# Nyssa aquatica

Nyssaceae. 5 equations apply. Each output lists them most specific first: fitted on this species, on a variety of it, pooled fits that included it, then its genus and family. Within each step, equations the authors advised against go last, then those read from compilations; more trees come first. The order shows how specific the evidence is, not which equation predicts best.

Wood density 0.44 g/cm³, estimated from 303 samples in 4 studies by the [Global Wood Density Database v.2](https://doi.org/10.5281/zenodo.16919509) (Fischer et al. 2026, https://doi.org/10.1111/nph.70860; CC BY 4.0).

## Aboveground biomass

1. Westfall et al. 2024 (this species): Fitted on this species; 150 trees; DBH 2.54–50.55 cm; Read from the original paper.
   - [NSVB water tupelo, species-level (all ecodivisions): total aboveground biomass (without foliage), Schumacher-Hall model (Eq. 1)](https://treeallometry.org/equations/westfall-2024-nyssa-aquatica-agb/), Westfall et al. 2024: Nyssa aquatica, United States; inputs DBH + Height; DBH 2.54–50.55 cm; 150 trees.

2. Chojnacky et al. 2014 (pooled, includes it): Pooled fit on 13 named species and others, this one included; Number of trees not stated; DBH 3–64 cm; Read from the original paper.
   - [North American taxa group: Cornaceae/Ericaceae/Lauraceae/Platanaceae/Rosaceae/Ulmaceae (Table 5)](https://treeallometry.org/equations/chojnacky-2014-mixed-hardwood/), Chojnacky et al. 2014: Cornaceae/Ericaceae/Lauraceae/Platanaceae/Rosaceae/Ulmaceae (Cornus florida, Nyssa aquatica, N. sylvatica, Arbutus menziesii, Oxydendrum arboreum, Umbellularia californica, Sassafras albidum, Platanus occidentalis, Amelanchier spp., Prunus pensylvanica, P. serotina, P. virginiana, Sorbus americana, Ulmus americana, U. spp.), United States; inputs DBH; DBH 3–64 cm.

## Branch biomass

1. Westfall et al. 2024 (this species): Fitted on this species; 150 trees; DBH 2.54–50.55 cm; Read from the original paper.
   - [NSVB water tupelo, species-level (all ecodivisions): branch biomass (wood and bark), Schumacher-Hall model (Eq. 1)](https://treeallometry.org/equations/westfall-2024-nyssa-aquatica-branch/), Westfall et al. 2024: Nyssa aquatica, United States; inputs DBH + Height; DBH 2.54–50.55 cm; 150 trees.

## Foliage biomass

1. Westfall et al. 2024 (this species): Fitted on this species; 193 trees; DBH 2.54–50.55 cm; Read from the original paper.
   - [NSVB water tupelo, species-level (all ecodivisions): foliage biomass, Schumacher-Hall model (Eq. 1)](https://treeallometry.org/equations/westfall-2024-nyssa-aquatica-foliage/), Westfall et al. 2024: Nyssa aquatica, United States; inputs DBH + Height; DBH 2.54–50.55 cm; 193 trees.

## Stem volume

1. Westfall et al. 2024 (this species): Fitted on this species; 379 trees; DBH 2.54–85.09 cm; Read from the original paper.
   - [NSVB water tupelo, species-level (all ecodivisions): total stem wood volume (inside bark), Schumacher-Hall model (Eq. 1)](https://treeallometry.org/equations/westfall-2024-nyssa-aquatica-volume/), Westfall et al. 2024: Nyssa aquatica, United States; inputs DBH + Height; DBH 2.54–85.09 cm; 379 trees.