Flora of North America species comparison

erect, branches 1–several from base, unbranched proximal to inflorescence.

stiffly ascending, suffrutescent from woody branching base.

proximal 4–10 pairs opposite, distal alternate, erect to spreading;

stipular glands absent;

blade of proximal leaves spatulate, central and distal elliptic, oblanceolate, or obovate, 15–25 × 3–7 mm, margins entire, not ciliate, apex acute to apiculate.

alternate, tightly appressed or ascending to spreading;

stipular glands present throughout, dark;

blade linear to linear-lanceolate, proximal and midstem leaves 3–10(–12) mm, distal leaves 3–7 × 0.6–1 mm, margins of proximal and midstem leaves entire, distal serrulate, teeth usually gland-tipped, not ciliate, apex of proximal and midstem leaves mucronate, distal acuminate-aristate.

corymbs.

few-flowered panicles;

bracts with irregular scarious margins.

1–10 mm.

2–3 mm, conspicuously articulated.

sepals persistent, lanceolate-ovate, inner shorter, broader, thinner than outer, outer sepals 2–4 mm, margins not scarious, inner sepals usually with a few small, sessile glands along margin distal to middle, rarely eglandular, outer ones entire, apex acute to acuminate;

petals yellow, obovate (sometimes notched at apex), 3–5.5 mm;

stamens 1.2–3 mm;

anthers 0.5–1 mm;

staminodia absent;

styles distinct, 1–2 mm;

stigmas capitate.

sepals deciduous, lanceolate, 4.5–7 mm, margins not scarious, glandular-toothed, apex acute-aristate, glabrous; prominently 1-nerved;

petals pumpkin yellow with a wide, pale, red band distal to a deeply wine red band at base, broadly obovate, 10–13 mm;

stamens 5.5–7 mm;

anthers 1.2–1.6 mm;

staminodia absent;

styles connate nearly to apex, 7–9 mm;

stigmas dark, capitate.

globose, carpels flattened or ± concave abaxially, 1.3–1.8 × 2–2.5 mm, apex depressed, dehiscing freely into 10, 1-seeded segments, segments falling freely, false septa nearly complete, proximal margins usually sparsely and inconspicuously few-ciliate.

ovoid, 3.7–4 × 3 mm, apex obtuse, dehiscing into 5, 2-seeded segments, segments persistent on plant, false septa complete, translucent, proximal part membranaceous, not terminating in loose fringe, distal part cartilaginous, margins ciliate.

1–1.5 × 0.6–0.9 mm.

2.4–2.7 × 0.9–1.1 mm.

= 36.