orange; -- popularly so called because its stems were formerly used as pipestems.

Persian berry alder azalea bayberry blackberry blackthorn box bramble brier brier bush broom bush caper cinchona coca coffee cranberry currant daphne elder forsythia frangipani fuchsia furze gardenia gooseberry gorse greasewood guava haw heather hemp tree henna hibiscus holly huckleberry hydrangea indigo juniper jute laurel leatherleaf lilac magnolia manzanita mock orange mountain lilac myrtle ninebark oleander photinia poison sumac privet pussy willow rhododendron rose of Sharon rosebay rosemary sage sagebrush sand myrtle scrub shrubbery sisal snow wreath snowberry spiraea sumac symplocos syringa tamarisk veronica witch hazel yellowroot