Flora of North America species comparison

spreading to erect, (much-branched);

young branches usually glandular-hairy, older branches glabrous or puberulent, (roughened peglike projections remaining after fall of leaves, exfoliating).

persistent, alternate;

petiole present;

blade coriaceous, margins entire, serrulate, or glandular-serrulate, (appearing revolute, abaxial surface less than 1/3 visible).

spreading, not imbricate;

blade linear, 4–12 × 1–1.1 mm, margins serrulate, surfaces often glandular.

terminal, umbellate, corymbiform, or spikelike clusters, 2–30-flowered, sometimes flowers solitary;

perulae absent.

umbellate or corymbiform, 1–14-flowered.

10 mm, glandular;

bracteoles 2.

bisexual, radially symmetric, sepals 5, connate basally;

petals 5, connate for 1/2+ their lengths, corolla deciduous, urceolate, campanulate, or cylindric;

stamens (8–)10, included or exserted;

anthers not awned, dehiscent by terminal slits;

ovary 5-locular;

style included or exserted;

stigma capitate.

nodding;

sepals linear to linear-lanceolate, 2.5–3.5 mm, margins ciliate, glandular-hairy abaxially;

corolla yellow or yellowish green, urceolate, constricted at mouth, 5–8 mm, glabrous, lobes reflexed, ca. 1 mm;

stamens 9–10, included;

filaments 1.5–2 mm, glabrous;

anthers brown on drying, 0.3–0.5 mm;

ovary globose, 1.5–2 mm, glandular-hairy;

style included, 2–3 mm.

capsular, broadly ovoid to globose, dehiscence basipetally septicidal.

5-valved, broadly ovoid, 3–4 × 2.5–3.5 mm, glandular-hairy.

100+, ellipsoid, narrowly winged, not tailed;

testa smooth.

= 12.