Flora of North America species comparison

leafy or naked, erect, spreading, or decumbent, simple or branching.

basal and cauline;

blade glabrous; ultimate lobes elongate, obtuse.

basal and/or cauline, alternate to opposite or whorled, simple, without stipules, petiolate or sessile;

blade unlobed or with 1-3 odd-pinnate, subpalmate, or palmate orders of lobes.

cymose or 1-flowered;

buds erect, blunt or rounded short-acuminate, tip less than 1/4 length of bud.

axillary or terminal, unifloral or else multifloral and cymiform, racemose, umbelliform, corybiform, or paniculate, pedunculate or subsessile;

bracts usually present.

receptacle obconic, less than 2.5 cm broad, cup without spreading free rim;

calyx acuminate, glabrous;

petals yellow, sometimes with orange spot at base, 5-20 mm.

radially symmetric, pedicellate or sessile;

receptacle sometimes expanded and forming cup or ring beneath calyx (only in Eschscholzia, Meconella, and Platystemon);

perianth and androecium sometimes perigynous;

sepals caducous, 2 or 3, distinct or connate, usually obovate;

petals distinct, usually obovate, mostly 2 times number of sepals, sometimes more or absent;

stamens many or 4-15 (only in Meconella and Canbya);

anthers 2-locular;

pistil 1, 2-18[-22]-carpellate;

ovary 1-2-locular or incompletely to completely multilocular by placental intrusion;

placentas 2 or more, parietal;

style 1 or absent;

stigmas or stigma lobes 2-many.

capsular, dehiscence valvate, poricidal, or transverse, or carpels dissociating and breaking transversely into 1-seeded segments (only in Platystemon).

4-7 cm.

brown, ellipsoid, 1.4-1.6 mm, reticulate.

usually many, small, sometimes arillate or carunculate.

= 24.