Flora of North America species comparison

erect or prostrate.

petiole to 2 mm, (hairy);

blade glaucous-green, dull, ovate or oblong-ovate, 2.5–4.5 × 2–3 cm, base auriculate-clasping, margins entire, plane, surfaces smooth, glabrous.

persistent (deciduous in Arctous), usually alternate, sometimes opposite or whorled (Ornithostaphylos), rarely opposite (Xylococcus);

petiole usually present, sometimes absent (Arctostaphylos);

blade plane, abaxial groove absent.

panicles, 3–5-branched;

immature inflorescence pendent, (branches compact, framed by bracts), axis 0.5–1 cm, 1+ mm diam., short-hairy to hispid-hairy, usually eglandular;

bracts not appressed, leaflike, widely lanceolate, 5–9 mm, apex acute, surfaces finely glandular-hairy.

terminal, panicles or racemes;

perulae absent;

bracts much shorter than sepals;

bracteoles 2 or absent (Arctostaphylos, Arctous).

8–12 mm, finely glandular-hairy.

corolla white, conic to urceolate;

ovary finely glandular-hairy.

pendulous;

sepals (4-)5;

petals (4-)5, connate, corolla deciduous, usually urceolate, sometimes cylindric, conic, or globose, lobes much shorter than tube;

intrastaminal nectary disc present;

stamens (8-)10;

anthers dehiscent by slits or pores;

ovary 2-10-locular;

placentation axile;

style straight.

depressed-globose, 8–10 mm diam., glandular-hairy, (viscid).

drupaceous (baccate in Arbutus), (pulp mealy or juicy), indehiscent;

pyrenes 1-5, often connate into stonelike endocarp.

1-10, usually distinct, sometimes connate, globose (sometimes 3-sided), not winged.

distinct.

= 26.