Difference between revisions of "Erysimum insulare"
Bull. Torrey Bot. Club 13: 218. 1886.
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| + | |special_status={{Treatment/ID/Special_status | ||
| + | |code=E | ||
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|name=Cheiranthus insulare | |name=Cheiranthus insulare | ||
|authority=(Greene) Greene | |authority=(Greene) Greene | ||
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|hierarchy=Brassicaceae;Brassicaceae tribe Erysimeae;Erysimum;Erysimum insulare | |hierarchy=Brassicaceae;Brassicaceae tribe Erysimeae;Erysimum;Erysimum insulare | ||
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name=Erysimum insulare | name=Erysimum insulare | ||
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|publication title=Bull. Torrey Bot. Club | |publication title=Bull. Torrey Bot. Club | ||
|publication year=1886 | |publication year=1886 | ||
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| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V7/V7_859.xml |
|tribe=Brassicaceae tribe Erysimeae | |tribe=Brassicaceae tribe Erysimeae | ||
|genus=Erysimum | |genus=Erysimum | ||
Latest revision as of 22:36, 5 November 2020
Perennials or subshrubs. Tri-chomes of leaves primarily 2-rayed, sometimes mixed with 3-rayed ones. Stems ascending to sprawling, proximal branches terminating in sterile rosettes, (woody at base), 0.5–3 dm. Basal leaves: blade linear to linear-oblanceolate, (2–)3.7–9 cm × 2–5(–10) mm, base attenuate, margins usually entire, rarely sparsely denticulate, apex acute. Cauline leaves (distal) sessile; similar to basal. Racemes considerably elongated in fruit. Fruiting pedicels widely spreading, slender, narrower than fruit, (8–)10–22 mm. Flowers: sepals oblong to linear-oblong, 6–10 mm, lateral pair slightly saccate basally; petals yellow, broadly obovate to suborbicular, (11–)14–20(–22) × (3–)4–11.5 mm, claw 7–10 mm, apex rounded; median filaments 7–10 mm; anthers linear, 2–3 mm. Fruits ascending to spreading, narrowly linear, straight or only slightly curved inward, not torulose, 2–5(–7) cm × 2–3 mm, angustiseptate, not striped; valves with prominent midvein, pubescent outside, trichomes 2–4-rayed, glabrous inside; ovules 36–50 per ovary; style cylindrical or slightly flattened, stout, 1–4 mm, sparsely pubescent; stigma slightly 2-lobed, lobes as long as wide. Seeds oblong, 1–2 × 1.2–2 mm; not winged. 2n = 36.
Phenology: Flowering Mar–May.
Habitat: Sandy areas along coastal bluffs, coastal scrub
Elevation: 0-300 m
Discussion
Erysimum insulare is restricted to the northern Channel Islands (San Miguel and Santa Rosa islands) of western Ventura County.
Selected References
None.