Flora of North America species comparison

reddish brown, not flexuous, ridged, glabrous.

light to dark reddish brown, not flexuous, ridged, densely pubescent;

stipular spines present.

phyllodic;

phyllode flat, slightly falcate, linear-lanceolate to narrowly oblanceolate, 30–200 × 3–14 mm, venation pinnate, midvein medial, minor veins not obvious, apex acuminate, apiculate, surfaces glabrous;

gland 1, 1–10 mm distal to pulvinus (not obvious, not disciform);

pulvinus 1–3 mm.

phyllodic;

phyllode undulate, straight, lanceolate to narrowly oblong-elliptic, 7–20 × 2–7 mm, venation pinnate, midvein usually eccentric, minor veins prominent, apex acute to obtuse, not apiculate, spine-tipped, surfaces slightly pubescent or glabrous;

gland 1, 2–5 mm distal to leaf base;

pulvinus absent.

globose heads, densely flowered, 5–7 mm diam., in solitary pseudoracemes of 5–9 heads in leaf axils.

globose heads, densely flowered, 8–12 mm diam., 1 (or 2) in leaf axils.

2–5 mm.

5–18 mm.

5-merous, pale yellow to cream;

calyx 0.5–0.9 mm;

corolla 1.2–1.7 mm;

filaments 2.5–3.5 mm;

ovary glabrous.

5-merous, bright yellow;

calyx 1–1.7 mm;

corolla 1.6–2.4 mm;

filaments 3.3–4.3 mm;

ovary glabrous or pubescent.

flattened, linear, 40–160 × 4–7 mm, slightly constricted between seeds.

flattened, oblong, 30–60 × 4–7 mm, not constricted between seeds.

aril light yellow, nearly encircling seed.

aril yellow, club-shaped, 1–2 mm, forming cap on seed.

= 26.