I was looking up a plant word, and came across the word nectary, which I thought would be an adjective, but no:
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Nectary \Nec"ta*ry\, n.; pl. {Nectaries}. [From {Nectar}: cf. F. nectaire.] (Bot.) That part of a blossom which secretes nectar, usually the base of the corolla or petals; also, the spur of such flowers as the larkspur and columbine, whether nectariferous or not. See the Illustration of {Nasturtium}.
From WordNet (r) 1.6 (wn)
nectary n : a gland (often a protuberance or depression) that secretes nectar [syn: {honey gland}]

Thought I'd add it on to here, as it wasn't worth starting a new thread for.