Globepodded Hoarycress, Globe-podded Hoary Cress, Whitetop: Lepidium appelianum (Synonyms: Cardaria pubescens, Cardaria pubescens var. elongata, Hymenophysa pubescens)
Field Cress, Field Peppergrass, Field Pepperweed, Field Pepperwort, Pepperwort: Lepidium campestre (Synonyms: Neolepia campestre, Thlaspi campestre) -
Chalapa Hoarycress, Lens-podded Hoarycress, Asian White-top: Lepidium chalepense (Synonyms: Cardaria chalapensis, Cardaria draba ssp. chalapensis, Cardaria draba var. repens, Lepidium chalapensis, Lepidium draba ssp. chalapensis, Lepidium repens) -
Babyseed Pepperweed, Common Pepperweed, Miner's Pepperweed, Prairie Peppergrass: Lepdium densiflorum var. densiflorum (Synonyms: Lepdium densiflorum var. bourgeaunum, Lepdium densiflorum var. densiflorum, Lepdium densiflorum var. elongatum, Lepdium densiflorum var. macrocarpum, Lepdium densiflorum var. densiflorum, Lepidium densiflorum var. pubecarpum, Lepidium pubecarpum, Lepidium densiflorum var. bourgeaunum, Lepidium densiflorum var. typicum, Lepidium neglectum, Lepidium texanum) -
Alkali Peppergrass, Alkali Pepperweed, Veiny Peppergrass: Lepidium dictyotum (Synonym: Lepidium dictyotum var. dictyotum) -
Heart-podded Hoarycress, Hoary Cress, Hoary Pepperwor, White Top: Lepidium draba (Synonyms: Cardaria draba, Cardaria draba ssp. draba, Cardaria draba var. draba, Lepidium draba ssp. draba) -
Purple-anther Pepperweed, Smith's Pepperweed, Smith's Pepperwort: Lepidium heterophyllum
Broadleaved Pepperweed, Broad-leaved Pepperweed, Broad-leaved Pepperwort, Dittander, Perennial Pepperweed, Perennial Pepperwort, Pepperwort: Lepidium latifolium (Synonym: Cardaria latifolia) -
Shining Pepperweed: Lepidium nitidum (Synonyms: Lepidium leiocarpum, Lepidium nitidum var. howellii, Lepidium nitidum var. insigne, Lepidium nitidum var. nitidum, Lepidium nitidum var. oreganum) -
Clasping Peppergrass, Clasping Pepperweed, Clasping Pepperwort, Round-leaved Peppergrass, Yellow-flowered Peppergrass: Lepidium perfoliatum (Synonyms: Nasturtium perfoliatum) -
Branched Peppergrass, Dull Peppergrass: Lepidium ramosissimum (Synonyms: Lepidium ramosissimum var. bourgeauanum, Lepidium ramosissimum var. ramosissimum)
Garden Cress, Garden Cress Pepperwort, Garden Pepperwort, Pepper Cress: Lepidium sativum -
Coastal Peppergrass, Hairy Peppergrass, Idaho Peppergrass, Menzie's Peppergrass, Menzies' Pepperweed, Poor Man's Pepper, Tall Peppergrass, Tall Western Peppergrass, Virginia Pepperweed: Lepidium virginicum var. menziesii (Synonyms: Lepidium menziesii, Lepidium virginicum ssp. menziesii) - An observation from near the Columbia River in Sherman County east of the Deschutes River.