BRASSICACEAE 3 



C16ome Cleome, Rock) Mountain Bee-plant 



1 1 if uncertain origin and meaning) 

 iflets; flower pink; ovarj stalked ('. terruldta 



Polanisia — Polanisia 

 poiys, many, aniios. unequal; Improperly formed, but referring to the unequal stamens) 

 Leaves of .1 leaflets; Mowers yellowish; ovary Dearly sessile P. graviolent 



Brassicaceae — Mustard Family 



Herbs; sepals 4, petals 4, stamens 6 or 4, 2 shorter, ovary 2-celled, fruit a sili<]ue ; flower 

 syncarpoos, apopetalons, hypogynous, usually regular. 



1. Pod globose, rounded or triangular 



a. Tod globose Alyssum 



b. Pod rounil and Bat 



(1) Flowers tiny, whitish or greenish Lepidium 



Flowers larger, white or purple, two petals larger Iberis 



c. Pod triangular Bursa 



2. Pod oblong to linear 



a. Pod remaining closed when ripe Raphanus 



b. Pod opening by two valves when ripe 



(1) Pod beaked at the tip Brassica 



(2) Pod not beaked at the tip 



\. Seeds in one row in each cell; flowers usually purple to red Malthiola 



y. Seeds in two rows in each cell ; flowers yellow or white 



(x) Pods awl-shaped Sisymbrium 



(y) Pods oblong to almost round Roripa 



Alyssum — Sweet Alyssum 



(Gr. alyssos, curing madness, probably from supposed medical qualities) 

 Leaves lanceolate or linear; (lowers white, fragrant A. maritimum 



Lepidium — Pepper-grass 



(Gr. lepidion, little scale, referring to the pod) 



1. Flowers greenish; petals lacking L. apelalum 



2. Flowers white; petals present L. virginicum 



Iberis — Candytuft 



(From Iber, the early name of Spain) 

 Leaves lanceolate to linear; flowers purplish /. umbelldta 



Bursa — Shepherd's Purse 



ir.at. bursa, purse, referring to the pod) 

 Leaves deeply cut, often entire on the stem; flowers white B. bursa-pasloris 



Brassica — Cabbage, Mustard 



(Lat. brassica, cabbage) 



1. Cultivated 



a. Leases smooth, glaucous; flowers pale yellow B. olerdcea: cabbage 



b. Leaves hairy, green ; flowers brighter yellow B. camptstris: turnip 



2. Weeds 



a. Pod 2 J, i -5 cm. long, beak 6-15 mm. long B. juncea: mustard 



b. cm. long, beak 2 10 mm. long 



(1) Beak 2-4 mm. long B. nigra: black m. 



X 8-10 mm. long B. .: charlock 



Raphanus — Radish 



(Gr. rha, quick, phanos. appearing, inferring to the germinationl 



1. Cultivated; (lowers pink to white, pods 2-3-seeded riius 



2. Weed: (lowers yellow, then white: • R. raphanistrum 



