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 minute or absent;

blade linear, 10–20 × 1–2 mm, base flat, not clasping, margins eglandular or minutely gland-toothed.

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

bract margins without prominent glands.

cymes usually monochasial (scorpioid), sometimes dichasial, open, internodes long, flowers widely scattered;

bract margins eglandular or minutely gland-toothed.

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

1–5(–8) mm, 5–10(–25) mm in fruit, straight in bud, spreading at 75–90° 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 erect, usually spreading at tip, lanceolate, 2–3 mm, equal, marginal glands small, surfaces glabrous or with hoary microscopic puberulence;

petals widely spreading, white or pink to lavendar-pink or rose pink, veins usually pink, usually obovate, sometimes oblanceolate, (3–)4–5(–6) mm, apex notched, sometimes deeply;

cup white, rim with petal attachment in shallow sinus;

stamens exserted;

filaments (2.5–)3–3.5(–4) mm;

anthers usually pink, sometimes deep rose, white-margined, dehisced anthers (0.8–)1.2–1.8(–2) mm;

ovary chambers 6;

styles 3, white, (2.5–)3–4(–5) mm, exserted.

= 36.

= 34.