Flora of North America species comparison

much-branched, glandular-tomentose when young.

stipular lines faint;

petiole 5–20 mm;

blade ovate-oblong or lanceolate, 3–10 × 1.5–4 cm, base hastate, cuneate, or truncate, margins irregularly dentate, crenate, or subentire, apex acute, abaxial surface appressed-tomentose or with stellate hairs, always with glandular hairs, adaxial glabrous or glabrate.

terminal, racemose, 3–10 × 1.5–4 cm, cymes capitate, 4–28 pairs, 6–12-flowered.

absent;

bracteoles absent.

slightly fragrant;

calyx tomentose and glandular externally, tube 1–1.7 mm, lobes 0.5–0.8 mm;

corolla pale yellow, funnelform, salverform, or campanulate-rotate, tube 1.5–2.4 mm, lobes orbiculate, 0.7–1 × 1–1.5 mm;

stamens inserted in distal 1/3 of corolla tube, included in tube;

ovary ovoid, 0.7–1.2 mm, glandular-tomentose;

stigma clavate, slightly 2-lobed at apex, 0.5–0.7 mm.

capsules, brown, ovoid, 2–2.5 × 1.7–2 mm, glandular-tomentose, dehiscence septicidal and loculicidal.

ellipsoid, 0.5–0.6 × 0.2–0.3 mm, wings absent.