Erysimum menziesii
Erysimum suffrutescens
Menzies' wallflower
island wallflower, suffrutescent wallflower
erect, unbranched or branched distally, 0.2–2.5(–3.5) dm.
ascending, proximal branches terminating in sterile rosettes, (woody at base), 1.5–8.1 dm.
blade (fleshy or not), spatulate, 2–10 cm × 5–15 mm, base cuneate, margins dentate, entire, or lobed, apex obtuse.
blade linear to linear-oblanceolate, 3.7–15 cm × 1.5–6(–7) mm, base attenuate, margins usually entire, rarely sparsely denticulate, apex acute.
(distal) sessile or short-petiolate;
blade margins entire or dentate.
(distal) sessile;
blade similar to basal.
elongated slightly in fruit.
considerably elongated in fruit.
sepals oblong, 7–14 mm, lateral pair saccate basally;
petals yellow, usually suborbicular, rarely obovate, 15–30 × 6–14 mm, claw 10–15 mm, apex rounded;
median filaments 10–13 mm;
anthers linear, 3–4 mm.
sepals oblong to linear-oblong, 6–11 mm, lateral pair saccate basally;
petals yellow, obovate to suborbicular, (11–)14–20(–22) × (3–)4–11.5 mm, claw 8–13 mm, apex rounded;
median filaments 7–11 mm;
anthers linear, 2.5–4 mm.
horizontal to divaricate, slender, narrower than fruit, 4–15 mm.
ascending, slender, narrower than fruit, (3–)5–10 mm.
widely spreading or divaricate, linear, straight, not torulose, 3–14 cm × 2–4 mm, terete when green, becoming latiseptate when dry, not striped;
valves with obscure midvein, pubescent outside, trichomes (2 or) 3 or 4 (or 6)-rayed, glabrous inside;
ovules 32–74 per ovary;
style cylindrical, slender, 0.3–2 mm, sparsely pubescent;
stigma 2-lobed, lobes as long as wide.
ascending to spreading, narrowly linear, straight or only slightly curved inward, not torulose, (2–)3–8.4(–11) cm × 1.5–2.4(–3.5) mm, 4-angled to only slightly latiseptate, not striped;
valves with prominent midvein, pubescent outside, trichomes 2–4-rayed, glabrous inside;
ovules 48–82 per ovary;
style cylindrical, stout, 0.5–4 mm, sparsely pubescent;
stigma slightly 2-lobed, lobes as long as wide.
oblong (compressed), 1.8–2.8(–3.5) × 1–2 mm; winged distally (wing narrow all around).
oblong, 1.5–2.5(–3) × (0.7–)1–1.2(–1.4) mm;
not winged or winged apically.
of leaves 2–5(–7)-rayed on adaxial leaf surface.
of leaves 2-rayed, sometimes mixed with 3- or 4-rayed ones.
= 36.
= 36.
Erysimum menziesii
Erysimum suffrutescens
Of conservation concern.
Erysimum menziesii is restricted to the coasts of Humboldt, Mendocino, and Monterey counties. R. A. Price (1993) divided the species into four subspecies, three of which were invalidly published.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Erysimum suffrutescens is restricted to the coastal regions of Los Angeles County northward into San Luis Obispo, Santa Barbara, and Ventura counties. Both G. B. Rossbach (1958, 1958b) and R. C. Rollins (1993) treated it as a distinct species, but R. A. Price (1993) transferred it (invalidly) to a subspecies of E. insulare. The latter species has angustiseptate (versus 4-angled to slightly latiseptate) fruits, and the two are sufficiently distinct to be recognized as independent species.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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