N. ORD -PAPAVERACE^. 20
SEX. SYST.— l'i>LVAXl)kI.\ Mo.M i( .\M.\.
SYN.—ARGEMONE MEXICANA, LINN.
COM. NAMES.—PRICKLY POPPY, DEVIL'S FIG, MEXICAN POPPY, THORN
APPLE,t YELLOW THISTLE,! THORN POPPY; (MEX. i CHICALOTE • fFR ) ARGE'MONE; (GER.) STACHELMOHN.
.\ TLXCTURE OF THE WHOLE PLANT .ARGEMONE MEXICANA, L.
Description.—This annual weedy herb, grows to a height of from i to 3 feet.
Root long, subcylindrical ; sie?n erect, branching, prickly-bristled, and furnished, as
the rest of the plant, with a gamboge-yellow milky juice. Leaves sessile, broadly
lanceolate in general outline, sinuate lobed, spiny toothed, and blotched or striped
with white along the principal veins. Injioresecnee solitary in the axils of the upper
leaves, and terminal ; buds erect, pedunculate \ floiL^ers large, yellow, or rarely white.
Sepals 2 to 3, roundish, acuminate, often prickly, very fugacious. Petals 4 to 6,
i. €., twice as many as the sepals, roundish, more or less crumpled in the bud.
Stamens indefinitely numerous ; filaments filiform, greatly attenuated at the apex ;
anthers large, innate. Ovai'y stricdy i -celled; style almost none; stigmas 3 to 6,
stellate-radiate, purple, velvety on the receptive surface; lobes reflexed. Fruit an
oblong-ovate, prickly pod, opening by 3 to 6 valves at the apex, leaving a skeleton
of from 3 to 6 filiform placentce in the shape of the original pod ; seeds globular,
crested, and pitted.
Papaveraceae.—This principally European family of herbs, noted for their
milky, and generally colored, narcotic or acrid juice, is represented in North
America by 15 genera, 23 species, and 7 recognized varieties. The order is further
characterized as follows: Leaves alternate, exstipulate. Peduncles i -flowered ;
floiueis regular, the parts in twos or muliples of two. Sepals 2, very rarely 3,
fugacious Petals 4 to 12, early deciduous, rarely absent, imbricated in the bud.