Difference between revisions of "Erysimum menziesii"

(Hooker) Wettstein

Oesterr. Bot. Z. 39: 283. 1889.

EndemicConservation concern
Basionym: Hesperis menziesii Hooker Fl. Bor.-Amer. 1: 60. 1830
Synonyms: Cheiranthus grandiflorus A. Heller
Treatment appears in FNA Volume 7. Treatment on page 542. Mentioned on page 536, 540.
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|name=Hesperis menziesii
 
|name=Hesperis menziesii
 
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|publication_title=Fl. Bor.-Amer.
 
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|name=Cheiranthus grandiflorus
 
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|hierarchy=Brassicaceae;Brassicaceae tribe Erysimeae;Erysimum;Erysimum menziesii
 
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name=Erysimum menziesii
 
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|publication year=1889
 
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|tribe=Brassicaceae tribe Erysimeae
 
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|genus=Erysimum
 
|genus=Erysimum

Latest revision as of 22:36, 5 November 2020

Biennials or perennials; (short-lived). Trichomes of leaves 2–5(–7)-rayed on adaxial leaf surface. Stems erect, unbranched or branched distally, 0.2–2.5(–3.5) dm. Basal leaves: blade (fleshy or not), spatulate, 2–10 cm × 5–15 mm, base cuneate, margins dentate, entire, or lobed, apex obtuse. Cauline leaves (distal) sessile or short-petiolate; blade margins entire or dentate. Racemes elongated slightly in fruit. Fruiting pedicels horizontal to divaricate, slender, narrower than fruit, 4–15 mm. 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. 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. Seeds oblong (compressed), 1.8–2.8(–3.5) × 1–2 mm; winged distally (wing narrow all around). 2n = 36.


Phenology: Flowering Jan–Aug.
Habitat: Stabilized coastal sand dunes
Elevation: 0-300 m

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.

Selected References

None.

Lower Taxa

None.