Weed
common pepperweed, tall pepperweed, bigseed pepperweed, babyseed pepperweed, miner's pepperweed
True seedTrue seed:
A mature fertilized ovule consisting of an embryo, with or without and external food reserve (e.g., endosperm) enclosed by the testa.
Compressed ovalOval:
Broadly elliptic.
Brown
Shiny and reticulatedReticulated:
Resembling a net or network, especially having veins, fibers, or lines crossing the surface.

Seed has longitudinal groove between lobes and is winged on curved margin.
Seeds compressed obovateObovate:
Inverted egg shaped with apical end the broadest.
with the radicleRadicle:
The rudimentary root of the embryo, developing into the primary root after emergence from the seed coat.
lobe margin more curved than the cotyledonCotyledon:
The modified storage leaf or pair of leaves of an embryo and seedling (see primary leaf).
lobe. The line between the two lobes is distinct. Surface is brown, somewhat shiny but slightly rough. The distal margin of the seed is winged.
State Noxious Weed: Arizona
Not included
Brassicaceae
Lepidium densiflorum Schrad.
Lepidium densiflorum Schrad. var. densiflorum
Lepidium densiflorum Schrad. var. elongatum (Rydb.) Thell.
Lepidium densiflorum Schrad. var. macrocarpum G. Mulligan
Lepidium densiflorum Schrad. var. pubecarpum (A. Nelson) Thell.
Lepidium densiflorum Schrad. var. ramosum (A. Nelson) Thell.
Lepidium densiflorum Schrad. var. typicum Thell.
Lepidium elongatum Rydb.
Lepidium neglectum Thell.
Lepidium pubecarpum A. Nelson
Lepidium ramosum A. Nelson
Lepidium texanum Buckley