_Herbs_ (when in northern regions), _with cruciform flowers, but 6 or more not tetradynamous stamens, a 1-celled pod with 2 parietal placentæ, and kidney-shaped seeds._--Pod as in Cruciferæ, but with no partition; seeds similar, but the embryo coiled rather than folded. Leaves alternate, mostly palmately compound.--Often with the acrid or pungent qualities of Cruciferæ (as in _capers_, the flower-buds of Cápparis spinòsa). 1. Polanisia. Stamens 8 or more. Pod many-seeded, not or scarcely stipitate. 2. Cleome. Stamens 6. Pod linear, many-seeded, long stipitate. 3. Cleomella. Stamens 6. Pod very short, rhomboidal, few-seeded, long-stipitate. 1. POLANÍSIA, Raf. Petals with claws, notched at the apex. Stamens 8--32, unequal. Receptacle not elongated, bearing a gland behind the base of the ovary. Pod linear or oblong, veiny, turgid, many-seeded.--Fetid annuals, with glandular or clammy hairs. Flowers in leafy racemes. (Name from πολύς, _many_, and ἄνισος, _unequal_, points in which the genus differs in its stamens from Cleome.) 1. P. gravèolens, Raf. Leaves with 3 oblong leaflets; stamens about 11, scarcely exceeding the petals; style short; pod slightly stipitate.--Gravelly shores, from Conn. and W. Vt. to Minn. and Kan. June--Aug.--Flowers small (2--3´´ long); calyx and filaments purplish; petals yellowish-white. 2. P. trachyspérma, Torr. & Gray. Flowers larger (4--5´´ long), the stamens (12--16) long-exserted; style 2--3´´ long; pod sessile; seeds usually rough.--Iowa to Kan. and westward. 2. CLEÒME, L. Petals entire, with claws. Stamens 6. Receptacle somewhat produced between the petals and stamens, and bearing a gland behind the stipitate ovary. Pod linear to oblong, many-seeded.--Our species a glabrous annual, with 3-foliolate leaves, leafy-bracteate racemes, and rose-colored or white flowers. (Name of uncertain derivation, early applied to some mustard-like plant.) 1. C. integrifòlia, Torr. & Gray. Calyx 4-cleft; petals with very short claws, leaflets narrowly lanceolate to oblong; bracts simple; pod oblong to linear, 1--2´ long, the stipe as long as the pedicel.--Minn. to Kan. and westward; N. Ill. Flowers showy; 2--3° high. (Addendum) C. SPINÒSA, L. Viscid-pubescent, 3--4° high; a pair of short stipular spines under the petiole of each leaf; leaflets 5--7, oblong-lanceolate; flowers large, rose-purple to white; stamens 2--3´ long; stipe of the linear pod about 2´ long. (C. pungens, _Willd._)--An escape from cultivation, near Mt. Carmel, Ill. (_Schneck_), and in waste grounds southward; also on ballast. (Int. from Trop. Amer.) 3. CLEOMÉLLA, DC. Differing from Cleome in the clawless petals, glandless receptacle, and the short few-seeded pod with more or less distended or even conical valves. Flowers small, yellow. (Name a diminutive of _Cleome_.)