Lycium
andersonii

Lycium
barbarum

Lycium
cooperi

(1.5)2–2.5(3.5) mm
round, elliptic
0.2–0.7 mm
hilum often opens
towards a face

(1.8)2–2.25(3) mm
round, elliptic
0.1–0.25 mm
hilum often opens
towards a face

1.8–3 mm
round, elliptic
0.15–0.3 mm
hilum sometimes opens
towards a face

Character

Physalis
acutifolia

Physalis
lancifolia

Physalis
philadelphica

seed length,
hilum shape,
hilum length

1.8–2.4 mm
linear
0.4–0.5 mm

1.5–2 mm
linear, elliptic, ovate
0.2–0.5 mm

1.7–2.5(3) mm
elliptic, lanceolate
(0.5)0.8–1.2 mm