Flora of North America species comparison

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

rootstocks, vertical, branched, (glandular), bearing terminal rosettes.

erect, usually simple, 5–10(–15) cm;

leaf blades triangular-ovate, base short-spurred;

offsets not formed.

recurved when young, simple, 13–30 cm, (glandular-pubescent);

leaf blades oblong-oblanceolate, base not 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.

alternate, ascending, sessile;

blade green, glaucous when young, oblong-spatulate, laminar, 14–32 × 9–14 mm, base not spurred, not scarious, apex widely rounded to obtuse or emarginate, with papillose-crenulate appendage, (surfaces of proximal leaves glabrous, of distal leaves glandular-hairy).

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

branches not recurved, rarely forked;

bracts similar to leaves, smaller.

cymes (sometimes appearing paniculate), 20–30-flowered, (2–)3-branched;

branches not recurved, not forked;

bracts similar to leaves, smaller.

absent or to 1 mm.

1–3.6 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 erect, connate basally, green, ovate or lanceolate, equal, 6.5–8.5 × 3–4.5 mm, apex obtuse or acute, (glandular-pubescent);

petals erect, (convolute), connate basally, sulphur yellow, oblong-lanceolate, not carinate, 12.5–16 mm, apex aristate, (glandular-pubescent);

filaments greenish yellow;

anthers yellow;

nectar scales white or translucent, narrowly reniform.

stellately patent in fruit, distinct, yellowish.

subdivergent in fruit, connate basally, brown.

= 40, 60, 80, 100, 120.

= 30.