Difference between revisions of "Ivesia arizonica"
Syst. Bot. 14: 233. 1989.
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| − | |distribution= | + | |distribution=Ariz.;Calif.;Nev.;Utah |
|discussion=<p>Varieties 2 (2 in the flora).</p><!-- | |discussion=<p>Varieties 2 (2 in the flora).</p><!-- | ||
--><p>Because the epithet saxosa was retained for <i>Potentilla</i> saxosa upon transfer to <i>Ivesia</i>, a different epithet (arizonica) was needed when Purpusia was likewise transferred in the same publication (B. Ertter 1989). The correct name for this species in <i>Potentilla</i> is <i>P. osterhoutii</i> (A. Nelson) J. T. Howell, due to the existence of <i>P. arizonica</i>.</p> | --><p>Because the epithet saxosa was retained for <i>Potentilla</i> saxosa upon transfer to <i>Ivesia</i>, a different epithet (arizonica) was needed when Purpusia was likewise transferred in the same publication (B. Ertter 1989). The correct name for this species in <i>Potentilla</i> is <i>P. osterhoutii</i> (A. Nelson) J. T. Howell, due to the existence of <i>P. arizonica</i>.</p> | ||
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|basionyms=Purpusia arizonica | |basionyms=Purpusia arizonica | ||
|family=Rosaceae | |family=Rosaceae | ||
| − | |distribution= | + | |distribution=Ariz.;Calif.;Nev.;Utah |
|reference=None | |reference=None | ||
|publication title=Syst. Bot. | |publication title=Syst. Bot. | ||
|publication year=1989 | |publication year=1989 | ||
|special status=Conservation concern;Endemic;Illustrated | |special status=Conservation concern;Endemic;Illustrated | ||
| − | |source xml=https:// | + | |source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/bb6b7e3a7de7d3b7888a1ad48c7fd8f5c722d8d6/coarse_grained_fna_xml/V9/V9_335.xml |
|subfamily=Rosaceae subfam. Rosoideae | |subfamily=Rosaceae subfam. Rosoideae | ||
|tribe=Rosaceae tribe Potentilleae | |tribe=Rosaceae tribe Potentilleae | ||
Revision as of 00:28, 28 May 2020
Plants green, ± tufted, often forming hanging clumps, sometimes rosetted. Stems pendent or prostrate to ascending, (0.2–)0.5–1.6(–3) dm. Basal leaves planar, 2–15(–20) cm; sheathing base usually not strigose abaxially; petiole 3–10 cm; lateral leaflets (2–)3–4(–5) per side, separate, broadly ovate or obovate to orbiculate, (2–)5–15(–18) mm, incised 1/4–3/4 to base into (3–)7–11 ± ovate teeth, apex not setose, surfaces ± sparsely short-pilose, ± glandular; terminal leaflets ± distinct. Cauline leaves 1–3; blade well developed. Inflorescences (1–)5–30(–150)-flowered, open, 0.5–14 cm diam. Pedicels 5–30 mm. Flowers 6–12 mm diam.; epicalyx bractlets 0(–3), lanceolate, 0.9–1.8 mm; hypanthium turbinate or campanulate, 1.5–3(–5) × 1–3(–4) mm; sepals 2–4(–5) mm, acute; petals yellow or white, oblanceolate to elliptic or obovate, (1.6–)2–4 mm; stamens 5, filaments 0.8–1.3 mm, anthers ± yellow, oblong to narrowly ovate, 0.6–1.5 mm; carpels (2–)6–10(–13), atop a stipelike torus, styles 0.9–1.8 mm. Achenes greenish white to light tan, 1.2–2 mm, faintly rugose, ± carunculate.
Distribution
Ariz., Calif., Nev., Utah
Discussion
Varieties 2 (2 in the flora).
Because the epithet saxosa was retained for Potentilla saxosa upon transfer to Ivesia, a different epithet (arizonica) was needed when Purpusia was likewise transferred in the same publication (B. Ertter 1989). The correct name for this species in Potentilla is P. osterhoutii (A. Nelson) J. T. Howell, due to the existence of P. arizonica.
Selected References
None.
Key
| 1 | Petals yellow; hypanthia campanulate. | Ivesia arizonica var. arizonica |
| 1 | Petals white; hypanthia turbinate. | Ivesia arizonica var. saxosa |