Erysimum menziesii |
Erysimum ammophilum |
|
---|---|---|
Menzies' wallflower |
coast wallflower, sand-loving wallflower |
|
Habit | Biennials or perennials; (short-lived). | Biennials or perennials; (short-lived). |
Stems | erect, unbranched or branched distally, 0.2–2.5(–3.5) dm. |
erect, unbranched or branched distally, 0.4–9(–13) dm. |
Basal leaves | blade (fleshy or not), spatulate, 2–10 cm × 5–15 mm, base cuneate, margins dentate, entire, or lobed, apex obtuse. |
blade (somewhat fleshy), linear-oblanceolate, 3.5–15.5 cm × 2–9 mm, base attenuate, margins entire or obscurely dentate, apex acute. |
Cauline leaves | (distal) sessile or short-petiolate; blade margins entire or dentate. |
blade (oblanceolate), margins entire. |
Racemes | elongated slightly in fruit. |
considerably elongated in fruit. |
Flowers | 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, 7.5–11(–13) mm, lateral pair slightly saccate basally; petals bright yellow, broadly obovate to suborbicular, 14–24 × 6–11(–14) mm, claw 8–14 mm, apex rounded; median filaments 8.5–12 mm; anthers linear, 3–4 mm. |
Fruiting pedicels | horizontal to divaricate, slender, narrower than fruit, 4–15 mm. |
divaricate to divaricate-ascending, stout, slightly narrower than fruit, 4–10(–13) mm. |
Fruits | 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. |
spreading, narrowly linear, straight, not torulose, (2–)3.5–12 cm × 1.5–3.5 mm, latiseptate, not striped; valves with prominent midvein, pubescent outside, trichomes 2–4-rayed, glabrous inside; ovules 50–86 per ovary; style cylindrical, stout, 0.3–1.5(–2) mm, sparsely pubescent; stigma slightly 2-lobed, lobes as long as wide. |
Seeds | oblong (compressed), 1.8–2.8(–3.5) × 1–2 mm; winged distally (wing narrow all around). |
oblong, 1.5–3 × 1–1.8 mm; winged distally (narrowly so around). |
Trichomes | of leaves 2–5(–7)-rayed on adaxial leaf surface. |
of leaves 2–4(–7)-rayed. |
2n | = 36. |
= 36. |
Erysimum menziesii |
Erysimum ammophilum |
|
Phenology | Flowering Jan–Aug. | Flowering Mar–Apr. |
Habitat | Stabilized coastal sand dunes | Sand dunes |
Elevation | 0-300 m (0-1000 ft) | 0-50 m (0-200 ft) |
Distribution |
CA
|
CA |
Discussion | 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.) |
Of conservation concern. Erysimum ammophilum is restricted to coastal and nearby sand dunes of Monterey and Santa Cruz counties. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 7, p. 542. | FNA vol. 7, p. 536. |
Parent taxa | Brassicaceae > tribe Erysimeae > Erysimum | Brassicaceae > tribe Erysimeae > Erysimum |
Sibling taxa | ||
Synonyms | Hesperis menziesii, Cheiranthus grandiflorus | Cheiranthus ammophilus, Cheirinia ammophila |
Name authority | (Hooker) Wettstein: Oesterr. Bot. Z. 39: 283. (1889) | A. Heller: Muhlenbergia 1: 51. (1904) |
Web links |