Flora of North America species comparison

alternate;

stipular glands absent or minute;

blade linear or narrowly oblong, 10–35 × 0.5–2(–2.5) mm, base flat, not clasping, margins without stalked glands.

alternate;

stipular glands present on proximal nodes;

blade threadlike to linear, 10–20(–30) × 1–1.5 mm, base flat, not clasping, margins eglandular.

cymes monochasial (helicoid), open, internodes long, flowers widely scattered;

bract margins without prominent glands.

cymes dichasial, open, internodes long, flowers widely scattered;

bract margins eglandular.

5–15(–25) mm, 5–25 mm in fruit, pendent in bud, deflexed at 90° angle, slightly bent at apex.

(2–)5–8(–15) mm, 20+ mm in fruit, spreading at 45–90° angle, not reflexed or bent at apex.

sepals erect, not reflexed at tip, ovate, 1.5–2.5(–3.5) mm, equal, margins minutely gland-toothed, surfaces glabrous;

petals widely spreading to reflexed, white or pale pink, usually darker-veined, obovate, 4–7 mm, apex obtuse;

cup white, rim petal attachments in indentations;

stamens exserted;

filaments (3–)4–5(–7) mm;

anthers pink to red-purple, white-margined, dehisced anthers 1.2–2 mm;

ovary chambers 6;

styles 3, white, 3.5–7 mm, exserted.

sepals spreading, lanceolate, 2–3 mm, ± equal, marginal glands minute or absent, surfaces glabrous;

petals horizontally spreading, white or light pink or pink to deep purplish pink and streaked with light or deeper pink, veins white, oblanceolate to obovate or nearly oval, 2.5–3(–4) mm, apex notched;

cup white, rim lobed between petal attachment and filaments;

stamens exserted;

filaments 2.5–3 mm;

anthers white to deep purplish pink bordered with white, dehisced anthers 1.2–2 mm;

ovary chambers 4;

styles 2, white, 2.5–4 mm, exserted.

= 36.