Table 1 Mean δ13C value of different plants’ nectar.

From: Tracing old carbon sources in Hungarian nectar samples using radiocarbon analysis

No.

Plant species

δ13C

SD

n

1

Sunflower (Helianthus annuus)

−28.402

1.2

5

2

Apple (Malus domestica)

−27.462

1.0

5

3

Rapeseed (Brassica napus)

−26.486

0.5

9

4

Black locust (Robinia pseudoacacia)

−26.305

1.1

23

5

Phacelia (Phacelia tanacetifolia)

−24.765

1.8

9

6

Linden (Tilia tomentosa)

−24.193

2.3

5