Flora of North America species comparison

petiole 4–12 mm;

blade with 5–8 secondary veins, obovate to broadly elliptic or broadly rhombic, 7–20 × 4–14.3 cm, largest blades on sterile shoots 5–20 cm wide, margins of at least some leaves on sterile shoots (and often fertile shoots) denticulate to serrate, rarely also lobed, longest arms of abaxial hairs 0.2–0.6 mm.

4–9 mm, usually shorter than calyx.

calyx 4–6 × 3–6 mm;

corolla 10–21 mm, tube 3–5 mm, lobes 5(–6), imbricate in bud, slightly reflexed, elliptic, 8–16 × 3–7 mm;

filaments distinct beyond adnation to corolla.

-terminal inflorescences 2–19-flowered or solitary flower, 3–11.5 cm;

axillary flowers present on at least some shoots (subtending leaves often reduced).

fruits globose to subglobose, 8–12 × 6–8 mm (broader when 2–3-seeded), gray to yellowish gray stellate-pubescent, indehiscent or at most with 1–3 narrow longitudinal fissures, barely exposing seed(s);

fruit wall 0.4–0.5 mm thick.

= 32.