Flora of North America species comparison

trailing (nonflowering shoots ascending at tip), laxly branched, not bearing rosettes.

creeping and ascending, branched, not bearing rosettes.

erect, usually simple, 5–10(–15) cm;

leaf blades triangular-ovate, base short-spurred;

offsets not formed.

creeping or ascending, simple, 10–25 cm;

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

offsets not formed.

(usually deciduous, if persistent, then blade white, soft, papery), alternate, (densely imbricate), spreading, sessile;

blade yellow-green, not glaucous, triangular-ovate, terete to semiterete (elliptic in cross section), (2–)5(–8) × 1–4 mm, base obtusely short-spurred, not scarious, apex obtuse.

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.

cymes, 2–12-flowered or flowers solitary, monochasially (1–)2(–3)-branched;

branches not recurved, rarely forked;

bracts similar to leaves, smaller.

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

branches spreading to widely ascending, sometimes forked;

bracts similar to leaves, smaller.

absent or to 1 mm.

absent or to 0.5 mm.

5-merous;

sepals erect to spreading, distinct basally, green, oblong-ovate, unequal, 2–3 × 1.3–2.3, mm, apex obtuse;

petals spreading, distinct, bright yellow, oblong-ovate to lanceolate, not carinate, 5–9 mm, apex acute to acuminate;

filaments yellow;

anthers yellow, (oblong);

nectar scales yellowish green, square.

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.

stellately patent in fruit, distinct, yellowish.

stellately patent in fruit, distinct, yellow-green.

= 40, 60, 80, 100, 120.

= ca. 72.