From this websites page for P. toatoa
http://www.nzpcn.org.nz/flora_details.aspx?ID=1116
"Features
Small trees up to 15-25 m tall. Young or exposed plants conical in outline, shaded or enclosed plants with bushy, somewhat rounded, heavy crowns. Stems one or more, erect or leaning, strongly tapered, up to 900 mm diameter, with regular coppice and epicormic shoots. Branches distinctly whorled, robust, suberect, horizontal, or downturned with upturned ends, leaving prominent rounded to elliptic branch scars when shed, and characteristic raised ridges encircling the stems...."