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Habit Perennials [annuals]; eglandular.
Cauline leaves

petiolate or sessile;

blade base not auriculate, (cuneate or attenuate), margins entire.

Trichomes

simple or forked, (minute).

Racemes

bracteate, sometimes elongated in fruit.

Flowers

actinomorphic;

sepals erect or ascending, lateral pair seldom saccate basally;

petals white or lavender [pink, blue, or purple], claw present [absent], distinct;

filaments unappendaged, not winged;

pollen 3-colpate.

Fruits

silicles or siliques, dehiscent, unsegmented, latiseptate [terete];

ovules 6–8[–32] per ovary;

style obsolete or distinct;

stigma entire.

Seeds

biseriate [uniseriate];

cotyledons incumbent.

Brassicaceae tribe Aphragmeae

Distribution
nw North America; Asia (Himalaya, Russian Far East)
Discussion

Genus 1, species 11 (1 in the flora).

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source FNA vol. 7, p. 255.
Parent taxa Brassicaceae
Subordinate taxa
Name authority D. A. German & Al-Shehbaz: Harvard Pap. Bot. 13: 168. (2008)
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