Galanthus leaves (vernation). In the era of molecular phylogenetics this characteristic has been shown to be unreliable and now seven moleculary defined clades are recognised corresponding to the biogeographical distribution of species. New species continue to be discovered. Most species flower in winter, before the vernal equinox (20 or 21 March in the Northern Hemisphere), but some flower in early spring and late autumn. Snowdrops are sometimes confused with the two related genera within the tribe Galantheae, snowflakes "Leucojum" and "Acis". All species of "Galanthus" are perennial petaloid herbaceous bulbous (growing from bulbs) monocot plants. The genus is characterised by the
Luzula nivalis ("to shine, sparkle") or the Latin "luzulae" or "luxulae", from "lux" ("light"), inspired by the way the plant's hairs sparkle when wet with dew. "Nivalis" is Latin for snowy, snow-covered or snow-like. The exact taxonomy of "Luzula nivalis" is a little confusing due to confusions over the naming of the taxon; the name "L. arctica" has frequently (though less occasionally in recent years) been applied this taxon, or it has been regarded as a separate species altogether. Elven et al. (2003) stated that "a number of authors (Hultén 1968, Böcher et al. 1968, Porsild and Cody 1980, Novikov 1990) have