Table 1 Physical properties of seeds from dryland species, and their estimated terminal velocities in water

Prosopsis flexuosa

24¹

6.0–6.6 × 1.9–2.2²

906

8 (upwards)

Larrea sp.

2.3¹

6.0 mm spheroids³

10.6

77 (upwards)

Atriplex lampa

0.62¹

6-12 × 5 – 12⁴

1.38

140 (upwards)

Trichloris crinita

0.18¹

4 × 0.5⁵

180

28 (upwards)

Sporobolus cryptandrus

0.07⁶

0.68 × 0.40⁶

643

0.4 (upwards)

Chenopodium papulosum

0.25⁶

0.94 × 0.82⁶

396

1.2 (upwards)

Pappophorum spp. a

0.35⁶

1.32 × 0.47⁶

1200

0.76 (downwards)

Digitaria californica

0.40⁶

1.67 × 0.98⁶

250

4.5 (upwards)

Parthenium hysterophorus

0.42⁶

2.45 × 1.18⁶

123

11 (upwards)

Phacelia artemisioides

0.50⁶

1.46 × 1.02⁶

330

3.1 (upwards)

Setaria leucopila

0.75⁶

1.18 × 1.04⁶

588

1.2 (upwards)

Plantago patagonica

0.80⁶

2.27 × 0.98⁶

367

7.1 (upwards)

Pinus pinea

443⁷

Vol: 1067 mm^{3 7}

415

Erica multiflora

0.07⁷

Vol: 0.16 mm^{3 7}

438

Average of 83 Spanish desert seeds

35.28⁷

Vol: 67.91 mm^{3 7}

520