What is the meaning of Spikenard?

A perfumed ointment, extracted from the plant Nardostachys jatamansi that belongs to the Valerian family and grows in the Himalayas.

The plant Nardostachys jatamansi (syn. Nardostachys grandiflora).

Lavandula stoechas, another species used in antiquity to produce an aromatic oil.

Any plant of the genus Aralia of the Araliaceae family.

False spikenard (Maianthemum racemosum, syn. Smilacina racemosa)

Ploughman's spikenard (Inula conyza, now Pentanema conyzae).

Wild spikenard (Asarum europaeum).

Nard (Nardostachys jatamansi) or a similar plant.

Source: wiktionary.org