Robert W. Freckmann Herbarium

Brassicaceae: Mustard

Flowers with 4 petals, 6 stamens with 2 usually shorter. The long, narrow seed pod which angles upward develops from the single pistil. Plant with an acrid taste, watery juice. Leaves alternate, simple, lobed or pinnately divided.
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Flower Formula:  Sepals 4; Petals 4 Glossary

Genus 
(Click for Taxon List)
WI Taxa
(map link)
Photo Genus Traits Google Searches
Alliaria
garlic mustard
1 Photo of Alliaria White flowers, garlic-scented leaves, biennial; pod long, thin, 4-angled, erect Images   Information
Alyssum
madwort
1 Photo of Alyssum Yellow; pod rounded, flat; pointing upward Images   Information
Arabidopsis
rock-cress
1 Photo of Arabidopsis White; pod long, thin, pointing upward Images   Information
Arabis
rock-cress
12 Photo of Arabis White, pinkish; pod long, thin; flattened, round or 4-angled, pointing upward or downward Images   Information
Armoracia
cress, horseradish
2 Photo of Armoracia White; pod roundish to oval, not drooping; petals rounded at top Images   Information
Barbarea
winter-cress, yellow-rocket
2 Photo of Barbarea Yellow; pod long, thin, roundish in cross-section; leaves clasping, multi-lobed Images   Information
Berteroa
hoary-alyssum
1 Photo of Berteroa White, usually several, branched, rounded heads; petals deeply 2-lobed; pod hairy, oval, erect, close to stem Images   Information
Brassica
mustard
4 Photo of Brassica Yellow; pod not flat, long and thin, pointing upward; leaves often toothed, lobed, or pinnately divided Images   Information
Bunias
wartycabbage
1 Photo of Bunias Yellow; pod short, rounded with a point, erect; leaves toothed Images   Information
Cakile
sea-rocket
2 Photo of Cakile White to pink; bushy, branched from base; succulent; lake shores; pods like figure 8, erect Images   Information
Camelina
false flax
2 Photo of Camelina Yellow; stem leaves clasping; pods roundish, erect Images   Information
Capsella
shepherd's-purse
1 Photo of Capsella White, weedy, heart-shaped seed capsules; pods heart-shaped, flat, erect Images   Information
Cardamine
bitter-cress
10 Photo of Cardamine White to pink or purple, pods long, thin, upright Images   Information
Cardaria
hoary-cress, white-top
2 Photo of Cardaria White, pods short, rounded with a point, erect, evenly divided into 2 segments Images   Information
Conringia
hare-ear mustard
1 Photo of Conringia Yellow, leaves broadly oblong, clasping the stem, pods long, thin, 4-angled, erect Images   Information
Coronopus
swine-cress, wart-cress
1 Photo of Coronopus White to greenish, tiny flowers; pods round, tightly clustered, erect; foul odored Images   Information
Descurainia
tansy mustard
2 Photo of Descurainia Yellow; feathery leaves, yellow/greenish; pods bat-shaped or long and narrow, not drooping Images   Information
Diplotaxis
wall-rocket
1 Photo of Diplotaxis Yellow, low-growing; pods long, narrow, erect Images   Information
Draba
whitlow-grass
5 Photo of Draba White or yellow; pods longish, less than 5 times long as wide Images   Information
Erucastrum
dog-mustard
1 Photo of Erucastrum Yellow; pod long, thin, 4-angled, pointing upward ; leaves pinnately divided; stem leaves not clasping Images   Information
Erysimum
blister-cress, treacle mustard, wallflower
4 Photo of Erysimum Yellow; pod long, thin, 4-angled, pointing upward , with bracts; plant very hairy Images   Information
Hesperis
dame's rocket
1 Photo of Hesperis Pink, purple, white; 2'-3' tall; pods long, thin, pointing upward , leaves mostly undivided Images   Information
Iberis
candytuft
1 Photo of Iberis White rounded clumped garden plant Images   Information
Iodanthus
purple rocket
1 Photo of Iodanthus Purple to white to 3' tall; pods long, thin, pointing upward ; lower leaves often pinnately divided Images   Information
Lepidium
peppergrass, pepperwort, tongue-grass
9 Photo of Lepidium White, usually several, branched, domed heads; pods rounded, flat, often winged, erect Images   Information
Lesquerella
bladder-pod
1 Photo of Lesquerella Yellow flowers, silvery leaves; pods rounded, mostly pointing upward ; stem leaves not clasping Images   Information
Lobularia
sweet-alyssum
1 Photo of Lobularia White to pale purple; pods elliptic, flat Images   Information
Malcolmia
Virginia stock
1 Photo of Malcolmia Purple, blue or white garden escape Images   Information
Nasturtium
watercress
3 Photo of Nasturtium White flowers; aquatic, pungent-flavored leaves; pods long, thin Images   Information
Neslia
ball mustard
1 Photo of Neslia Yellow; pods roundish, erect, pitted; leaves clasping Images   Information
Raphanus
radish
2 Photo of Raphanus Yellow, white, pink, purple; coarse plant; stout root Images   Information
Rapistrum
bastard-cabbage, wild rape
1 Photo of Rapistrum Yellow; pods roundish, erect Images   Information
Rorippa
yellow-cress
8 Photo of Rorippa Yellow; pods longish, plumpish Images   Information
Sinapis
mustard
2 Photo of Sinapis Yellow, pods long, thin, sharp-pointed, erect Images   Information
Sisymbrium
hedge-mustard
3 Photo of Sisymbrium Yellow; pods long, thin, with no bracts; leaves clasping Images   Information
Thlaspi
penny-grass, pennycress
1 Photo of Thlaspi White; pods roundish, notched top, erect Images   Information


         
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