tristichous

American  

[tris-ti-kuhs] / ˈtrɪs tɪ kəs /

adjective

1. arranged in three rows.

2. Botany.  arranged in or characterized by three vertical rows.

---

tristichous British  

/ ˈtrɪstɪkəs /

adjective

1. arranged in three rows, esp (of plants) having three vertical rows of leaves

---

Etymology

Origin of tristichous

First recorded in 1855–60, tristichous is from the Greek word trístichos of three rows or verses. See tri-, -stichous

Example Sentences

Tristichous, in three longitudinal or perpendicular ranks.

From Project Gutenberg

It is to be noted that the distichous or 1/2 variety gives the maximum divergence, namely 180°, and that the tristichous, or 1/3, gives the least, or 120°; that the pentastichous, or 2/5, is nearly the mean between the first two; that of the 3/8, nearly the mean between the two preceding, etc.

From Project Gutenberg