Flora of North America species comparison

creeping and ascending, branched, not bearing rosettes.

decumbent, branched, not bearing rosettes.

creeping or ascending, simple, 10–25 cm;

leaf blades narrowly oblanceolate-elliptic, base short-spurred;

offsets not formed.

erect, branched, 8.5–20 cm;

leaf blades linear-elliptic or linear-lanceolate, base spurred;

offsets not formed.

in whorls of 3, spreading, sessile;

blade pale yellowish green, not glaucous, narrowly rhombic-elliptic to widely lanceolate, subterete, 10–25 × 4–6 mm, base spurred, not scarious, apex subacute.

in whorls of 4(–5), spreading, sessile;

blade bright green, not glaucous, linear-elliptic or linear-lanceolate, subterete, 8–20 × 1.9–3 mm, base spurred, not scarious, apex blunt.

dense cymes or corymbs, 8–40-flowered, (1–)2–4-branched;

branches spreading to widely ascending, sometimes forked;

bracts similar to leaves, smaller.

cymes, 20–50+-flowered, 3-branched;

branches scorpioid, 2-forked;

bracts similar to leaves, smaller.

absent or to 0.5 mm.

absent.

5-merous;

sepals spreading, distinct basally, green, widely lanceolate to oblong, often unequal, 3.5–5 × 0.8–1.5 mm, apex acute or obtuse;

petals spreading, slightly connate, yellowish, lanceolate to oblong, not carinate, 5–8 mm, apex long-mucronate;

filaments yellow;

anthers reddish;

nectar scales orange, rectangular-spatulate.

5-merous;

sepals spreading, distinct basally, green, lanceolate, unequal, 3.3–4.7 × 0.9–1.6 mm, apex acute;

petals widely spreading, distinct, golden yellow, elliptic, not carinate, 3.3–4.8 mm, apex acute;

filaments yellowish;

anthers yellow;

nectar scales pale yellow, obovate- to spatulate-subquadrate.

stellately patent in fruit, distinct, yellow-green.

erect, distinct, yellowish green.

= ca. 72.

= 36.