Tree very large and vigorous, round-topped, open, hardy, very productive; branches smooth, becoming rough near the trunk, ash-gray, with lenticels of medium size and number; branchlets somewhat slender, short, with long internodes, greenish-red changing to dull reddish-brown, marked by scarf-skin, dull, glabrous, with few, inconspicuous, small lenticels; leaf-buds above medium in size and length, pointed, free; leaf-scars prominent. Leaves folded backward, oval or obovate, one and five-eighths inches wide, three and one-quarter inches long, leathery; upper surface dark green, sparingly hairy, with a shallow groove on the midrib; lower surface yellowish-green, pubescent; apex abruptly pointed or acute, base acute, margin crenate, bearing small, dark glands; petiole one-half inch long, pubescent, with a little red, glandless or with one or two small, globose, yellowish glands. Blooming season intermediate in time, short; flowers appearing with the leaves, one and one-eighth inches across, white, creamy at the apex of the petals in the newly opened flowers; borne on lateral buds and spurs, singly or in pairs; pedicels one-half inch long, thick, pubescent, greenish; calyx-tube green, campanulate, pubescent at the base; calyx-lobes broad, obtuse, pubescent on both surfaces, glandular-ciliate, somewhat reflexed; petals roundish-ovate, erose; anthers yellow; filaments about one-quarter inch long; pistil glabrous except at the base, slightly longer than the stamens; stigma large. Fruit mid-season; one and five-eighths inches by one and one-half inches in size, irregular roundish-truncate, halves unequal; cavity shallow, narrow, abrupt; suture usually shallow, prominent; apex flattened or depressed; color dull yellow with greenish streaks, sometimes with pinkish blush about the cavity, mottled, overspread with thin bloom; dots numerous, small, inconspicuous; stem thick, three-quarters inch long, pubescent, adhering well to the fruit; skin thin, tough, sour, separating readily; flesh greenish-yellow, juicy, firm but tender, sweet, aromatic; very good; stone nearly free, seven-eighths inch by five-eighths inch in size, broadly oval, turgid, slightly contracted at the blunt base, roundish at the apex, with rough and pitted surfaces; ventral suture broad, with a distinct but small wing; dorsal suture widely and deeply grooved. BURBANK [Illustration: BURBANK] _Prunus triflora_