This section is from the book "An Illustrated Flora Of The Northern United States, Canada And The British Possessions Vol1", by Nathaniel Lord Britton, Addison Brown. Also available from Amazon: An Illustrated Flora of the Northern United States, Canada and the British Possessions. 3 Volume Set..
Bulbs ovoid. Leaves few, with narrowly linear blades 6-12' long; scapes 1°-2° tall, 2-edged at least at maturity; umbel nodding, 12-40-fiowered; pedicels 7"-13" long, filiform, becoming thicker in age; perianth purple, mostly urn-shaped, 2"-2i" high, the segments oval, the outer obtuse or notched, shorter than the inner; capsule 2"-2i" high, with 2 large processes on each valve.
Rocky soil and on cliffs, Virginia to Tennessee and Georgia. July-Aug.
Allium stellatum Ker, Bot. Mag. pl. 1576. 1813.
Bulbs solitary or several together, narrowly ovoid, 1'-2' long, their coats membranous. Scape slender, 8'-18' tall, somewhat ridged above; leaves linear, 3/4"-1 1/4" wide, nearly flat; umbel several-many-flowered, erect, subtended by 2 lanceolate or ovate acuminate bracts; pedicels filiform, 6"-10" long; flowers rose-color; perianth-segments ovate-oblong, acute, 2"-3" long, equalling or rather shorter than the stamens; filaments filiform, slightly widened at the base; capsule shorter than the perianth, 3-lobed, about 6-seeded, each valve bearing 2 erect processes or crests below the apex.
On rocky banks, Illinois and Minnesota to Missouri, Nebraska and Kansas. July-Aug.
Allium carinatum L. Sp. PI. 297. 1753-
Similar to Allium vineale. Bulb ovoid, its coats membranous. Stem terete, leafy up to about the middle, 8'-2o' tall; leaves linear, channeled below, flat toward the apex, prominently 3-5-nerved; bracts of the umbel 2, narrowly linear, one much longer than the other; umbel erect, bearing either bulbs or capsules; pedicels filiform, 10"-20' long; flowers about 3" long, violet to rose; filaments not toothed.
Roadsides, New Jersey and southeastern Pennsylvania. Adventive from Europe.
Allium vineale L. Sp. PI. 299. 1753.
Bulb ovoid, 1' high or less, its coats membranous. Stem 1°-3° tall, bearing 2-4 narrowly linear terete hollow somewhat channeled leaves below the middle at flowering time, the early basal leaves similar, numerous, 4'-10' long; bracts of the umbel 2, lanceolate, acuminate, deciduous; umbel few-many-flowered, erect, the flowers often wholly or in part replaced by small ovoid bulblets which are tipped with a long capillary appendage; pedicels 3"-12" long, filiform, the lower spreading or drooping; flowers green or purple, about 2" long; perianth-segments ovate-lanceolate, stamens included or slightly ex-serted; filaments flattened, broad, the 3 interior ones bearing a tooth on each side just below the anther; capsule 3-lobed, shorter than the perianth.
In fields and meadows, Rhode Island to Virginia, Tennessee and Missouri. Naturalized from Europe. A troublesome weed in the Middle States, infesting pastures, and tainting the flavor of spring butter. June-July.