Flora of North America species comparison

rootstocks, decumbent and ascending, branched, (sometimes papillose), bearing terminal rosettes and above ground shoots.

erect or ascending, simple or much-branched, (glandular-hairy), not bearing rosettes.

erect, simple or branched, 3–18 cm;

leaf blades elliptic-lanceolate, base short-spurred;

offsets not formed.

spreading or erect, simple, 5–15 cm, (glabrous or with scattered glandular hairs);

leaf blades linear to oblong, base not spurred;

offsets not formed.

(not easily detached), alternate, spreading-erect to erect or ascending, sessile;

blade dull gray-green or bluish green, green, or reddish green, often glaucous, lanceolate, elliptic-lanceolate, or elliptic-ovate, subterete, 4.2–13 × 1.5–3.5 mm, base very short-spurred, base of withered blade at times becoming scarious, apex obtuse or obtusely apiculate, (surfaces papillose).

alternate, ascending, sessile;

blade green, sometimes glaucous, linear to oblong, semiterete or ± laminar, 4–20 × 1–2 mm, base not spurred, not scarious, apex obtuse, (surfaces usually glabrous or, rarely, glandular-hairy).

cymes, 5–25-flowered, (1–)3(–6)-branched;

branches ascending, spreading to erect, or recurved, forked;

bracts similar to leaves.

lax to ± dense cymes, 2–8-flowered or flowers solitary, 2–4-branched;

branches not recurved, not forked;

bracts similar to leaves, smaller.

absent or to 3 mm.

to 0.5 mm.

5-merous;

sepals erect, connate basally, pale green to yellow-green, ovate or lanceolate, equal, 2–5 × 1–2 mm, apex acute or, rarely, obtuse, (often papillose);

petals widely spreading from suberect base, distinct, canary to golden yellow, lanceolate, elliptic-lanceolate, or linear-lanceolate, canaliculate, 6–9.2 mm, apex acute to acuminate with minute mucronate appendage;

filaments yellow;

anthers yellow, sometimes suffused with red;

nectar scales deep yellow to yellow-green, obovately square.

5–9-merous;

sepals erect, connate basally, green, broadly triangular, equal, ca. 2 × 1 mm, apex acute, (glandular-pubescent);

petals spreading, distinct, white with pinkish midvein, lanceolate, not carinate, 4–5(–7) mm, apex narrowly acuminate;

filaments white;

anthers dark purple;

nectar scales white, spatulate-quadrate.

erect in fruit, basally connate, brown.

stellate-spreading in fruit, connate basally, white or pale pink.

= 16.

= 40.