Difference between revisions of "Ivesia shockleyi"
Proc. Amer. Acad. Arts 23: 263. 1888.
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Revision as of 22:34, 13 August 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.
Distribution
Calif., Nev., Oreg., Utah
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 |