Flora of North America species comparison

blade broadly elliptic or somewhat orbiculate to obovate, asymmetric, 2.5-13.5 × 4.2-12.5 cm, base rounded to truncate, rarely cuneate, often oblique, proximal margins entire, distal margins coarsely sinuate to repand, rarely entire, apex short-acuminate to rounded and mucronate;

surfaces abaxially glaucous or green, adaxially green, both surfaces stellate-pubescent or nearly glabrous;

veins (4-)5-6(-7) pairs.

blade unlobed or deeply (3-)5-7-lobed, pinnately or palmately veined.

nearly sessile to short-pedunculate, 3-6 × 2-3 cm.

axillary or terminal, capitate or spicate to ± racemose, bracteate.

calyx lobes persistent in fruit;

stamens (10-)22-34;

filaments 6-17 mm.

bisexual or unisexual;

perianth epigynous, 1-2-seriate, 4-5-merous, often reduced or absent, hypanthium present;

calyx persistent, 4-5(-7)-lobed, or absent;

petals distinct or absent;

stamens 4-34;

anthers basifixed, latrorse, 2-locular, longitudinally dehiscent by simple slit or by 1-2 vertical valves;

pistil 1, 2-carpellate;

ovary half-inferior, 2-locular;

placentation axile;

ovules 1(-2) in each locule and apical, or many, anatropous, pendent;

styles and stigmas persistent, 2 each, erect or contorted and recurved.

capsular, with leathery exocarp and bony endocarp, loculicidal and 2-seeded or septicidal with most of many seeds per locule aborted; 1-2 viable seeds per locule (Liquidambar).

5.5-13 mm.

5-6(-8) mm, apex pointed.

fusiform, bony, lustrous, hilum apical, light colored, or seeds winged, hilum lateral (Liquidambar).

spikes 3.5-7 × 1.5-2.5 cm.

buds naked or scaly.

= 72.