Flora of North America species comparison

erect or prostrate.

petiole 5–10 mm;

blade glaucous, dull, orbiculate to ovate, 2–3 × 1.5–2.5 cm, base rounded, truncate, or ± lobed, margins entire, plane, surfaces smooth, gray-canescent or densely white-tomentose, glabrescent.

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, 2–5-branched;

immature inflorescence pendent, branches spreading or ascending, axis 1–2 cm, 1+ mm diam., sparsely short-hairy, viscid glandular-hairy;

bracts appressed, scalelike, linear-lanceolate, 3–5 mm, apex acute, surfaces canescent.

terminal, panicles or racemes;

perulae absent;

bracts much shorter than sepals;

bracteoles 2 or absent (Arctostaphylos, Arctous).

6–9 mm, finely glandular-hairy.

corolla white, conic to urceolate;

ovary densely white-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, 7–9 mm diam., hairy or glabrous.

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.