caudex

• 指草本多年生植物粗壮而稳定的茎，或棕榈及树蕨的木质茎干。

A noun referring to the persistent, thickened stem of a herbaceous perennial plant, or the woody stem of palms and tree ferns.

1. Persistent thickened stemC2formalscientific

   The thickened, often woody base of a herbaceous perennial plant that persists above ground and stores water or nutrients.

   茎干膨大

   • The caudex of the baobab tree can store thousands of liters of water.
   • Many succulent plants have a prominent caudex that helps them survive drought.
   • The gardener carefully transplanted the caudex to a larger pot.

2. Woody stem of palms and tree fernsC2formalscientific

   The main, woody stem or trunk of certain plants like palms and tree ferns, which is often unbranched and bears leaves at the top.

   茎干

   • The caudex of the palm tree was covered in old leaf scars.
   • Tree ferns have a distinctive caudex that is often used in landscaping.
   • The botanist studied the growth rings of the caudex to determine the plant's age.

   同义词stipetrunk