A key for the weedy Asparagus species

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1.	'Leaves' very narrow up to 0.5 mm wide and flat to circular in section. Berries translucent
	white, blue-grey or black when ripe.
	2. Stems not spiny. Berries translucent white to blue-grey and egg-shaped.
		'Leaves' in groups of 3 per axil. Tubers present..................................................................	A. declinatus (Bridal Veil)
	2. Stems with recurved spines. 'Leaves' in groups of 8-15 per axil.
		Berries black and globular. Tubers absent..........................................................................	A. plumosus (Ferny Asparagus)

1. 'Leaves' broader, 0.5-30 mm wide. Berries orange to red or purple when ripe.

	3. 'Leaves' usually single along the stem, egg-shaped to heart-shaped and 4-30 mm wide...	A. asparagoides (Bridal Creeper)
	3. 'Leaves' always clustered, 0.5-3 mm wide, usually 1 longer than the others.
		4. Stems spiny. 'Leaves' 2-3 mm wide. Flowers bisexual.............................................A. aethiopicus (South African Asparagus Fern)
		4. Stems without spines. 'Leaves' 0.5-1.5 mm wide. Flowers unisexual.............................	A. scandens (Climbing Asparagus Fern)