Difference between revisions of "Hesperidanthus argillaceus"

(S. L. Welsh & N. D. Atwood) Al-Shehbaz

Harvard Pap. Bot. 10: 50. 2005.

Basionym: Thelypodiopsis argillacea S. L. Welsh & N. D. Atwood
Synonyms: Schoenocrambe argillacea (S. L. Welsh & N. D. Atwood) Rollins
Treatment appears in FNA Volume 7. Treatment on page 690. Mentioned on page 691.
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|distribution=Utah.
 
|distribution=Utah.
 
|discussion=<p>Of conservation concern.</p><!--
 
|discussion=<p>Of conservation concern.</p><!--
--><p>Hesperidanthus argillaceus is restricted to the Uinta and upper Green River shale formation in Uintah County.</p>
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--><p><i>Hesperidanthus argillaceus</i> is restricted to the Uinta and upper Green River shale formation in Uintah County.</p>
 
|tables=
 
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|references=
 
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|publication year=2005
 
|publication year=2005
 
|special status=
 
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/9216fc802291cd3df363fd52122300479582ede7/coarse_grained_fna_xml/V7/V7_1188.xml
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|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V7/V7_1188.xml
 
|tribe=Brassicaceae tribe Thelypodieae
 
|tribe=Brassicaceae tribe Thelypodieae
 
|genus=Hesperidanthus
 
|genus=Hesperidanthus

Revision as of 18:54, 18 September 2019

Perennials. Stems simple or few from caudex, erect, (few-branched distally), 1.3–3 dm. Leaves subsessile; blade linear or linear-lanceolate, 0.9–4cm × (0.8–)1–3(–6) mm, base cuneate to attenuate, margins entire, apex acute. Racemes 5+-flowered. Fruiting pedicels suberect, ascending, or divaricate, straight or curved upward, 7–18 mm. Flowers: sepals purple, 4.2–6.5 × ca. 1.5 mm; petals white or lilac (with darker purple veins), 8–11 × 2.5–4 mm, claw undifferentiated from blade; filaments 1.5–2.5 mm; anthers oblong, 1–1.5 mm; gynophore 0–0.3 mm. Fruits curved, terete, 1.8–5.5 cm × 1–1.2 mm; ovules 54–62 per ovary; style subclavate, 0.5–2 mm; stigma flat, obscurely 2-lobed. Seeds 1.5–1.8 × 0.7–0.9 mm.


Phenology: Flowering Apr–Jun.
Habitat: Desert shrub or sagebrush communities, rocky slopes, shale barrens
Elevation: 1400-1800 m

Discussion

Of conservation concern.

Hesperidanthus argillaceus is restricted to the Uinta and upper Green River shale formation in Uintah County.

Selected References

None.

Lower Taxa

None.