Flora of North America species comparison

erect, glabrous.

essentially basal or, sometimes, highly reduced or absent (P. chlorantha, P. picta), alternate;

petiole present;

blade maculate or not, elliptic, ovate-elliptic, oblong-elliptic, oblanceolate, oblong-obovate, ovate, obovate, spatulate, subreniform, reniform, or round, subcoriaceous to coriaceous, margins entire, denticulate, crenulate, crenate, or crenate-serrulate, plane or revolute, surfaces glabrous.

petiole (6–)15–65(–109) mm, channeled adaxially, glabrous;

blade not maculate, dull and light green to purplish abaxially, shiny and dark green adaxially, ovate, elliptic, round, or reniform, (10–)24–71(–98) × (10–)13–49(–83) mm, coriaceous, base cordate or rounded to decurrent, margins entire or crenulate or denticulate, apex obtuse to acute.

racemes, usually erect in flower and fruit, (symmetric);

peduncular bracts present or absent;

inflorescence bracts free from pedicels.

1 per stem, 4–29-flowered;

peduncular bracts 1–3(–5), ovate to oblong-ovate, 7–16 × 2.5–5 mm, chartaceous or membranous, margins entire;

inflorescence bracts ovate to oblong-ovate, usually as long as or longer than, sometimes shorter than subtended pedicels, 3–17 × 1–3.6 mm, chartaceous.

pendent in fruit;

bracteoles absent.

(3–)4–11 mm.

radially symmetric (bilaterally symmetric in P. minor), spreading or nodding;

sepals 5, connate proximally, often obscurely so, calyx lobes lanceolate, ovate, triangular, deltate, oblong, or obovate;

petals 5, distinct, white, greenish white, yellowish white, pink, or purplish red, without basal tubercles, corolla crateriform to broadly campanulate;

intrastaminal nectary disc absent;

stamens 10, exserted;

filaments broad proximally, gradually narrowed medially, slender distally, glabrous;

anthers oblong, without awns, with or without tubules, dehiscent by 2 round to elliptic or obovate pores;

pistil 5-carpellate;

ovary imperfectly 5-locular;

placentation intruded-parietal;

style (exserted or included), bent downward or straight (P. minor), expanded distally;

stigma 5-lobed, without subtending ring of hairs.

calyx lobes appressed or spreading in fruit, green or pinkish with margins hyaline to white or pinkish, triangular to triangular-ovate, 1.4–5.5(–5.8) × 1.3–2.7 mm, margins entire or erose-denticulate, apices acute to acuminate;

petals white, white proximally and pinkish distally, or pink to purplish red throughout, obovate to round, 4.8–9.1 × 2.9–6 mm, margins entire;

stamens 4.5–7.5 mm;

filament base 0.6–1.1 mm wide;

anthers (1.7–)2–3.5(–3.9) mm, apiculations 0.1–0.5(–0.7) mm, thecae creamy white or tan to dark pink, tubules pink to dark pink, 0.1–0.4 mm, gradually narrowed from thecae, lateral walls touching for most of their lengths, pores 0.1–0.2 × 0.05–0.1 mm;

ovary smooth;

style exserted, 7–10 mm;

stigma 0.7–1.6 mm wide, lobes erect, (without subtending ring of hairs).

capsular, pendulous, dehiscence loculicidal, cobwebby tissue exposed by splitting valves at dehiscence.

depressed-globose, 4–5 × 6–8 mm.

ca. 1000, fusiform, winged.

= 23.

= 46.