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angle-leaf Bishop's-cap, angle-leaf mitrewort, angleleaf miterwort

Brewer's miterwort, Brewer's mitrewort

Habit Plants not stoloniferous. Plants not stoloniferous.
Flowering stems

15–50(–65) cm.

8–25(–40) cm.

Leaves

petiole 3–10(–19) cm, short stipitate-glandular and sparsely long stipitate-glandular, longer hairs spreading or retrorse, white or reddish brown;

blade cordate-ovate or triangular-cordate, longer than or ± as long as wide, 1.3–7.7(–9) × 1.2–7.1(–8) cm, margins 5- or 7-lobed, irregularly crenate or dentate, uniformly ciliate, apex of terminal lobe acute, surfaces short stipitate-glandular and sparsely long stipitate-glandular;

cauline leaves absent or 1–2, proximal, alternate, petiolate, 0.3–3 × 0.3–1.6 cm.

petiole 1.5–7.5(–12) cm, subglabrous or short stipitate-glandular and sparsely long stipitate-glandular, longer hairs spreading, reddish brown;

blade broadly cordate to reniform, usually shorter than, sometimes ± as long as wide, 1.5–7.9 × 1.5–11 cm, margins shallowly 7-, 9-, or 11-lobed, singly or doubly crenate-dentate, glabrous or irregularly ciliate, apex of terminal lobe rounded, surfaces glabrous or sparsely short stipitate-glandular and sparsely long stipitate-glandular;

cauline leaves absent.

Inflorescences

1–3, closely to remotely 8–35-flowered, 1(–2) flowers per node, weakly secund or not secund, 15–50(–65) cm, short stipitate-glandular and sparsely long stipitate-glandular proximally, short stipitate-glandular distally.

1–2, densely (6–)20–40(–60)-flowered, 1–2(–3) flowers per node, not secund, 8–25(–40) cm, glabrous or sparsely arachnoid-pilose proximally, glandular-puberulent distally.

Pedicels

0.2–1.5 mm, short stipitate-glandular.

1–2 mm, short stipitate-glandular.

Flowers

hypanthium obconic-campanulate, 1.2–1.8 × 1.4–2.2 mm;

sepals erect or spreading, whitish, oblong-ovate to oblong-triangular or triangular, (0.6–)0.9–1.2 × 0.6–1 mm;

petals white, sometimes pink or purple tinged, 3–5-lobed, 1–1.5 mm, lobes linear, lateral lobes ascending;

stamens 5, opposite sepals;

filaments white, 0.2–0.3 mm;

anthers 0.1–0.2 × 0.1–0.2 mm;

ovary at least 3/4 inferior;

styles spreading, flattened, 0.1–0.2 mm;

stigmas indistinctly 2-lobed.

hypanthium broadly saucer-shaped, 0.8–1.6 × 2.5–3.5 mm;

sepals spreading, yellowish green or greenish, triangular to broadly triangular, 0.7–1 × 0.9–1.9 mm;

petals greenish yellow or greenish, (4–)7–11-lobed, 1.5–2 mm, lobes linear, lateral lobes spreading;

stamens 5, opposite sepals;

filaments white or greenish, 0.1–0.2 mm;

anthers 0.1–0.2 × 0.2–0.5 mm;

ovary nearly completely inferior;

styles divergent, flattened, 0.1–0.2 mm;

stigmas 2-lobed.

Seeds

dark reddish brown or blackish, 0.8–1.4 mm, pitted.

dark reddish brown or blackish, 0.8–1.2 mm, pitted.

2n

= 14.

= 14.

Mitella diversifolia

Mitella breweri

Phenology Flowering May–Jul. Flowering May–Sep.
Habitat Moist woods, stream banks Moist forests, glades, stream banks, meadows, open to wooded mountain slopes
Elevation 500-2000 m (1600-6600 ft) 500-3500 m (1600-11500 ft)
Distribution
from FNA
CA; OR; WA
[WildflowerSearch map]
from FNA
CA; ID; MT; NV; OR; WA; AB; BC
[WildflowerSearch map]
Discussion

Mitella diversifolia occurs from Klickitat County, Washington, south to El Dorado County, California.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source FNA vol. 8, p. 113. FNA vol. 8, p. 112.
Parent taxa Saxifragaceae > Mitella Saxifragaceae > Mitella
Sibling taxa
M. breweri, M. caulescens, M. diphylla, M. nuda, M. ovalis, M. pentandra, M. stauropetala, M. trifida
M. caulescens, M. diphylla, M. diversifolia, M. nuda, M. ovalis, M. pentandra, M. stauropetala, M. trifida
Synonyms Ozomelis diversifolia Pectiantia breweri
Name authority Greene: Pittonia 1: 32. 1887 , A. Gray: Proc. Amer. Acad. Arts 6: 533. 1865 ,
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