Difference between revisions of "Ivesia shockleyi"

S. Watson

Proc. Amer. Acad. Arts 23: 263. 1888.

Conservation concernEndemic
Synonyms: Potentilla shockleyi (S. Watson) Jepson
Treatment appears in FNA Volume 9. Treatment on page 227. Mentioned on page 223, 228.
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|distribution=w United States.
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|distribution=Calif.;Nev.;Oreg.;Utah
 
|discussion=<p>Varieties 2 (2 in the flora).</p>
 
|discussion=<p>Varieties 2 (2 in the flora).</p>
 
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|family=Rosaceae
 
|family=Rosaceae
|distribution=w United States.
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|distribution=Calif.;Nev.;Oreg.;Utah
 
|reference=None
 
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|publication title=Proc. Amer. Acad. Arts
 
|publication title=Proc. Amer. Acad. Arts
 
|publication year=1888
 
|publication year=1888
 
|special status=Conservation concern;Endemic
 
|special status=Conservation concern;Endemic
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V9/V9_342.xml
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|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V9/V9_342.xml
 
|subfamily=Rosaceae subfam. Rosoideae
 
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|tribe=Rosaceae tribe Potentilleae
 
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Latest revision as of 19:10, 6 November 2020

Plants green to grayish green, ± densely matted. Stems prostrate to ascending, 0.2–1.5 dm. Basal leaves tightly to loosely cylindric, (1–)2–12(–14) cm; sheathing base strigose to hirsute abaxially; petiole 0.5–4 cm; lateral leaflets (3–)5–15(–18) per side, separate to overlapping at least distally, ± flabellate, 1–4(–6) mm, incised to base or nearly so into 2–10(–12) oblanceolate to obovate or elliptic lobes, apex sometimes setose, surfaces ± sparsely hirsute, ± glandular; terminal leaflets indistinct. Cauline leaves (0–)1; blade vestigial or reduced. Inflorescences 2–20-flowered, ± open, 0.5–4(–6) cm diam. Pedicels 3–10(–12) mm. Flowers 5–10 mm diam.; epicalyx bractlets 5, elliptic or narrowly oblong to ovate, 0.7–2(–3) mm; hypanthium patelliform, 1–2 × 2.5–4.5(–5) mm; sepals 1.5–3.5(–4) mm, acute to obtuse; petals ± yellow, oblanceolate to spatulate or narrowly obovate, 1–3 mm; stamens 5, filaments 0.8–1.8 mm, anthers yellow, oblong, 0.4–0.9 mm; carpels 2–5(–6), styles 1.8–2.5 mm. Achenes greenish cream to light brown, 1.5–2.2(–2.5) mm, smooth, prominently carunculate.

Discussion

Varieties 2 (2 in the flora).

Selected References

None.

Key

1 Lateral leaflets: lobes 2–5(–7); inflorescences 2–10-flowered, 0.5–3 cm diam.; e California, c, se Oregon, c, n Nevada. Ivesia shockleyi var. shockleyi
1 Lateral leaflets: lobes (4–)6–10(–12); inflorescences 5–20-flowered, (1–)3–4(–6) cm diam.; wc Utah. Ivesia shockleyi var. ostleri