Flora of North America species comparison

(if present) unbranched to few-branched, (0–)10–25 cm.

(if present) usually unbranched, rarely with 1–several short laterals, 0–6(–21) cm.

(3.5–)4–13(–16) × (0.7–)1–3.2 cm;

petiole (1.3–)1.7–10(–12) cm;

blade oblanceolate to rhombic-obovate, margins often coarsely and irregularly dentate or serrate, sometimes pinnately lobed, often with several larger lobes near blade base.

(2.8–)7–16(–21) × (0.3–)1–3(–5) cm;

petiole (1–)3–7(–10) cm;

blade obovate to linear-oblanceolate, margins coarsely and irregularly serrate or dentate, sometimes pinnately lobed or subentire.

buds often recurved when young;

floral tube (35–)40–70(–80) mm;

sepals 22–27(–32) mm;

petals fading pink to light rose, (25–)28–32(–34) mm;

filaments 11–15(–17) mm, anthers 9–12 mm;

style (50–)59–85(–96) mm.

floral tube (20–)40–60(–85) mm;

sepals (15–)24–35(–40) mm;

petals fading rose pink to dark rose purple, (16–)25–40(–48) mm;

filaments (12–)15–24(–26) mm, anthers 9–12 mm;

style (45–)60–120 mm.

straight, oblong-lanceoloid, base asymmetrical, 13–35(–40) × 5–6 mm;

valve margins with a low sinuate ridge to 8–15 small, nearly distinct tubercles;

pedicel 1–3 mm.

falcate or sigmoid, becoming nearly straight at maturity, asymmetrical and often somewhat flattened, lanceoloid to ovoid, (10–)20–40(–50) × 4–6 mm, valve margins with prominent, sinuate ridge with 5–10 peaks, or nearly distinct tubercles;

pedicel 0.5–3 mm.

narrowly obovoid, 2.1–2.6 × 1.1–1.3 mm, embryo 1/2 of seed volume, surface minutely papillose;

seed collar forming a narrow slit above raphe with a slightly sunken membrane, margin entire or obscurely sinuate distally.

narrowly obovoid, 2.5–3.9 × 1.2–1.7 mm embryo 1/2–2/3 of seed volume, surface papillose;

seed collar oblong, membrane depressed deeply into raphial cavity, margin usually sinuate only distally, sometimes sinuate throughout.

= 14, 28.

= 14.