Paper Trees By Yuken Teruya From Japan

One further problem with measuring baobabs Adansonia is that these trees store large amounts of water in the very soft wood in their trunks. This leads to marked variation in their girth over the year (though not more than about 2.5%), swelling to a maximum at the end of the rainy season, minimum at the end of the dry season.
The stoutest living single-trunk species in diameter are:
1. African Baobab Adansonia digitata: 15.9 m (52 ft), Glencoe Baobab (measured near the ground), Limpopo Province, South Africa. This tree split up in November 2009 and now the stoutest baobab could be Sunland Baobab (South Africa) with idealised diameter 10.64 m and correct circumference - 33.4 m.
2. Montezuma Cypress Taxodium mucronatum: 11.62 m (38.1 ft), Árbol del Tule, Santa Maria del Tule, Oaxaca, Mexico. Note though that this diameter includes buttressing; the actual idealised diameter of the area of its wood is 9.38 m (30.8 ft).