WordNet (r) 3.0 (2006):

bald cypress
    n 1: smaller than and often included in the closely related
         Taxodium distichum [syn: pond cypress, bald cypress,
         Taxodium ascendens]
    2: common cypress of southeastern United States having trunk
       expanded at base; found in coastal swamps and flooding river
       bottoms [syn: bald cypress, swamp cypress, pond bald
       cypress, southern cypress, Taxodium distichum]