Indicates the row number of the observation in the complete database.

Taxonomic group: Angiosperm, Gymnosperm, Pteridophyte, Lycophyte

Family of plant as reported in the paper (Capital first letter).

Genus of plant as reported in the paper (capital first letter).

Specific epithet as reported in the paper (lower case first letter).

Subspecies, variety, filial generation, hybrid id, cultivar, or other distinguishing characterics of the genetic orgin of the plants.

Cleaned Family based on APGIII

Cleaned Genus based on APGIII

Cleaned Species based on APGIII

Cleaned binomial based on APGIII

Developmental stage as described by the data’s reference paper. Se = seedling, Sa = sapling, A = adult R= resprout

Type of plant growthform. T = tree, S = shrub, L = liana, G = grass, F = forb, C = cactus

Setting of study: N = natural, G = greenhouse, C = common garden, E = experiment

Class of mega-, meso-, micro-, or nanophanerophyte. 1 = mega, 2 = meso (<20m), 3 = micro (<10m), 4 = nanophanerophyte (<3m)

Maximum height for this species when naturally occuring (in meters).

Actual height of plants in study (in meters).

Diameter at breast height, typically 1.3-1.5m. (Pérez-Harguindeguy et al. 2013)

Collection year.

Collection month.

Collection day.

Hemisphere of collection, N = northern, S = southern.

The xylem tension at which 12% of the maximum hydraulic conductivity is lost, also referred to as the air-entry point. $P_{12}$ is defined in (Domec and Gartner, 2001) as $P_{12}=\frac{2}{slope+P_{50}}$.

The xylem tension at which 88% of the maximum hydraulic conductivity is lost

Slope of vulnerability curve (% / MPa). $Slope=\frac{88-12}{P_{88}-P_{12}}$ (Domec and Gartner, 2001)

E = exponential (blue), S = sigmoidal (red), O = other

W = Weibull, P = polynomial, PW = Pammenter & Van der Willigen, L = linear

DH = dehydration (Sperry and Tyree, 1988; Tyree et al., 1992; Bréda et al., 1993)

CE = centrifuge (Pockman et al., 1995; Alder et al., 1997; Torres-Ruiz et al., 1995)

CA = cavitron ( Cochard et al., 2005; Torres-Ruiz et al., 2017)

AD = air-injection double end (Cochard et al., 1992; Salleo et al., 1992)

AS = air-injection single end (Cochard et al., 1992)

AE = acoustic emissions(Milburn, 1966; Tyree et al., 1984; Nolf et al., 2015)

OV = optical vulnerability (Brodribb et al., 2017; OpenSourceOV)

MicroCT = microCT (Choat et al., 2016; Choat et al., 2010)

Pn = pneumatic method/Pneumatron (Pereira et al., 2019; Pereira et al., 2016; Bittencourt et al., 2018)

MRI = magnetic resonance imaging (Hochberg et al., 2015)

$\frac{kg}{mMPas}$ stem specific conductivity = xylem conductivity per unit of cross-sectional sapwood area

(kg m-1 MPa-1 s-1) leaf specific conductivity = xylem conductivity per total area of leaves distal to the measured segment

ψp min predawn (MPa) Minimum predawn xylem pressure potential.

ψp min midday (MPa) Minimum midday xylem pressure potential.

ratio of conducting xylem area per supported leaf area

Sapwood water storage capacity (kg m-3 MPa-1)

only for angiosperms

vessel length method (silicon injection; air-injection; other)

(cm) only for angiosperms

(μm) mean tangential vessel diameter for angiosperms; tangential tracheid diameter for gymnosperms

dh mean hydraulic diameter (μm)

Number of vessels (angiosperms) or tracheids (gymnosperms) per mm

Total number of vessels in a minimum of 25 vessel groups divided by the number of groups counted

Fraction of the vessel surface area contacting another vessel (%) = perimeter of intervessel wall divided by total vessel wall perimeter

(µm2) Average pit membrane surface area - earlywood only

(μm) horizontal diameter of a bordered pit at the broadest point (= pit membrane diameter) - earlywood only

(μm) horizontal diameter of the (outer) pit aperture at the broadest point - earlywood only

Outer pit aperture diameter / interconduit pit size

(nm) intervessel pit membrane thickness

(μm) horizontal diameter of the torus at its broadest point

(diameter of the torus - diameter of the aperture)/diameter of the torus

presence of small protuberances from the secondary cell wall associated with bordered pits of angiosperms

The fraction of the conduit wall occupied by interconduit pits, i.e. pit area per total conduit wall area

total interconduit pit (membrane) surface area [Ap = Fp x Avessel/tracheid]

diffuse-porosity; ring-porosity; semi-ring-porosity

Simple; scalariform; mixed (i.e. simple and scalariform)

tracheids (vasicentric, vascular or true tracheids), libriform fibres, fibres

tracheids surrounding vessels (present or absent)

Flexual stiffness (EI)

Modulus of elasticity (MOE)

double intervessel or intertracheid cell wall thickness (µm)

(t/b)2; t = double intervessel or intertracheid cell wall thickness (µm); b = vessel or tracheid lumen diameter (excluding the cell wall)

oven dry mass/fresh volume [please make a note in the notes column when green mass/volume was measured]

sum of adaxial and abaxial stomatal densities (number of stomata per cm2)

[S / (E+S)] * 100, where S is the number of stomata per unit area, and E is the number of epidermal cells per same unit area

Maximum stomatal conductance

Minimum stomatal conductance

Cuticular conductance

E = evergreen, W = winter deciduous, D = drought deciduous

Photosynthetic capacity (micronol/m2/s)

big delta 13C (per mill) for

Maximum leaf hydraulic conductance measured on a leaf (e.g., with evaporative flux method), and units:

$\frac{mmol}{m^{2}sMPa}$

Country

Latitude

Longitude

Provenance Latitude

Provenance Longitude

Altitude (m)

Altitude provenance (m)

(C°) for study area or GBIF queries for species names

Evapotranspiration

TRR = tropical rainforest, TRS = tropical seasonal forest (savanna), TMR = temperate rain forest, TMS = temperate seasonal forest, WDS = woodland/shrubland, DES = deserts, BOT = boreal-tundra

Name of the participant who integrated the data

Name of the participant who double-checked the data.

Any remark made by participants regarding the data.