Flora of North America species comparison

reddish, glandular-pubescent, ± viscid.

decumbent to semierect, unarmed, without glutinous bands on internodes.

petiole 1–4 cm;

blade lance-ovate to elliptic, 1–6 × 0.5–2.5 cm, margins entire or sinuate, ciliate;

surfaces short glandular-pubescent, ± viscid, abaxial surface green or glaucous, adaxial surface green.

petiolate, unequal in size in each pair;

blade ± thick and succulent, base usually asymmetric.

5–15-flowered;

bracts lanceolate to ovate, 3–9 × 1–3 mm, thin and green or ± papery, base ± attenuate, margins glandular-puberulent, often ciliate, or glabrate to lightly glandular-puberulent.

axillary, pedunculate, capitate clusters;

receptacle flat to somewhat rounded-conic, with short, pedicel-like projections;

flowers maturing from one side of inflorescence to other;

bracts persistent, not accrescent, 5–10, distinct, thin and translucent, forming an involucre, linear-lanceolate to ovate, broad.

bisexual, chasmogamous;

perianth radially symmetric, funnelform or salverform, constricted beyond ovary, abruptly expanded to 4–5-lobed limb;

stamens (3–)4–5, included;

styles included;

stigmas linear.

tube greenish to pink, 6–18 mm, limb greenish to pink, 3–5 mm diam., lobes inconspicuous.

oval to round in profile, 10–20 × 10–20 mm, walls ± spongy on exterior, indurate on interior, ± smooth to rugose;

lateral ribs, if extending into wings, only slightly raised;

wings (2–)3(–4).

fusiform, indurate throughout, or spongy on exterior, minutely puberulent or glabrous;

wings 2–4, translucent, prominently veined, scarious, extending beyond apex and/or base of body;

sulci smooth or coarsely rugose.