Flora of North America species comparison

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

usually unbranched, rarely with 1–several branches from near base, 10–40 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–)10–26(–36) × (0.6–)1–3(–4.5) cm;

petiole (3–)4–11(–14) cm;

blade usually oblanceolate to narrowly elliptic, rarely lanceolate, margins coarsely and irregularly pinnately lobed to dentate or, rarely, serrate.

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 (41–)80–140(–165) mm;

sepals (22–)34–45(–54) mm;

petals fading pink to lavender, (24–)35–50(–60) mm;

filaments (16–)20–30(–35) mm, anthers (10–)12–17(–20) mm;

style (78–)100–150(–185) 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.

straight, cylindrical to, sometimes, lanceoloid-cylindrical, slightly asymmetrical, (21–)25–50(–68) × 6–8 mm, valve margins with minute to conspicuous tubercles, these sometimes coalesced into a sinuate ridge;

pedicel (0–)1–40(–55) 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.

usually narrowly to broadly obovoid, rarely suborbicular, 2.2–3.4 × 1.1–2.6 mm, embryo 1/5–1/2 of seed volume, surface appearing longitudinally striate, reticulate under magnification;

seed collar large, usually appearing inflated, sealed by a flat membrane which is often slightly depressed into seed collar cavity, margin entire or obscurely sinuate distally.

= 14, 28.

= 14.