Table 5.

Studied organs and features

Organ	Feature	Studies	$\sum$
Leaf	Shape	[1, 6, 11, 15, 19, 22, 24, 26, 28, 38–42, 45, 46, 54, 56, 58, 59, 62, 72, 76, 77, 81, 82, 89, 92, 94, 96–100, 102, 103, 106, 110, 111, 119–121, 130, 134, 135, 137, 138, 141, 145–147, 155–159]	56
	Texture	[7, 8, 17, 25, 32, 36, 37, 115, 118, 122, 132, 150]	12
	Margin	[31, 66]	2
	Vein	[53, 78–80]	4
	Shape + texture	[10, 23, 68, 91, 114, 136, 140, 143, 154]	9
	Shape + color	[16, 27, 87, 116]	4
	Shape + margin	[18, 20, 21, 73, 85, 93]	6
	Shape + vein	[4, 5, 14, 65, 67, 101, 107, 108, 139, 144]	10
	Shape + color + texture	[74, 148]	2
	Shape + color + texture + vein	[43, 48]	2
Flower	Shape	[64, 128, 129]	3
	Shape + color	[3, 30, 57, 60, 117]	5
	Shape + texture	[149]	1
	Shape + texture + color	[29, 68, 104, 105, 112]	5
Bark + fruit	Shape + texture	[68]	1
Full plant	Shape + texture + color	[68]	1