Flora of North America species comparison

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Ivesia patellifera

Kingston Mountain mousetail, Kingston Mountains. ivesia
Habit Plants green, ± tufted, often forming hanging clumps, sometimes rosetted.
Stems

pendent or prostrate to ascending, (0.5–)1–2 dm.
Basal leaves

planar, (2–)5–15 cm; sheathing base not strigose abaxially;

petiole 1–5 cm;

lateral leaflets (1–)2–3(–4) per side, separate, obovate to orbiculate, 5–20 mm, incised 1/4–1/2 to base into 5–9 broadly ovate teeth, apex not setose, surfaces short-pilose, ± glandular;

terminal leaflets distinct.
Cauline leaves

(0–)2;

blade well developed.
Inflorescences

(1–)3–20(–35)-flowered, open, (0.5–)1.5–4(–6) cm diam.
Pedicels

5–20(–30) mm.
Flowers

7–10 cm diam.;

epicalyx bractlets 0;

hypanthium patelliform, 0.5(–1) × 2–3 mm;

sepals 2–4 mm, broadly acute;

petals yellow, narrowly oblanceolate, 2–3 mm;

stamens 5–10, filaments 0.6–1.2(–1.5) mm, anthers yellow, oblong, 0.8–1 mm;

carpels 4–10, styles 1.5–2 mm.
Achenes

greenish white to light tan, 1.5–2 mm, faintly rugose, ± carunculate.

Ivesia patellifera
Phenology Flowering summer.
Habitat Dry, rocky outcrops of limestone, usually crevices of more or less vertical protected cliffs or boulders, in conifer woodlands
Elevation 1400–2200 m (4600–7200 ft)
Distribution
from FNA
CA
[BONAP county map]
Discussion

Of conservation concern.

Ivesia patellifera is confined to crevices in steep wash and canyon walls in the Kingston Mountains of San Bernardino County.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 9, p. 224.
Parent taxa Rosaceae > subfam. Rosoideae > tribe Potentilleae > Ivesia > sect. Setosae
Sibling taxa
I. aperta, I. argyrocoma, I. arizonica, I. baileyi, I. callida, I. campestris, I. cryptocaulis, I. gordonii, I. jaegeri, I. kingii, I. longibracteata, I. lycopodioides, I. muirii, I. multifoliolata, I. paniculata, I. pickeringii, I. pityocharis, I. pygmaea, I. rhypara, I. sabulosa, I. santolinoides, I. saxosa, I. sericoleuca, I. setosa, I. shockleyi, I. tweedyi, I. unguiculata, I. utahensis, I. webberi
Synonyms Potentilla patellifera
Name authority (J. T. Howell) Ertter: Syst. Bot. 14: 232. (1989)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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