Difference between revisions of "Alyssum szowitsianum"
Index Seminum (St. Petersburg) 4: 31. 1837.
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|elevation=1500-2000 m | |elevation=1500-2000 m | ||
|distribution=Utah;sw Asia. | |distribution=Utah;sw Asia. | ||
| − | |discussion=<p>Alyssum szowitsianum is known in the flora area only from Salt Lake County.</p> | + | |introduced=true |
| + | |discussion=<p><i>Alyssum szowitsianum</i> is known in the flora area only from Salt Lake County.</p> | ||
|tables= | |tables= | ||
|references= | |references= | ||
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-->{{#Taxon: | -->{{#Taxon: | ||
name=Alyssum szowitsianum | name=Alyssum szowitsianum | ||
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|authority=Fischer & C. A. Meyer | |authority=Fischer & C. A. Meyer | ||
|rank=species | |rank=species | ||
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|publication year=1837 | |publication year=1837 | ||
|special status= | |special status= | ||
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V7/V7_322.xml |
|tribe=Brassicaceae tribe Alysseae | |tribe=Brassicaceae tribe Alysseae | ||
|genus=Alyssum | |genus=Alyssum | ||
Latest revision as of 22:32, 5 November 2020
Annuals; canescent throughout, trichomes appressed, coarse, 8–16-rayed, rays often subequal. Stems often several from base, erect, ascending, or decumbent, (unbranched or few-branched distally), (0.2–)0.4–1.6(–2) dm. Cauline leaves subsessile; blade oblanceolate or linear-oblanceolate, (0.5–)0.7–1.5(–2) cm × (1–)2–4(–6) mm (gradually smaller distally), base attenuate, apex subacute. Fruiting pedicels ascending to suberect, straight, stout, 1–3(–4) mm, trichomes uniformly stellate. Flowers: sepals oblong, 1.2–1.5 × 0.5–0.6 mm, stellate-pubescent (trichomes with longer rays and appearing simple near apex); petals pale yellow, spatulate, 1.7–2 × 0.4–0.5 mm, base abruptly narrowed to claw, apex deeply emarginate, glabrous; filaments: median pairs not toothed, slightly expanded basally, lateral pair with basal appendage to 0.5 × 0.1 mm, often apically 2-toothed, 1.4–1.7 mm; anthers ovate, 0.1–0.2 mm. Fruits ovate-oblong, (3–)3.5–5 × (2.5–)3–4 mm, apex obtuse; valves uniformly inflated at middle, broadly flattened at margins, densely stellate-pubescent (rays equal); ovules 2 per ovary; style (slender), 0.3–0.5 mm, basally stellate-pubescent. Seeds ovoid, compressed, 1.6–1.9 × 1.2–1.6 mm, margins winglike, 0.1–0.3 mm wide. 2n = 16.
Phenology: Flowering May.
Habitat: Rocky soil
Elevation: 1500-2000 m
Distribution
Introduced; Utah, sw Asia.
Discussion
Alyssum szowitsianum is known in the flora area only from Salt Lake County.
Selected References
None.