Flora of North America species comparison

phyllodic;

phyllode flat, not falcate, narrowly elliptic, 50–150 × 10–25 mm, venation parallel, with 2–4 prominent veins, minor veins prominent, apex acute to obtuse, apiculate, surfaces glabrous;

gland 1, 0–7 mm distal to pulvinus;

pulvinus 2–5 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.

cylindrical spikes, densely flowered, 20–50 × 5–8 mm, solitary or in fascicles of 2 or 3 in leaf axils.

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

0–2 mm.

5–18 mm.

4-merous, bright yellow;

calyx 0.6–0.9 mm;

corolla 1.5–2.1 mm;

filaments 2.6–3.6 mm;

ovary pubescent.

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.

elliptic in cross section, linear, 50–150 × 5–9 mm, somewhat constricted between seeds.

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

aril light yellow, folded several times into thickened, lateral, skirtlike aril covering seed apex.

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