Flora of North America species comparison

often several from base (often with sterile shoots), usually erect or ascending, 0.7–1.5(–2) dm.

simple or few to several from base, erect, ascending, or decumbent, (unbranched or branched distally), 0.5–3.5(–5) dm.

subsessile;

blade broadly oblanceolate, obovate-spatulate, or obovate, 0.6–1.4(–1.7) cm × (1–)2–6 mm (gradually smaller distally), base attenuate, apex rounded, obtuse, or subacute. (Racemes corymbose, simple, or in panicles terminating each stem.) Fruiting pedicels divaricate, straight, slender, (2–)3–7(–9) mm, trichomes uniformly stellate.

subsessile or (proximal) shortly petiolate;

blade usually narrowly oblanceolate to linear, sometimes spatulate or obovate, 3–4(–4.5) cm × (0.5–)1–3.5(–5) mm, base attenuate or cuneate, apex obtuse or acute.

sepals oblong, 1.5–2 × 0.7–1 mm, stellate-pubescent;

petals yellow, broadly spatulate, 2.5–3.5(–4) × 1–1.5 mm, base attenuate, apex often obtuse or rounded, glabrous abaxially;

filaments: median pairs unilaterally broadly winged, apically 1-toothed, lateral pair with lanceolate or narrowly oblong basal appendage, apically obtuse or subacute, 1.5–2 mm;

anthers oblong, 0.3–0.4 mm.

sepals (persistent) oblong, (1.5–)2–3 × 0.7–1.1 mm, pubescent as pedicels;

petals (often persistent) white or pale yellow, usually linear to linear-oblanceolate, rarely obovate, 2–3(–4) × 0.3–0.7(–1) mm, apex emarginate, glabrous or sparsely stellate-pubescent abaxially;

filaments (slender) not appendaged, toothed, or winged, 1–1.5 mm;

anthers ovate, 0.15–0.2 mm.

divaricate or ascending, straight, slender, 2–5(–6) mm, trichomes stellate, with fewer, simple and forked ones.

broadly elliptic or obovate, 3–4.5(–5) × 2.5–3.5 mm, apex obtuse to rounded;

valves inflated at middle or on 1 side, flattened at margins, densely stellate-pubescent;

ovules (1 or) 2 per ovary;

style (slender), 1.5–2 mm, glabrous.

orbicular, (2–)3–4(–5) mm diam., apex emarginate or truncate;

valves uniformly inflated at middle, strongly flattened at margins, sparsely stellate-pubescent;

ovules 2 per ovary;

style (slender), 0.3–0.6(–1) mm, basally stellate-pubescent or glabrous.

ovoid, compressed, 1–1.7 × 0.8–1.2 mm, not winged or margined.

oblong to ovoid, compressed, 1.1–2 × 0.7–1.1 mm, margins narrow, ca. 0.1 mm wide.

= 16, 32.

= 32.