Flora of North America species comparison

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

erect, diffusely branching from base (hypocotyl extremely long), not bearing rosettes.

erect, simple or branched, 3–18 cm;

leaf blades elliptic-lanceolate, base short-spurred;

offsets not formed.

erect, simple or branched, 2.5–6 cm;

leaf blades oblong-elliptic or ovate to lanceolate, base short-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).

(proximal leaves soon falling), alternate, ascending to nearly erect, petiolate (petiole 0.5–1.5 mm);

blade light green, often reddish tinged, not glaucous, oblong-elliptic or ovate to lanceolate, terete, 1.6–4.3(–12) × 1.1–1.8 mm, base short-spurred, not scarious, apex rounded with minutely papillose tip, (surfaces minutely papillose).

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

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

bracts similar to leaves.

terminal cymes, (2–)3–6-flowered, sometimes flowers solitary, simple or 1-branched;

branches recurved in bud, becoming erect in flower, forked;

bracts similar to leaves.

absent or to 3 mm.

0.6–3.1 mm, (continuous with calyx tube).

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.

(3–)4(–7)-merous;

sepals erect, connate basally, green, broadly ovate to reniform, equal, ca. 0.5 × 1 mm, apex rounded;

petals divergent, distinct, white, ovate-elliptic, slightly channeled, 1.4–4.2 mm, apex obtuse;

filaments white to pale reddish;

anthers dark red;

nectar scales white or pale yellow, subquadrate.

erect in fruit, basally connate, brown.

widely divergent in fruit, distinct, pale brown.

= 16.

= 8.