English to Spanish Science Geology Vulcanology, Archaeology, Botany

Sample Group 1 Broussonetia papyrifera (Moraceae; mahute) This fast-growing crop plant was preferred due to harvesting when just a few years old and frequent replanting (Whistler and Elevitch 2004). Growth rings noted; vessels in many sizes ~80-135 mm diameter, early wood vessels large diameter; occur in tangential groups or clusters. Fibers thin walled; overall appearance similar to Artocarpus TS. Total count for 5 samples 66; samples are small diameter twigs, woody stems (Gail Murikami). Dates achieved are consistent for this taxa ID.
Sample level range: 250-420 cm. Results: cal A.D. 1465-1645

This is a description of plants found in the soil of the of the volcano.

How do you say VESSELS when it refers to plants? No son vasos, no es así?

¡Gracias colegas