Flora of North America species comparison

erect to ascending, unbranched proximally, few to many branches above middle, conspicuously sulcate.

stiffly ascending, suffrutescent from woody branching base.

proximal 0–13 pairs opposite (often fallen at anthesis), distal alternate, appressed-ascending;

stipular glands usually present, very rarely absent;

blade linear to narrowly lanceolate, 7–30 × 1–3 mm, margins entire, distal leaves not ciliate, apex acute to subulate;

midrib prominent, marginal nerves less conspicuous.

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.

open panicles;

bracts glandular-toothed, not ciliate.

few-flowered panicles;

bracts with irregular scarious margins.

1.3–4.7 mm.

2–3 mm, conspicuously articulated.

sepals persistent, lanceolate, (3.1–)3.6–5(–7.3) mm, inner sepals more delicate than outer, shorter, margins not scarious, all very conspicuously glandular-toothed, apex acuminate, central and marginal veins conspicuous;

petals pale yellow, obovate, 5–10 mm;

stamens 3.3–5.7 mm;

anthers 0.3–0.7 mm;

staminodia absent;

styles connate 0.2–1.8 mm at base, 2–4.5 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, 2.5–3.3 × 2.1–3 mm, apex rounded to acute, dehiscing freely into 10, sharp-pointed, 1-seeded segments;

segments persistent on plant, false septa incomplete, margins prominently 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.

1.6–2.1 × 0.8–1.1 mm.

2.4–2.7 × 0.9–1.1 mm.

= 30.