Flora of North America species comparison

phyllodic; fascicled or whorled;

phyllode quadrangular, straight, linear, acicular, 5–20 × 0.5–1.5 mm, venation parallel, midvein prominent, minor veins not obvious, apex acuminate, sharp-pointed, surfaces mostly glabrous;

gland 1 (usually not obvious, disc-shaped), 3–6 mm distal to leaf base;

pulvinus absent.

phyllodic;

phyllode flat, one side nearly straight, the other rounded or angled, inequilateral, often deltate to triangular, 10–30 × 5–15 mm, venation parallel, midvein prominent, minor veins not obvious, apex acute, apiculate, surfaces glabrous;

gland 1, prominent, near widest part of leaf;

pulvinus 0.3–1 mm.

cylindrical spikes, densely flowered, 10–45 × 4–7 mm, solitary in leaf axils.

globose to slightly elongated heads, densely flowered, 3–7 mm, in pseudoracemes of 5–20 heads, usually solitary in distal leaf axils.

2–12 mm.

2–5 mm.

5-merous, pale yellow;

calyx 0.5–0.8 mm;

corolla 1.1–1.6 mm;

filaments 2.2–3.2 mm;

ovary glabrous.

5-merous, golden yellow;

calyx 0.5–0.9 mm;

corolla 1.3–1.8 mm;

filaments 2.7–3.5 mm;

ovary glabrous.

flattened, linear, 20–90 × 2.7–5 mm, not constricted between seeds.

flattened, linear, 40–90 × 5–8 mm, slightly constricted between some seeds.

aril light yellow, folded and thickened, forming cap on seed.

aril white, club-shaped, from base.

= 26.