Checklist » Asparagaceae » Ornithogalum umbellatum
Last updated 8/6/2012 by David Giblin.
Ornithogalum umbellatum L.[FNA26, HC2]
nap-at-noon, sleepydick

Publication: Sp. Pl. 1: 307. 1753.

Origin: Introduced from Eurasia

selected vouchers: WTU

Notes: Not in H&C; need verification that this taxon is naturalized in WA; reported by FNA, Richard Old, and Kz99.

FNA26: "Planted as a garden ornamental, Ornithogalum umbellatum produces many offsetting bulblets that are transported in soil and can become rampant weeds. Adding to the vegetative vigor of this species may be its aneuploid-polyploid karyology (T. W. J. Gadella and L. van Raamsdonk 1981; L. van Raamsdonk 1984). The flowers are noteworthy for their regularity in opening just before noon and closing again before sunset.

Two digitalis-like glycosides, convallatoxin and convalloside, poisonous to humans and livestock, are found throughout the plant, but are concentrated in the bulbs and the flowers (W. H. Blackwell 1990; K. F. Lampe and M. A. McCann 1985; D. G. Spoerke Jr. and S. C. Smolinske 1990)."

References: (none)

Synonyms & Misapplied Names:
(none)