1.
Turritis glabra
Linnaeus, Sp. Pl. 2: 666. 1753.
Arabis glabra
(Linnaeus) Bernhardi;
A. glabra
var.
furcatipilis
M. Hopkins;
A. macrocarpa
(Nuttall) Torrey;
A. perfoliata
Lamarck;
A. pseudoturritis
Boissier & Heldreich;
Turritis glabra
var.
lilacina
O. E. Schulz;
T. macrocarpa
Nuttall;
T. pseudoturritis
(Boissier & Heldreich) Velenovsky
Plants
(3-)4-12(-15) dm, sparsely to densely pilose basally, glabrous distally, trichomes simple and short-stalked, forked.
Basal leaves:
blades spatulate, oblanceolate, or oblong, (4-)5-12(-15) cm × 10-30 mm, apex obtuse, surfaces usually pubescent, rarely glabrous.
Cauline leaves:
blade lanceolate, oblong-elliptic, or ovate, 2-9(-12) cm × (5-)10-25(-40) mm, apex acute.
Fruiting pedicels
appressed to rachis, (6-)7-16(-20) mm, glabrous.
Flowers:
sepals (2.5-)3-5 × 0.5-1.2 mm, glabrous; petals 5-8.5 × 1.3-1.7 mm; filaments slender, median pairs 3.5-6.5 mm, lateral pair 2.5-4.5 mm; anthers 0.7-1.5 mm.
Fruits
(3-)4-10(-12.5) cm × 0.7-1.5 mm; style 0.5-0.8(-1) mm.
Seeds
0.6-1.2 × 0.5-0.9 mm.
2
n
= 12, 16, 32.
Flowering Apr-Jul. Forest margins, fields, roadsides, stream banks, disturbed sites, mountain slopes, woods, meadows; 0-2800 m; Alta., B.C., Man., N.B., N.W.T., Ont., Que., Sask., Yukon; Alaska, Ariz., Calif., Colo., Conn., Idaho, Ill., Ind., Iowa, Maine, Mass., Mich., Minn., Mo., Mont., Nebr., Nev., N.H., N.Mex., N.Y., N.C., Ohio, Oreg., Pa., S.Dak., Tenn., Utah, Vt., Va., Wash., W.Va., Wis., Wyo.; Europe; sw Asia; n Africa; introduced in Australia.
