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Naturalized flora of The Morton Arboretum
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Teesdalia coronopifolia
(Bergeret) Thell.
Family:
Brassicaceae
Lesser Shepherd's-Cress
FNA
Resources
Ihsan A. Al-Shehbaz in Flora of North America (vol. 7)
Stems
(0.6-)1-2(-2.8) dm.
Basal leaves:
petiole 0.2-2 cm; blade lanceolate in outline, 0.5-3(-4) cm × 0.5-2.5 mm, margins usually lyrate-pinnatifid to pinnatisect, rarely dentate or entire; lateral lobes acute.
Cauline leaves
0-3; blade linear.
Fruiting pedicels
3-6 mm.
Flowers
actinomorphic
;
sepals 0.2-0.6 × 0.2-0.4 mm; petals oblong, 0.5-1.5 × 0.3-0.6 mm; stamens 4, equal; filaments 0.5-1 mm (basal appendage white, ca. 1/2 its length); anthers 0.1-0.2 mm.
Fruits
3-3.5 × 3-5 mm; style 0 m.
Seeds
0.8-1.2 × 0.7-1 mm.
2
n
= 36.
Flowering Feb-Apr. Roadsides, abandoned fields; 50-500 m; introduced; Calif.; s Europe; n Africa; introduced also in n, c Europe.
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