2a. var. canadense
Pl.
99 a
Aerial stems 25–70 cm long. Leaves 1–6 mm wide. Some or all of the flowers
replaced by ovoid bulblets 4–10 mm long, these acute to long-beaked and often
germinating while still attached to the inflorescence. Flower stalks, when
present, usually somewhat thickened, 2–4 times as long as the perianth at
flowering. Fruits rarely produced. 2n=14, 21, 28 (2n=28 in
Missouri). May–July.
Common throughout Missouri (eastern U.S. and adjacent Canada west to Montana
and Texas). Openings of mesic bottomland to upland forests, stream banks,
bluffs, prairies, old fields, pastures, railroad embankments, roadsides, and
various other disturbed areas.
This is the commonest of the three varieties in Missouri and also the one most
adapted to disturbed habitats. The plants almost never produce fruits, thus
dispersal is entirely by the bulblets that replace some or all of the flowers.